Diagnosis by Symptom

The Diagnosis by Symptom Charts give the service technician diagnostic information, direction and possible components, using a symptom as a starting point.

The Diagnosis by Symptom charts are divided into two categories: Electrical Routines, indicated by 200 series numbers, and Hydraulic/Mechanical Routines, indicated by 300 series numbers. The Electrical Routines list the possible electrical components that could cause or contribute to the symptom described. The Hydraulic/Mechanical Routines list the possible hydraulic or mechanical components that could cause or contribute to the symptom described.

Diagnosis by Symptom Chart Directions

1. Using the Diagnosis by Symptom Index, select the Concern/Symptom that best describes the condition.

2. Turn to the Routine indicated in the Diagnosis by Symptom Index.

3. Always begin diagnosis of a symptom using the following:

   1. Preliminary Inspections.
   2. Verifications of Condition.
   3. Check the Fluid Level.
   4. Perform other Test Procedures as directed.

4. NOTE: Not all concerns and conditions with electrical components will set a diagnostic trouble code (DTC). Be aware that the components listed may still be the cause. Verify proper function of these components prior to proceeding to the Hydraulic/Mechanical Routine listed.

   THEN BEGIN with the Electrical Routine, if indicated. Follow the reference or action required statements. Always perform the On-Board Diagnostic Tests as required. NEVER SKIP STEPS. Service as required. If the concern is still present after electrical diagnosis, then proceed to the Hydraulic/Mechanical Routine listed.

5. The Hydraulic/Mechanical Routines list possible hydraulic or mechanical components that could cause the concern. These components are listed in the removal sequence and by most likely cause. You must inspect all components listed to ensure proper repair.

Diagnosis by Symptom Index

DIAGNOSIS BY SYMPTOM INDEX

TITLE	ROUTINES
	ELECTRICALa	MECHANICAL HYDRAULIC
Engagement Concerns
No Forward	201	301
No Reverse	202	302
Harsh Reverse	203	303
Harsh Forward	204	304
Delayed/Soft Reverse	205	305
Delayed/Soft Forward	206	306
Shift Concerns
Some/All Shifts Missing	210	310
Timing Concerns
—Early/Late	211	311
—Erratic/Hunting	212	312
Feel
—Soft/Slipping	213	313
—Harsh	214	314
No 1st Gear, Engages in Higher Gear	215	315
No Manual 1st Gear	216	316
No Manual 2nd Gear	217	317
Torque Converter Operation Concerns
No Apply	240	340
Always Applied/Stalls Vehicle	241	341
Cycling/Shudder/Chatter	242	342
Other Concerns
No Engine Braking in 2nd Gear, Manual 2nd or Manual 1st Position	250	350
Shift Lever Efforts High	251	351
External Leaks	252	352
Poor Vehicle Performance	253	353
Noise/Vibration—Forward or Reverse	254	354
Engine Will Not Crank	255	355
No PARK Range	256	356
Transmission Overheating	257	357
Reference:
Pressure Chart	—	401
Band/Clutch Application Chart	—	601
Solenoid Operation Chart	—	701

Diagnostic Routines

Engagement Concerns: No Forward

Possible Component		Reference/Action
201 — ELECTRICAL ROUTINE
	· No Electrical Concerns
301 — HYDRAULIC/MECHANICAL ROUTINE
Fluid
	· Improper level	· Adjust fluid to proper level.
	· Condition	· Inspect as outlined under Fluid Condition Check.
Shift Linkage
	· Damaged, misadjusted	· Inspect and service as required. Verify linkage adjustment as outlined. After servicing linkage, verify TR sensor is properly adjusted. Refer to In-Vehicle Service.
Improper Pressures
	· Low forward clutch pressure, low line pressure	· Check pressure at line and forward clutch tap. Refer to Reference: Pressure Chart No. 401 for specification. If pressures are low, check the following possible components: fluid filter and seal assembly, main controls, pump assembly, forward clutch assembly.
Oil Filter and Seal Assembly
	· Plugged, damaged	· Replace filter and seal assembly.
	· Filter seal damaged
Main Controls
	· 3-4 shift valve, main regulator valve, manual valve — stuck, damaged	· Inspect for damage. Service as required.
	· Bolts not tightened to specification	· Tighten bolts to specification.
	· Gaskets damaged	· Inspect gasket for damage and replace.
	· 2-3 accumulator and seals damaged	· Inspect piston, seals and bore for damage. Service as required.
Pump Assembly
	· Bolts not tightened to specification	· Tighten bolts to specification.
	· Porosity/cross leaks and ball missing or leaking, plugged hole	· Inspect for porosity and leaks. Service as required.
	· No. 3 and No. 4 seal rings damaged	· Inspect seals for damage. Service as required.
	· Gaskets damaged	· Inspect for damage and replace.
Forward Clutch Assembly
	· Seals, piston damaged	· Inspect seals for damage. Service as required.
	· Check balls damaged, missing, mislocated, not seating properly	· Inspect for mislocation, poor seating, damage. Replace cylinder as required.
	· Friction elements damaged or worn	· Check for abnormal wear, damage. Service as required.
Planetary One-Way Clutch Assembly
	· Worn, damaged or assembled wrong	· Inspect for damage. Service as required.
Output Shaft
	· Damaged	· Inspect for damage. Service as required.

Engagement Concerns: No Reverse

Possible Component		Reference/Action
202 — ELECTRICAL ROUTINE
	· No Electrical Concerns
302 — HYDRAULIC/MECHANICAL ROUTINE
Fluid
	· Improper level	· Adjust fluid to proper level.
	· Condition	· Inspect as outlined under Fluid Condition Check.
Shift Linkage
	· Damaged or out of adjustment	· Inspect and service as required. Verify linkage adjustment as outlined. After servicing linkage, verify that the TR sensor is properly adjusted. Refer to In-Vehicle Service.
Improper Pressures
	· Low reverse clutch pressure, low reverse band pressure, low line pressure	· Check pressure at line pressure tap. Refer to Reference: Pressure Chart No. 401 for specifications. If pressures are low, check the following possible components: fluid filter and seal assembly, main controls, reverse servo, pump assembly, reverse clutch assembly.
Oil Filter and Seal Assembly
	· Plugged, damaged	· Replace filter and seal assembly.
Main Controls
	· No. 6 shuttle ball, manual valve, main regulator valve, 1-2 accumulator seals stuck or damaged	· Inspect for damage. Service as required.
	· Loose bolts	· Tighten bolts to specification.
	· Gasket damaged	· Inspect for damage and replace.
Reverse Servo
	· Seals (piston and cover) damaged	· Inspect for damage. Service as required.
	· Servo cover retaining ring damaged	· Inspect for damage. Service as required.
	· Anchor pins (case) damaged	· Inspect for damage. Service as required.
Pump Assembly
	· Loose bolts	· Tighten bolts to specification.
	· Porosity/cross-leaks/ball missing or leaking, plugged hole	· Inspect pump assembly. Replace as required.
	· Gasket damaged	· Inspect for damage and replace.
	· No. 1 and 2 seal rings damaged	· Inspect for damage. Service as required.
Reverse Clutch Assembly
	· Seals, piston damaged	· Inspect for damage. Service as required.
	· Check ball missing or damaged	· Inspect for damage. Service as required.
	· Friction elements damaged or worn	· Inspect for damage. Service as required.
Reverse Band
	· Band, servo, anchor pins damaged or worn	· Inspect for damage. Service as required.

Engagement Concerns: Harsh Reverse

Possible Component		Reference/Action
203 — ELECTRICAL ROUTINE
Powertrain Control System
	· Electrical inputs/outputs, vehicle wiring harnesses, PCM, TFT sensor, EPC solenoid	· Run Self Test. Refer to Powertrain Control/Emissions Diagnosis Manual for diagnosis. Perform engagement test, EPC test and Pinpoint Test B and Pinpoint Test E using Rotunda Transmission Tester 007-00085 or equivalent, as outlined. Service as required. Clear codes, road test and rerun Self Test.
303 — HYDRAULIC/MECHANICAL ROUTINE
Fluid
	· Improper level	· Adjust fluid to proper level.
	· Condition	· Inspect as outlined under Fluid Condition Check.
Shift Linkage
	· Damaged or misadjusted	· Inspect and service as required. Verify linkage adjustment as outlined. After servicing linkage, verify that the TR sensor is properly adjusted. Refer to In-Vehicle Service.
Improper Pressures
	· High line pressure, high EPC pressure	· Check pressure at line and EPC pressure taps. Refer to Reference: Pressure Chart No. 401 for specifications. If high, check the following possible components: main controls, fluid filter and seal assembly.
Oil Filter and Seal Assembly
	· Plugged or damaged	· Replace filter and seal assembly.
	· Filter seal damaged
Main Controls
	· No. 6 Shuttle ball, No. 5 check ball, manual valve, main regulator valve stuck, damaged or missing	· Inspect for damage. Service as required.
	· Bolts not tightened to specification	· Tighten bolts to specification.
	· Gasket damaged	· Inspect for damage and replace.
	· EPC solenoid stuck or damaged	· Inspect for damage, contamination. Perform EPC test in Routine No. 203. Service as required.
Reverse Servo
	· Seals (piston and cover) damaged	· Inspect for damage. Service as required.
	· Servo cover retaining ring assembled wrong
	· Anchor pins (case) damaged
Pump Assembly
	· Bolts not tightened to specification	· Tighten bolts to specification.
	· Porosity/cross-leaks	· Inspect pump assembly. Replace as required.
	· Gasket damaged	· Inspect for damage and replace.
	· No. 1 and No. 2 seal rings damaged	· Inspect for damage. Service as required.
Reverse Clutch Assembly
	· Seals, piston damaged	· Inspect for damage. Service as required.
	· Check ball missing or damaged
	· Friction elements damaged, worn
	· Return spring piston damaged, worn
Reverse Band
	· Band, servo, anchor pin damaged or worn	· Inspect for damage. Service as required.

Engagement Concerns: Harsh Forward

Possible Component		Reference/Action
204 — ELECTRICAL ROUTINE
Powertrain Control System
	· Electrical inputs/outputs, vehicle wiring harnesses, PCM, TFT sensor, EPC solenoid	· Run Self Test. Refer to Powertrain Control/Emissions Diagnosis Manual for diagnosis. Perform engagement test, EPC test and Pinpoint Test B and Pinpoint Test E using Rotunda Transmission Tester 007-00085 or equivalent, as outlined. Service as required. Clear codes, road test and rerun Self Test.
304 — HYDRAULIC/MECHANICAL ROUTINE
Fluid
	· Improper level	· Adjust fluid to proper level.
	· Condition	· Inspect as outlined under Fluid Condition Check.
Improper Pressures
	· High forward clutch pressure, high line pressure, high EPC pressure	· Check pressure at line, EPC and forward pressure taps. Refer to Reference: Pressure Chart No. 401 for specifications. If pressures are high, check the following possible components: main controls, pump assembly.
Main Controls
	· Main regulator valve, 2-3 accumulator seal/retainer stuck, damaged	· Inspect and service as required.
	· Bolts not tightened to specification	· Tighten bolts to specification.
	· Gaskets damaged	· Inspect for damage and replace.
	· EPC solenoid stuck or damaged	· Inspect for damage or contamination. Perform EPC test in Routine No. 204. Service as required.
Pump Assembly
	· Bolts not tightened to specification	· Tighten bolts to specification.
	· Porosity/cross-leaks	· Inspect for porosity/leaks. Replace pump as required.
	· Gaskets damaged	· Inspect for damage and replace.
Forward Clutch Assembly
	· Check balls missing or damaged	· Inspect for mislocation, poor seating, damage. Replace forward clutch cylinder.
	· Friction element damaged or worn	· Inspect for damage. Service as required.
	· Forward clutch wave spring damaged	· Inspect for damage. Service as required.
	· Forward clutch return spring damaged	· Inspect for damage. Service as required.

Engagement Concerns: Delayed/Soft Reverse

Possible Component		Reference/Action
205 — ELECTRICAL ROUTINE
	· No Electrical Concerns
305 — HYDRAULIC/MECHANICAL ROUTINE
Fluid
	· Improper level	· Adjust fluid to proper level.
	· Condition	· Inspect as outlined under Fluid Condition Check.
Shift Linkage
	· Damaged, misadjusted	· Inspect and service as required. Verify linkage adjustment as outlined. After servicing linkage, verify that the TR sensor is properly adjusted. Refer to In-Vehicle Service.
Improper Pressures
	· Low reverse clutch pressure, low reverse band pressure, low line pressure	· Check pressure at line tap. Refer to Reference: Pressure Chart No. 401 for specifications. If pressures are low, check the following possible components: main controls, pump assembly, reverse clutch assembly, reverse servo.
Oil Filter and Seal Assembly
	· Plugged, damaged	· Replace filter and seal assembly.
	· Filter seal damaged
Main Controls
	· No. 6 shuttle ball, 1-2 accumulator seals, manual valve, main regulator valve stuck or damaged	· Inspect for damage. Service as required.
	· Bolts not tightened to specification	· Tighten bolts to specification.
	· Gaskets damaged	· Inspect for damage and replace.
Reverse Servo
	· Seals (piston and cover) damaged	· Inspect for damage. Service as required.
	· Servo cover retaining ring assembled wrong
Pump Assembly
	· Bolts not tightened to specification	· Tighten bolts to specification.
	· Porosity/cross-leaks/ball missing or leaking	· Inspect pump assembly. Replace as required.
	· Gaskets damaged	· Inspect for damage and replace.
	· No. 1 and No. 2 seal rings damaged	· Inspect for damage. Service as required.
Reverse Clutch Assembly
	· Seals, piston damaged	· Inspect for damage. Service as required.
	· Check ball missing or damaged
	· Friction elements damaged, worn
	· Return spring and piston damaged, worn
Reverse Band
	· Damaged, worn	· Inspect for damage. Service as required.

Engagement Concerns: Delayed/Soft Forward

Possible Component		Reference/Action
206 — ELECTRICAL ROUTINE
	· No Electrical Concerns
306 — HYDRAULIC/MECHANICAL ROUTINE
Fluid
	· Improper level	· Adjust fluid to proper level.
	· Condition	· Inspect as outlined under Fluid Condition Check.
Shift Linkage
	· Damaged, misadjusted	· Inspect and service as required. Verify linkage adjustment as outlined. After servicing linkage, verify that the TR sensor is properly adjusted. Refer to In-Vehicle Service.
Improper Pressures
	· Low forward clutch pressure, low line pressure, low EPC pressure	· Check pressure at line, forward clutch and EPC taps. Refer to Reference: Pressure Chart No. 401 for specifications. If pressures are low, check the following possible components: fluid filter and seal assembly, main controls and pump assembly.
Oil Filter and Seal Assembly
	· Plugged, damaged	· Replace filter and seal assembly.
	· Filter seal damaged
Main Controls
	· 3-4 shift valve, main regulator valve stuck or damaged	· Inspect and service as required.
	· Bolts not tightened to specification	· Tighten bolts to specification.
	· Gaskets damaged	· Inspect for damage and replace.
	· 2-3 or 1-2 accumulator, seals, bore damaged or stuck	· Inspect for damage. Service as required.
Pump Assembly
	· Bolts not tightened to specification	· Tighten bolts to specification.
	· Porosity/cross-leaks	· Inspect pump assembly. Replace as required.
	· Gaskets damaged	· Inspect for damage and replace.
	· No. 3, No. 4 seal rings damaged	· Inspect for damage. Service as required.
Forward Clutch Assembly
	· Seals, piston damaged	· Inspect for damage. Service as required.
	· Check balls missing, damaged	· Inspect for mislocation, poor seating, damage. Replace cylinder as required.
	· Friction elements damaged, worn	· Check for damage. Service as required.

Shift Concerns: Some or All Shifts Missing

Possible Component		Reference/Action
210 — ELECTRICAL ROUTINE
Powertrain Control System
	Electrical inputs/outputs, vehicle wiring harnesses, powertrain control module, shift solenoids, output shaft speed sensor (OSS), TR sensor	· Run Self Test. Refer to Powertrain Control/Emissions Diagnosis Manual for diagnosis. Perform Pinpoint Test A, Pinpoint Test D and Pinpoint Test F using Rotunda Transmission Tester 007-00085 and Transmission Range (TR) Sensor Cable "C" (MLPS Manual Lever Position Sensor Cable) 007-00086 or equivalents as outlined. Service as required. Clear codes, road test and rerun Self Test.
310 — HYDRAULIC/MECHANICAL ROUTINE
Fluid
	Improper level	· Adjust fluid to proper level.
	Condition	· Inspect as outlined under Fluid Condition Check.
Shift Linkage, TR Sensor
	Damaged, misadjusted	· Inspect and service as required. Verfiy linkage adjustment as outlined. After servicing linkage, verify that the TR sensor is properly adjusted. Refer to In-Vehicle Service.
		· Refer to the following shift routine(s) for further diagnosis: Shift 1-2, Routine 220/320 Shift 2-3, Routine 221/321 Shift 3-4, Routine 222/322 Shift 4-3, Routine 223/323 Shift 3-2, Routine 224/324 Shift 2-1, Routine 225/325

Shift Concerns: Shift Timing — Early/Late

Possible Component		Reference/Action
211 — ELECTRICAL ROUTINE
Powertrain Control System
	· Electrical inputs/outputs, vehicle wiring harnesses, PCM, shift solenoids, EPC solenoid, TFT sensor, OSS	· Run Self Test. Refer to Powertrain Control/Emissions Diagnosis Manual for diagnosis. Perform Pinpoint Test A, Pinpoint Test B, Pinpoint Test E and Pinpoint Test F using Rotunda Transmission Tester 007-00085 or equivalent, as outlined. Service as required. Clear codes, road test and rerun Self-Test.
311 — HYDRAULIC/MECHANICAL ROUTINE
Other
	· Tire size change, axle ratio change	· Verify vehicle has original equipment. Refer to Certification Label and Safety Standard Certification Label. Changes in tire size, axle ratio will affect shift timing.
Fluid
	· Improper level	· Adjust fluid to proper level.
	· Condition	· Inspect as outlined under Fluid Condition Check.
Improper Pressures
	· Line pressure, EPC pressure	· Check pressure at line and EPC taps. Refer to Reference: Pressure Chart No. 401 for specifications. If not OK, check the main controls. If OK, refer to the following shift routine(s) for further diagnosis: Shift 1-2, Routine 320 Shift 2-3, Routine 321 Shift 3-4, Routine 322 Shift 4-3, Routine 323 Shift 3-2, Routine 324 Shift 2-1, Routine 325
Main Controls
	· EPC solenoid, stuck or damaged hydraulically or mechanically	· Inspect for damage, contamination. Perform EPC tests in Routine No. 211. Service as required.
	· Valves, accumulators, seals stuck or damaged or assembled wrong	· Inspect for damage. Service as required.
	· Gaskets damaged	· Inspect for damage and replace.
	· Solenoid screen (in valve body) blocked or damaged	· Clean or replace screen.

Shift Concerns: Timing — Erratic/Hunting

Possible Component		Reference/Action
212 — ELECTRICAL ROUTINE
Powertrain Control System
	Electrical inputs/outputs, vehicle wiring harnesses, PCM, shift solenoids, TCC solenoid, TR sensor, OSS	· Run Self Test. Refer to Powertrain Control/Emissions Diagnosis Manual for diagnosis. Perform Pinpoint Test A, Pinpoint Test C, Pinpoint Test D and Pinpoint Test F using Rotunda Transmission Tester 007-00085 and Rotunda Transmission Range (TR) Sensor Cable "C" (MLPS Manual Lever Position Sensor Cable) 007-00086 or equivalents, as outlined. Service as required. Clear codes, road test and rerun Self Test.
312 — HYDRAULIC/MECHANICAL ROUTINE
Fluid
	Improper level	· Adjust fluid to proper level.
	Condition	· Inspect as outlined under Fluid Condition Check.
Main Controls
	Valves, accumulators, seals, assembled wrong, stuck or damaged	· Inspect for damage. Service as required.
	Gaskets damaged	· Inspect for damage and replace.
	Solenoid screen (in valve body) blocked or damaged	· Clean or replace screen.
Torque Converter Clutch
	Torque converter	· Refer to Hydraulic/Mechanical Routine 342, Converter Cycling/Shudder/Chatter.
		· Refer to the following shift routine(s) for further diagnosis: Shift 1-2, Routine 320 Shift 2-3, Routine 321 Shift 3-4, Routine 322 Shift 4-3, Routine 323 Shift 3-2, Routine 324 Shift 2-1, Routine 325

Shift Concerns: Feel — Soft/Slipping

Possible Component		Reference/Action
213 — ELECTRICAL ROUTINE
Powertrain Control System
	· Electrical inputs/outputs, vehicle wiring harnesses, PCM, EPC solenoid, OSS	· Run Self Test. Refer to Powertrain Control/Emissions Diagnosis Manual for diagnosis. Perform Pinpoint Test E and Pinpoint Test F using Rotunda Transmission Tester 007-00085 or equivalent, as outlined. Service as required. Clear codes, road test and rerun Self Test.
313 — HYDRAULIC/MECHANICAL ROUTINE
Fluid
	· Improper level	· Adjust fluid to proper level.
	· Condition	· Inspect as outlined under Fluid Condition Check.
Improper Pressures
	· Low line pressure, low EPC pressure	· Check pressures at line and EPC taps. Refer to Reference: Pressure Chart No. 401 for specifications. If pressures are low or all shifts are soft/slipping, go to Main Controls. If pressures are OK and a specific shift is soft/slipping, refer to the following routine(s) for further diagnosis: Shift 1-2, Routine 320 Shift 2-3, Routine 321 Shift 3-4, Routine 322 Shift 4-3, Routine 323 Shift 3-2, Routine 324 Shift 2-1, Routine 325
Main Controls
	· 1-2 accumulator, main regulator valve, overdrive servo regulator valve stuck, damaged or assembled wrong	· Inspect for damage. Service as required.
	· EPC solenoid stuck or damaged	· Inspect for damage and contamination. Perform EPC tests in Routine No. 213. Service as required.

Shift Concerns: Feel — Harsh

Possible Component		Reference/Action
214 — ELECTRICAL ROUTINE
Powertrain Control System
	· Electrical inputs/outputs, vehicle wiring harnesses, PCM, EPC solenoid, OSS	· Run Self Test. Refer to Powertrain Control/Emissions Diagnosis Manual for diagnosis. Perform Pinpoint Test E and Pinpoint Test F using Rotunda Transmission Tester 007-00085 or equivalent, as outlined. Service as required. Clear codes, road test and rerun Self Test.
314 — HYDRAULIC/MECHANICAL ROUTINE
Fluid
	· Improper level	· Adjust fluid to proper level.
	· Condition	· Inspect as outlined under Fluid Condition Check.
Improper Pressures
	· High line pressure, high EPC pressure	· Check pressures at line and EPC taps. Refer to Reference: Pressure Chart No. 401 for specifications. If pressures are high or all shifts are harsh, go to Main Controls. If pressures are OK and a specific shift is harsh, refer to the following shift routine(s) for further diagnosis: Shift 1-2, Routine 320 Shift 2-3, Routine 321 Shift 3-4, Routine 322 Shift 4-3, Routine 323 Shift 3-2, Routine 324 Shift 2-1, Routine 325
Main Controls
	· 1-2 accumulator, main regulator valve, overdrive servo regulator valve stuck, damaged or assembled wrong	· Inspect for damage. Service as required.
	· EPC solenoid stuck or damaged	· Inspect for damage, contamination. Perform EPC tests in Routine 214. Service as required.

Shift Concerns: No 1st Gear, Engages In Higher Gear

Possible Component		Reference/Action
215 — ELECTRICAL ROUTINE
Powertrain Control System
	· Electrical inputs/outputs, vehicle wiring harnesses, PCM, shift solenoids, TR sensor	· Run Self Test. Refer to Powertrain Control/Emissions Diagnosis Manual for diagnosis. Perform Pinpoint Test A and Pinpoint Test D using Rotunda Transmission Tester 007-00085 and Rotunda Transmission Range (TR) Sensor Cable "C" (MLPS Manual Lever Position Sensor Cable) 007-00086 or equivalents, as outlined. Service as required. Clear codes, road test and rerun Self Test.
315 — HYDRAULIC/MECHANICAL ROUTINE
Shift Linkage, TR Sensor
	· Damaged or misadjusted	· Inspect and service as required. Verify linkage adjustment as outlined. After servicing linkage, verify that the TR sensor is properly adjusted. Refer to In-Vehicle Service.
Improper Pressures
	· Low reverse clutch pressure, low reverse band pressure, low line pressure	· Check for which pressures are on and refer to Pressures Applied Chart and corresponding routinesa: Forward Off, Intermediate Off, Direct X Forward Off, Intermediate X, Direct Off Forward Off, Intermediate X, Direct X Forward X, Intermediate Off, Direct X Forward X, Intermediate X, Direct Off Forward X, Intermediate X, Direct X Forward X, Intermediate Off, Direct Off
Mechanical
	· Bands, clutches or seals damaged or worn	· Refer to Transmission, Disassembly and Assembly.

Shift Concerns: No Manual 1st Gear

Possible Component		Reference/Action
216 — ELECTRICAL ROUTINE
Powertrain Control System
	· Electrical inputs/outputs, vehicle wiring harnesses, PCM, shift solenoids, TR sensor	· Run Self Test. Refer to Powertrain Control/Emissions Diagnosis Manual for diagnosis. Perform Pinpoint Test A and Pinpoint Test D using Rotunda Transmission Tester 007-00085 and Rotunda Transmission Range (TR) Sensor Cable "C" (MLPS Manual Lever Position Sensor Cable) 007-00086 or equivalents, as outlined. Service as required. Clear codes, road test and rerun Self Test.
316 — HYDRAULIC/MECHANICAL ROUTINE
Shift Linkage, Cable, TR Sensor
	· Damaged or misadjusted	· Inspect and service as required. Verify linkage adjustment as outlined. After servicing linkage, verify that the TR sensor is properly adjusted. Refer to In-Vehicle Service.
Improper Pressures
	· Low reverse clutch pressure, low reverse band pressure, low line pressure, low EPC pressure	· Check pressure at line and EPC pressure taps. Refer to Reference: Pressure Chart No. 401 for specifications. If pressures are low, check the following possible components: fluid filter and seal assembly, main controls, reverse clutch assembly and reverse servo assembly.
Oil Filter and Seal Assembly
	· Plugged or damaged	· Replace filter and seal assembly.
Main Controls
	· No. 6 shuttle ball, manual valve, main regulator valve, low servo modulator valve stuck, damaged or assembled wrong	· Inspect for damage. Service as required.
	· Bolts not tightened to specification	· Tighten bolts to specification.
	· Gaskets damaged	· Inspect for damage and replace.
Reverse Servo
	· Seals (piston and cover) damaged	· Inspect for damage. Service as required.
	· Servo cover retaining ring assembled wrong
	· Anchor pins (case) damaged

Shift Concerns: No Manual 2nd Gear

Possible Component		Reference/Action
217 — ELECTRICAL ROUTINE
Powertrain Control System
	· Electrical inputs/outputs, vehicle wiring harnesses, powertrain control module (PCM), shift solenoids, TR sensor	· Run Self Test. Refer to Powertrain Control/Emissions Diagnosis Manual for diagnosis. Perform Pinpoint Test A and Pinpoint Test D using Rotunda Transmission Tester 007-00085 and Rotunda Transmission Range (TR) Sensor Cable "C" (MLPS Manual Lever Position Sensor Cable) 007-00086 or equivalents, as outlined. Service as required. Clear codes, road test and rerun Self Test.
317 — HYDRAULIC/MECHANICAL ROUTINE
Shift Linkage, Cable, TR Sensor
	· Damaged, misadjusted	· Inspect and service as required. Verify linkage adjustment as outlined. After servicing linkage, verify that the TR sensor is properly adjusted. Refer to In-Vehicle Service.
Main Controls
	· 3-4 shift valve, 1-2 and 2-3 shift valve, 3-4 capacity modulator valve stuck, damaged or assembled wrong	· Inspect for damage. Service as required.
	· Bolts not tightened to specification	· Tighten bolts to specification.
	· Gaskets damaged	· Inspect for damage and replace.

Shift Concerns: 1-2 Shift (Automatic)

Possible Component		Reference/Action
220 — ELECTRICAL ROUTINE
Powertrain Control System
	· Electrical inputs/outputs, vehicle wiring harnesses, PCM, shift solenoids, OSS	· Run Self Test. Refer to Powertrain Control/Emissions Diagnosis Manual for diagnosis. Perform Pinpoint Test A and Pinpoint Test F using Rotunda Transmission Tester 007-00085 or equivalent, as outlined. Service as required. Clear codes, road test and rerun Self Test.
320 — HYDRAULIC/MECHANICAL ROUTINE
Shift Linkage, TR Sensor
	· Damaged or misadjusted	· Inspect and service as required. Verify linkage adjustment as outlined. After servicing linkage, verify that the TR sensor is properly adjusted. Refer to In-Vehicle Service.
Improper Pressures
	· Intermediate clutch pressure, line pressure	· Check pressure at line and intermediate clutch taps. Refer to Reference: Pressure Chart No. 401 for specifications. If not OK, check the main controls.
Main Controls
	· 1-2 shift valve, 1-2 accumulator valve stuck or damaged	· Inspect for damage. Service as required.
	· Bolts not tightened to specification	· Tighten bolts to specification.
	· SS1 malfunction	· Activate solenoid using transmission tester. If solenoid operation cannot be felt when placing hand on solenoid, replace solenoid. Inspect O-rings for damage. Service as required.
	· Gasket damaged	· Inspect for damage and replace.
	· No. 8 ball not seating	· Inspect for damage and service as required.
Pump
	· Porosity/cross-leaks, balls missing, damaged or leaking	· Inspect for porosity/leaks, balls missing. Replace pump as required.
	· Gasket damaged	· Inspect for damage and replace.
Intermediate Clutch Assembly
	· Seals damaged	· Inspect for damage. Service as required.
	· Piston damaged	· Inspect for damage. Service as required.
	· Friction elements damaged or worn	· Inspect for damage. Service as required.
Intermediate One-Way Clutch Assembly
	· Not holding or damaged	· Inspect for damage. Service as required.
Planetary One-Way Clutch Assembly
	· Not overrunning or damaged	· Inspect for damage. Service as required.

Shift Concerns: 2-3 Shift (Automatic)

Possible Component		Reference/Action
221 — ELECTRICAL ROUTINE
Powertrain Control System
	· Electrical inputs/outputs, vehicle wiring harnesses, PCM, shift solenoids, OSS	· Run Self Test. Refer to Powertrain Control/Emissions Diagnosis Manual for diagnosis. Perform Pinpoint Test A and Pinpoint Test F using Rotunda Transmission Tester 007-00085 or equivalent, as outlined. Service as required. Clear codes, road test and rerun Self Test.
321 — HYDRAULIC/MECHANICAL ROUTINE
Shift Linkage
	· Damaged or misadjusted	· Inspect and service as required. Verify linkage adjustment as outlined. After servicing linkage, verify that the TR sensor is properly adjusted. Refer to In-Vehicle Service.
Improper Pressures
	· Direct clutch pressure	· Check pressure at direct clutch tap. Refer to Reference: Pressure Chart No. 401 for specifications. If not OK, check the main controls.
Main Controls
	· 2-3 shift valve, check ball No. 9 or No. 3, solenoid pressure regulator valve, 2-3 modulator valve, damaged or assembled wrong	· Inspect for damage. Service as required.
	· Bolts not tightened to specification	· Tighten bolts to specification.
	· SS2 malfunction	· Activate solenoid using transmission tester. If solenoid operation cannot be felt when placing hand on solenoid, replace solenoid. Inspect O-rings for damage. Service as required.
	· Gaskets damaged	· Inspect for damage and replace.
	· Output shaft seals damaged or cup plug leaking or missing	· Inspect for damage and service as required.
	· 2-3 accumulator damaged or stuck	· Inspect piston seal and bore for damage. Service as required.
	· Solenoid screen (in main control) blocked or damaged	· Clean or replace screen.
Intermediate One-Way Clutch Assembly
	· Not overrunning or damaged	· Inspect for damage. Service as required.
Output Shaft
	· Seal rings damaged	· Inspect for damage. Service as required.
	· Cup plug damaged or missing
Direct Clutch Assembly
	· Seals or piston damaged	· Inspect for damage. Service as required.
	· Friction elements worn or damaged	· Inspect for damage. Service as required.
	· Check ball not seating	· Inspect for damage. Service as required.
	· Return spring assembly damaged	· Inspect for damage. Service as required.
Case
	· Output shaft rear seals leaking or damaged	· Inspect for damage. Service as required. Inspect case for damaged seal area. If damaged, replace case.

Shift Concerns: 3-4 Shift (Automatic)

Possible Component		Reference/Action
222 — ELECTRICAL ROUTINE
Powertrain Control System
	· Electrical inputs/outputs, vehicle wiring harnesses, PCM, shift solenoids, OSS, transmission control switch (TCS)	· Run Self Test. Refer to Powertrain Control/Emissions Diagnosis Manual for diagnosis. Perform Pinpoint Test A and Pinpoint Test F using Rotunda Transmission Tester 007-00085 or equivalent, as outlined. Service as required. Clear codes, road test and rerun Self Test.
322 — HYDRAULIC/MECHANICAL ROUTINE
Shift Linkage, TR Sensor
	· Damaged or misadjusted	· Inspect and service as required. Verify linkage adjustment as outlined. After servicing linkage, verify that the TR sensor is properly adjusted. Refer to In-Vehicle Service.
Improper Pressures
	· Forward clutch pressure, direct clutch pressure, line pressure	· Check line, direct and forward clutch pressures at appropriate taps. Refer to Reference: Pressure Chart No. 401 for specifications. If pressures are out of specification, check main controls.
Main Controls
	· 3-4 shift valve, solenoid pressure regulator valve, OD servo regulator, 3-4 capacity modulator valve, 1-2 and 2-3 shift valves stuck, damaged or assembled wrong	· Inspect for damaged and service as required.
	· Bolts not tightened to specification	· Tighten bolts to specification.
	· SS1 or SS2 malfunction	· Activate solenoid using transmission tester. If solenoid operation cannot be felt when placing hand on solenoid, replace solenoid. Inspect O-rings for damage. Service as required.
	· Gaskets damaged	· Inspect for damage and replace.
	· OD servo, rod and piston cushion spring or seals damaged	· Inspect for damage. Service as required.
	· Nos. 2, 4, 7 and 9 check balls damaged or missing	· Inspect for damage. Service as required.
	· Solenoid screen (in main control) blocked or damaged	· Clean or replace screen.
Pump
	· Porosity/cross-leaks, balls missing, damaged or leaking	· Inspect for porosity/leaks, balls missing. Replace pump as required.
	· Gaskets damaged	· Inspect for damage. Replace as required.
OD Band
	· OD band and reverse clutch drum assembly damaged, worn or assembled wrong	· Inspect for damage and service as required.
	· Intermediate one-way clutch assembly damaged	· Inspect for damage. Service as required.
Forward Clutch Assembly
	· Seals or piston damaged	· Inspect for damage. Service as required.
	· Friction elements worn or damaged	· Inspect for damage. Service as required.
	· Check ball stuck, damaged or not seating properly	· Inspect for damage. Service as required.
Input Shaft
	· Seals damaged	· Inspect for damage. Service as required.

Shift Concerns: 4-3 Shift (Automatic)

Possible Component		Reference/Action
223 — ELECTRICAL ROUTINE
Powertrain Control System
	· Electrical inputs/outputs, vehicle wiring harnesses, PCM, shift solenoids, transmission control switch (TCS)	· Run Self Test. Refer to Powertrain Control/Emissions Diagnosis Manual for diagnosis. Perform Pinpoint Test A using Rotunda Transmission Tester 007-00085 or equivalent, as outlined. Service as required. Clear codes, road test and rerun Self Test.
323 — HYDRAULIC/MECHANICAL ROUTINE
Improper Pressures
	· Forward clutch pressure, line pressure	· Check line and forward clutch at pressure taps. Refer to Reference: Pressure Chart No. 401 for specifications. If out of specification, check main controls.
Main Controls
	· 3-4 shift valve, solenoid pressure regulator valve, OD servo regulator, 3-4 capacity modulator, 1-2, 2-3 shift valves stuck, damaged or assembled wrong	· Inspect for damage. Service as required.
	· Check balls No. 2, No. 7, No. 9 damaged, missing or not seating properly	· Inspect for damage. Service as required.
	· Bolts not tightened to specification	· Tighten bolts to specification.
	· SS1 malfunction	· Activate solenoid using transmission tester. If solenoid operation cannot be felt when placing hand on solenoid, replace solenoid. Inspect O-rings for damage. Service as required.
	· Gaskets damaged	· Inspect for damage and replace.
	· OD servo, seal, rod damaged	· Inspect for damage. Service as required.
	· Solenoid screen (in main control) blocked or damaged	· Clean or replace screen.
Pump
	· Porosity/cross-leaks, balls missing, damaged or leaking	· Inspect for porosity/leaks, balls missing. Replace pump as required.
	· Seal rings damaged	· Inspect for damage. Service as required.
	· Gaskets damaged	· Inspect for damage and replace.
Overdrive Band
	· OD band and reverse clutch assembly damaged, worn or assembled wrong	· Inspect for damage. Service as required.
	· Intermediate one-way clutch assembly damaged	· Inspect for damage. Service as required.
Foward Clutch Assembly
	· Seals or piston damaged	· Inspect for damage. Service as required.
	· Friction elements damaged, worn	· Inspect for damage. Service as required.
	· Check ball stuck, damaged or not seating properly	· Inspect for damage. Service as required.
	· Forward clutch piston and return spring damaged	· Inspect for damage. Service as required.
Input Shaft
	· Seals damaged	· Inspect for damage. Service as required.

Shift Concerns: 3-2 Shift (Automatic)

Possible Component		Reference/Action
224 — ELECTRICAL ROUTINE
Powertrain Control System
	· Electrical inputs/outputs, vehicle wiring harnesses, PCM, shift solenoids	· Run Self Test. Refer to Powertrain Control/Emissions Diagnosis Manual for diagnosis. Perform Pinpoint Test A using Rotunda Transmission Tester 007-00085 or equivalent, as outlined. Service as required. Clear codes, road test and rerun Self Test.
324 — HYDRAULIC/MECHANICAL ROUTINE
Improper Pressures
	· Direct clutch	· Check pressure at direct clutch tap. Refer to Reference: Pressure Chart No. 401 for specifications. If not within specification, check main controls.
Main Controls
	· 2-3 shift valve stuck or damaged	· Inspect for damage. Service as required
	· Check balls damaged or missing	· Inspect for damage. Service as required.
	· Bolts not tightened to specification	· Tighten bolts to specification.
	· SS2 malfunction	· Activate solenoid using transmission tester. If solenoid operation cannot be felt when placing hand on solenoid, replace solenoid. Inspect O-rings for damage. Service as required.
	· Gaskets damaged	· Inspect for damage and replace.
Intermediate One-Way Clutch
	· Not holding or damaged	· Inspect for damage. Service as required.
Direct Clutch Assembly
	· Seals or piston damaged	· Inspect for damage. Service as required.
	· Friction element damaged, worn	· Inspect for damage. Service as required.
	· Check ball stuck, damaged or not seating properly	· Inspect for damage. Service as required.

Shift Concerns: 2-1 Shift (Automatic)

Possible Component		Reference/Action
225 — ELECTRICAL ROUTINE
Powertrain Control System
	· Electrical inputs/outputs, vehicle wiring harnesses, PCM, shift solenoids	· Run Self Test. Refer to Powertrain Control/Emissions Diagnosis Manual for diagnosis. Perform Pinpoint Test A using Rotunda Transmission Tester 007-00085 or equivalent, as outlined. Service as required. Clear codes, road test and rerun Self Test.
325 — HYDRAULIC/MECHANICAL ROUTINE
Improper Pressures
	· Intermediate clutch	· Check pressure at intermediate clutch tap. Refer to Reference: Pressure Chart No. 401 for specifications. If not within specifications, check main controls and pump.
Main Controls
	· 1-2 shift valve, 1-2 accumulator solenoid pressure regulator valve stuck, damaged or assembled wrong	· Inspect for damage. Service as required.
	· Bolts not tightened to specification	· Tighten bolts to specification.
	· SS1 malfunction	· Activate solenoid using transmission tester. If solenoid operation cannot be felt when placing hand on solenoid, replace solenoid. Inspect O-rings for damage; service as required.
	· Gaskets damaged	· Inspect for damage and replace.
Pump
	· Gaskets damaged	· Inspect for damage and replace.
	· Porosity/cross-leaks	· Inspect for leak/porosity. Replace pump as required.
Intermediate Clutch Assembly
	· Piston damaged	· Inspect for damage. Service as required.
	· Friction elements damaged, worn	· Inspect for damage. Service as required.
	· End clearance improper	· Inspect and correct as outlined under Transmission in the Assembly portion of this section.
Intermediate One-Way Clutch
	· Damaged	· Inspect for damage. Service as required.
Planetary One-Way Clutch
	· Not holding or damaged	· Inspect for damage. Service as required.

Torque Converter Operation Concerns: No Apply

Possible Component		Reference/Action
240 — ELECTRICAL ROUTINE
Powertrain Control System
	· Electrical inputs/outputs, vehicle wiring harnesses, PCM, torque converter clutch (TCC) solenoid, TFT sensor, OSS	· Run Self Test. Refer to Powertrain Control/Emissions Diagnosis Manual for diagnosis. Perform Pinpoint Test B, Pinpoint Test C, and Pinpoint Test F using Rotunda Transmission Tester 007-00085 or equivalent, as outlined. Service as required. Clear codes, road test and rerun Self Test.
340 — HYDRAULIC/MECHANICAL ROUTINE
Shift Linkage
	· Damaged, misadjusted	· Inspect and service as required. Verify linkage adjustment as outlined. After servicing linkage, verify that the TR sensor is properly adjusted. Refer to In-Vehicle Service.
Improper Pressures
	· Low line pressure, low EPC pressure	· Check pressure at line and EPC taps. Refer to Reference: Pressure Chart No. 401 for specifications. If pressure is low, check EPC and main regulator valve. If within specification, check main controls.
Main Controls
	· Solenoid pressure regulator valve, manual valve, bypass clutch control valve and plunger, converter pressure limit valve, drain back valve stuck, damaged or assembled wrong	· Inspect for damage and service as required.
	· Bolts not tightened to specification	· Tighten bolts to specification.
	· Solenoid screen (in valve body) blocked or damaged	· Clean or replace screen.
	· TCC solenoid malfunction	· Activate solenoid using transmission tester. If solenoid operation cannot be felt when placing hand on solenoid, replace solenoid. Inspect O-rings for damage. Service as required.
	· Gaskets damaged	· Inspect for damage and replace.
Pump Assembly
	· Bolts not tightened to specification	· Tighten bolts to specification.
	· Porosity/cross-leaks, balls leaking	· Inspect for porosity/leaks, ball missing. Replace pump as required.
	· Gaskets damaged	· Inspect for damage and replace.
Input Shaft
	· Seals damaged	· Inspect for damage. Service as necessary.
Torque Converter Assembly
	· Leakage, friction material damaged, internal seals damaged	· Inspect torque converter as outlined. Service or replace as required.

Torque Converter Operation Concerns: Always Applied/Stalls Vehicle

Possible Component		Reference/Action
241 — ELECTRICAL ROUTINE
Powertrain Control System
	· Electrical inputs/outputs, vehicle wiring harnesses, PCM, torque converter clutch (TCC) solenoid, TFT sensor	· Run Self Test. Refer to Powertrain Control/Emissions Diagnosis Manual for diagnosis. Perform Pinpoint Test B and Pinpoint Test C using Rotunda Transmission Tester 007-00085 or equivalent, as outlined. Service as required. Clear codes, road test and rerun Self Test.
341 — HYDRAULIC/MECHANICAL ROUTINE
Main Control
	· Drain back valve, torque converter clutch and plunger stuck, damaged or assembled wrong	· Inspect for damage and service as required.
	· Bolts not tightened to specification	· Tighten bolts to specification.
	· TCC solenoid malfunction	· Activate solenoid using transmission tester. If solenoid operation cannot be felt when placing hand on solenoid, replace solenoid. Inspect O-rings for damage. Service as required.
	· No. 7 ball improper seating	· Inspect for damage. Service as required.
	· Gaskets damaged	· Inspect for damage and replace.
Pump Assembly
	· Bolts not tightened to specification	· Tighten bolts to specification.
	· Ball missing, leaking, porosity/cross-leaks	· Inspect for porosity/leaks, balls missing. Replace pump as required.
	· Gaskets damaged	· Inspect for damage and replace.
Input Shaft
	· Seals damaged	· Inspect for damage. Service as required.
Torque Converter Assembly
	· No end clearance	· Inspect converter as outlined and replace as required.
	· Piston plate damaged or stuck to cover	· If cover is heat-stained, replace converter.

Torque Converter Operation Concerns: Cycling/Shudder/Chatter

Possible Component		Reference/Action
242 — ELECTRICAL ROUTINE
Powertrain Control System
	Electrical inputs/outputs, vehicle wiring harnesses, PCM, torque converter clutch (TCC) solenoid, OSS	· Run Self Test. Refer to Powertrain Control/Emissions Diagnosis Manual for diagnosis. Perform Pinpoint Test C and Pinpoint Test F using Rotunda Transmission Tester 007-00085 or equivalent, as outlined. Service as required. Clear codes, road test and rerun Self Test.
342 — HYDRAULIC/MECHANICAL ROUTINE
Fluid Condition
		· Inspect fluid condition. If burnt, drain fluid and converter. Replace fluid and filter assembly. Bring vehicle to normal operating temperature. Perform Transmission Drive Cycle Test as outlined. Perform Self Test. If condition still exists, continue diagnostics.
Main Controls
	Solenoid pressure regulator valve, No. 7 check ball, bypass clutch control valve and plunger, converter pressure limit valve stuck, damaged or assembled wrong	· Inspect for damage. Service as required.
	Bolts not tightened to specification	· Tighten bolts to specification.
	Solenoid screen (in valve body) blocked or damaged	· Clean or replace screen.
	TCC solenoid malfunction	· Activate solenoid using transmission tester. If solenoid operation cannot be felt when placing hand on solenoid, replace solenoid. Inspect O-rings for damage. Service as required.
	Gaskets damaged	· Inspect for damage and replace.
Pump Assembly
	Bolts not tightened to specification	· Tighten bolts to specification.
	Porosity/cross-leaks, balls missing or leaking	· Inspect for porosity/leaks or balls missing. Replace pump as required.
	Gaskets damaged	· Inspect for damage and replace.
Input Shaft
	Seals damaged	· Inspect for damage. Service as required.
Torque Converter
	Excessive end clearance	· Inspect converter as outlined. Replace as required.

Other Concerns: No Engine Braking In 2nd Gear, Manual 2nd or Manual 1st Position

Possible Component		Reference/Action
250 — ELECTRICAL ROUTINE
	· No Electrical Concerns
350 — HYDRAULIC/MECHANICAL ROUTINE
Shift Linkage
	· Damaged or misadjusted	· Inspect and service as required. Verify linkage adjustment as outlined. After servicing linkage, verify that the TR sensor is properly adjusted. Refer to In-Vehicle Service.
Main Controls
	· 3-4 shift valve, 1-2 and 2-3 shift valve, gaskets, 3-4 capacity modulator valve, stuck or damaged or assembled wrong	· Inspect for damage. Service as required.
	· OD servo assembly damaged or stuck	· Inspect cover, piston and seal for damage. Service as required.
Overdrive
	· Reverse band, manual 1st (only) damaged	· Inspect for damage. Service as required.
	· OD band, reverse clutch drum assembly worn or damaged	· Inspect for damage. Service as required.
	· Intermediate one-way clutch assembly damaged	· Inspect for damage. Service as required.
Reverse Band (Manual 1st Only)
	· Damaged or misadjusted	· Inspect for damage. Service as required.

Other Concerns: Shift Lever Efforts High

Possible Component		Reference/Action
251 — ELECTRICAL ROUTINE
	· No Electrical Concerns
351 — HYDRAULIC/MECHANICAL ROUTINE
Shift Linkage, TR Sensor
	· Damaged or misadjusted	· Inspect and service as required. Verify linkage adjustment as outlined. After servicing linkage, verify that the TR sensor is properly adjusted. Refer to In-Vehicle Service.
Manual Lever
	· Retaining pin damaged, nut loose, detent spring bent or damaged or PARK mechanism damaged	· Inspect for damage. Service as required.
Main Controls
	· Manual valve stuck or damaged	· Inspect for damage. Service as required.
	· Bolts not tightened to specification	· Tighten bolts to specification.

Other Concerns: External Leaks

Possible Component		Reference/Action
252 — ELECTRICAL ROUTINE
Powertrain Control System
	· Electrical inputs/outputs, sensor seals leaking (TR, OSS, VSS or transmission connector)	· Inspect for leakage and service as required.
352 — HYDRAULIC/MECHANICAL ROUTINE
Seals, Gaskets
	· Converter, pump, pan, extension housing — gasket/seal, manual lever, fluid level indicator tube	· Locate source of leak. Service as required.
Other
	· Cooler fitting, pressure taps, converter drain plug, band anchor pins, cooler lines, case porosity, case cracked	· Locate source of leak. Service as required.
	· Vent blocked or damaged	· Check vent for damage or blockage. Service as required.

Other Concerns: Poor Vehicle Performance

Possible Component		Reference/Action
253 — ELECTRICAL ROUTINE
Powertrain Control System
	Electrical inputs/outputs, vehicle wiring harnesses, shift solenoids, TR sensor, torque converter clutch (TCC) solenoid, transmission fluid temperature (TFT) sensor	· Run Self Test. Refer to Powertrain Control/Emissions Diagnosis Manual for diagnosis. Perform Pinpoint Test A, Pinpoint Test B, Pinpoint Test C and Pinpoint Test D using Rotunda Transmission Tester 007-00085 and Rotunda Transmission Range (TR) Sensor Cable "C" (MLPS Manual Lever Position Sensor Cable) 007-00086 or equivalents, as outlined. Service as required. Clear codes, road test and rerun Self Test. Also refer to Routines 241/341 Torque Converter Operation Concern: Always Applied.
353 — HYDRAULIC/MECHANICAL ROUTINE
Shift Linkage, TR Sensor
	Damaged or misadjusted	· Inspect and service as required. Verify linkage adjustment as outlined. After servicing linkage, verify that the TR sensor is properly adjusted. Refer to In-Vehicle Service.
Verify Proper Shift Scheduling and Engagements
		· Go to the appropriate Diagnostic Routines.
Torque Converter Clutch Always Applied
		· Go to Hydraulic/Mechanical Routine 241/341.
Torque Converter Clutch
	Damaged	· Inspect torque converter as outlined. Replace as outlined.

Other Concerns: Noise/Vibration — Forward or Reverse

Possible Component	Reference/Action
254 — ELECTRICAL ROUTINE
No Electrical Concerns
354 — HYDRAULIC/MECHANICAL ROUTINE
For Noises/Vibrations that change with engine speed:
Converter components	Locate source of disturbance. Service as required.
Fluid Level (Low) Pump Cavitation
Pump assembly Engine drive accessories Cooler lines grounding out Flywheel	Locate source of disturbance. Service as required.
For Noises/Vibrations That Change with Vehicle Speed:
Engine mounts loose or damaged Driveline concerns: U-joints rear axle suspension modifications 1st Gear: low one-way clutch gearset friction elements 2nd Gear: intermediate one-way clutch intermediate clutch piston bleed hole out of 12 o'clock position friction elements 3rd Gear: torque converter anti-clunk spring friction elements 4th Gear: gear set friction elements torque converter Reverse: gear set friction elements Output shaft splines worn or damaged	Locate source of disturbance and service as required. Refer to the following shift routine(s) for further diagnosis: Shift 1-2, Routine 320 Shift 2-3, Routine 321 Shift 3-4, Routine 322 Shift 4-3, Routine 323 Shift 3-2, Routine 324 Shift 2-1, Routine 325 Torque Converter Cycling 242/342
Other Noises/Vibrations:
Main Controls, valve resonance Shift Cable: vibration grounding cooler lines grounding	Locate source of disturbance and service as required.

Other Concerns: Engine Will Not Crank

Possible Component		Reference/Action
255 — ELECTRICAL ROUTINE
Powertrain Control System
	· Electrical inputs/outputs, vehicle wiring harnesses, engine starting system hardware, TR sensor	· Run Self Test. Refer to Powertrain Control/Emissions Diagnosis Manual for diagnosis. Perform Pinpoint Test D using Rotunda Transmission Range (TR) Sensor Cable "C" (MLPS Manual Lever Position Sensor Cable) 007-00086 or equivalent, as outlined. Service and adjust as required.
355 — HYDRAULIC/MECHANICAL ROUTINE
Shift Linkage, TR Sensor
	· Damaged or misadjusted	· Inspect and service as required. Verify linkage adjustment as outlined. After servicing linkage, verify that the TR sensor is properly adjusted. Refer to In-Vehicle Service.

Other Concerns: No Park Range

Possible Component		Reference/Action
256 — ELECTRICAL ROUTINE
	· No Electrical Concerns
356 — HYDRAULIC/MECHANICAL ROUTINE
Shift Linkage, TR Sensor
	· Damaged or misadjusted	· Inspect and service as required. Verify linkage adjustment as outlined. After servicing linkage, verify that the TR sensor is properly adjusted. Refer to In-Vehicle Service.
Park Mechanism
	· Output shaft ring, park brake pawl, parking pawl return spring, park rod guide cup, parking pawl shaft, parking pawl actuating rod, manual lever, manual lever detent spring damaged or assembled wrong	· Inspect for damage or wrong assembly and service as required.

Other Concerns: Transmission Overheating

Possible Component		Reference/Action
257 — ELECTRICAL ROUTINE
	· Refer to Routine 240/340, Torque Converter Operation Concern: No Apply
357 — HYDRAULIC/MECHANICAL ROUTINE
Fluid
	· Improper level	· Adjust fluid to proper level.
	· Condition	· Inspect as outlined under Fluid Condition Check.
Cooler Lines
	· Damaged, blocked or reversed	· Inspect for damage and proper installation. Service as required.
Auxiliary Cooler
	· Damaged, blocked or restricted or improperly installed	· Inspect for damage and proper installation. Service as required.
Vehicle Concerns Causing Engine Overheating		· Refer to Section 03-03.
Main Controls
	· Drain back valve, torque clutch control valve, converter limit valve stuck, damaged or assembled wrong	· Inspect for damage and service as required.
Torque Converter
	· No Apply	· Refer to Routine 240/340.

 CAUTION: Do not install Transmission Tester when verifying these pressures.

NOTE: Vehicle harness must be installed at transmission connector to verify these pressures.

NOTE: Pressures may vary with model.

Reference: Pressure Chart No. 401

Range	Idle		WOT Stall
	EPC	Line Pressure	EPC	Line Pressure
P, N, OD, 2, 1	34-103 kPa (5-15 psi)	269-538 kPa (39-78 psi)	572-641 kPa (83-93 psi)	110-1448 kPa (160-210 psi)
R	34-103 kPa (5-15 psi)	441-745 kPa (64-108 psi)	572-641 kPa (83-93 psi)	1427-1841 kPa (207-267 psi)

Reference: Band/Clutch Application Chart No. 601

Gear	Overdrive Band	Reverse Band	Forward Clutch	Direct Clutch	Interim Friction Clutch	Reverse Clutch	Interim One-Way Clutch	Planetary One-Way Clutch
1st Gear Manual Low	—	Applied	Applied	—	—	—	—	Holding
2nd Gear Manual Low	Applied	—	Applied	—	Applied	—	Holding	—
1st Gear — (D) (OVERDRIVE)	—	—	Applied	—	—	—	—	Holding
2nd Gear — (D) (OVERDRIVE)	—	—	Applied	—	Applied	—	Holding	—
3rd Gear — (D) (OVERDRIVE)	—	—	Applied	Applied	Applied	—	—	—
4th Gear — (D) (OVERDRIVE)	Applied	—	—	Applied	Applied	—	—	—
Reverse (R)	—	Applied	—	—	—	Applied	—	—

Reference: Solenoid Operation Chart No. 701

Transmission Range Selector Lever Position	PCM Commanded Gear	4R70W Solenoids
		SS1	SS2	TCC
P/R/N	1	ON	OFF	HD
(D)	1	ON	OFF	HD
(D)	2	OFF	OFF	EC
(D)	3	OFF	ON	EC
(D)	4	ON	ON	EC
(D)
w/OD OFF
1	1	ON	OFF	HD
2	2	OFF	OFF	EC
3	3	OFF	ON	EC
Manual 2	2	OFF	OFF	EC
Manual 1	1	ON	OFF	HD
1a	2	OFF	OFF	EC