Section 06-00: Brake System, Service
1996 F-150, F-250, F-350, F-Super Duty Chassis Cab, Motorhome Chassis and Bronco Workshop Manual
DIAGNOSIS AND TESTING

Electrical Schematics



Brake Warning Indicator, F-Series






Brake Warning Indicator, Bronco






Instrument Cluster Connector C1, F-Series






Pin NumberCircuitCircuit Function
1904 (LG/R)Charge Indicator Lamp
2932 (GY/W)High Beam Indicator Input
357 (BK)Ground
4450 (DG/LG)Fasten Belt Indicator Input
529 (Y/W)Fuel Level Input (with Tachometer)
619 (LB/R)Instrument Cluster Illumination Input
757 (BK)Ground
82 (W/LB)Right Turn Input
9648 (W/PK)Tachometer Input Signal
10398 (BK/Y)Tachometer Ground (for 8 Cylinder)
11784 (LB/BK)Low Range Indicator Input
12210 (LB)4x4 Indicator Input
13640 (R/Y)Power Supply in RUN and START
1416 (R/LG)Charge Indicator Input



Instrument Cluster Connector C2, F-Series






Pin NumberCircuitCircuit Function
1875 (BK/LB)Dedicated Ground — Closed Loop
2658 (PK/LG)PCM to Check Engine Indicator Lamp
3603 (DG)Failure Warning Light (Anti-Lock)
4977 (P/W)Dual Brake Warning Switch to Indicator Lamp
5Not Used
629 (Y/W)Fuel Gauge to Fuel Gauge Sender
73 (LG/W)Front Turn Signal Lamp (LH)
831 (W/R)Oil Pressure Indicator to Oil Pressure Sending Unit
9875 (BK/LB)Dedicated Ground — Closed Loop
1039 (R/W)Temperature Gauge to Temperature Sending Unit
11531 (PG/Y)Brake Fluid Level Warning Indicator
12608 (BK/Y)Air Bag Indicator
13640 (R/Y)Power to Gauges, Hot in START or RUN
14Not Used



Instrument Cluster Connector C1, Bronco






Pin NumberCircuitCircuit Function
1904 (LG/R)Charge Indicator Lamp
2932 (GY/W)HI Beam Indicator Input
357 (BK)Ground
4450 (DG/LG)Fasten Belt Indicator Input
529 (Y/W)Fuel Level Input (with Tachometer)
619 (LB/R)Instrument Cluster Illumination Input
757 (BK)Ground
7398 (BK/Y)Ground
82 (W/LB)Right Turn Input
82 (W/LB)Right Front Park/Turn Input
9648 (W/PK)Tachometer Input Signal
10398 (BK/Y)Tachometer Ground (for 8 Cylinder)
11784 (LB/BK)Low Range Indicator Input
12210 (LB)4x4 Indicator Input
13640 (R/Y)Power Supply in RUN and START
1416 (R/LG)Charge Indicator Input



Instrument Cluster Connector C2, Bronco






Pin NumberCircuitCircuit Function
1875 (BK/LB)Dedicated Ground — Closed Loop
2658 (PK/LG)PCM to Check Engine Indicator Lamp
3603 (DG)Failure Warning Light (Anti-Lock)
4977 (P/W)Dual Brake Warning Switch to Indicator Lamp
5Not Used
629 (Y/W)Fuel Level Input (Without Tachometer)
Fuel Level Output (with Tachometer)
73 (LG/W)Front Turn Signal Lamp (LH)
Front Park/Turn Signal Lamp (LH)
831 (W/R)Oil Pressure Indicator to Oil Pressure Sending Unit
9570 (BK/W)Dedicated Ground — Closed Loop
1039 (R/W)Temperature Gauge to Temperature Sending Unit
11Not Used
12608 (BK/Y)Air Bag Indicator
13640 (R/Y)Power to Gauges, Hot in START or RUN
14Not Used



Ignition Switch, F-Series and Bronco






Pin NumberCircuitCircuit Function
A1297 (BK/LG)Hot in ACC or RUN
A2687 (GY/Y)Hot in RUN
A3687 (GY/Y)Hot in RUN
A4687 (GY/Y)Hot in RUN
B137 (Y)Battery Input
B237 (Y)Battery Input
B337 (Y)Battery Input
B437 (Y)Battery Input
B537 (Y)Battery Input
I116 (R/LG)Hot in RUN or START
I2Not Used
P141 (BK/LB)Bulb Test (Diesel Only)
P2512 (T/LG)Bulb Test
STA32 (R/LB)Hot in START
GND57 (BK)Ground



Daytime Running Lamp Module, F-Series and Bronco






Pin NumberCircuitCircuit Function
1932 (GY/W)HI Beam Indicator
2Not Used
3298 (P/O)Fused RUN Only Feed
4162 (LG/R)Release Lever Warning Indicator Lamp — Console
5977 (P/W)Brake Warning Indicator
613 (R/BK)Headlamp Dimmer Switch to Low Beams
738 (BK/O)Power (Hot at All Times)
812 (LG/BK)Headlamp Dimmer Switch to High Beams