1994 PCED OBDI-A
SECTION 2A: Diagnostic Routines

Diagnostic Routines Symptom Flow Charts — Chart 7
 
SymptomOASIS Number
Unique Idle Concerns 
—Fast Idle619400
Additional Driveability Concerns 
—Diesels/Runs On621000

Note: If the vehicle runs normally after the ignition key is turned off, check for faulty ignition switch, IGN RUN circuit short to power, etc. Refer to Service Manual.