Test C: DTC B1555 - Ignition Run/Start Circuit Failure
PINPOINT TEST C: IGNITION RUN/START CIRCUIT FAILURERefer to Vehicle/Diagrams, Power Distribution/SJB for schematic and connector information.
Normal Operation
When placed in RUN, the ignition switch provides voltage to the smart junction box (SJB) and the instrument cluster on circuit CDC34 (WH/OG). When placed in START, the ignition switch provides voltage to the SJB on circuit CDC35 (BU/WH).
Possible Causes
^ Circuit open
^ Circuit shorted
^ Ignition switch
^ SJB
C1-C2:
C2-C5:
C5:
