Test C: DTC B1555 - Ignition Run Circuit Failure or No Power In Run
Pinpoint Test C: DTC B1555 - Ignition RUN Circuit Failure Or No Power In RUNNormal Operation
The ignition switch RUN circuit provides fused battery voltage along circuits 1050 (LG/VT), 687 (GY/YE) and 297 (BK/LG) to the smart junction box (SJB) when the key is in the RUN position.
Possible Causes
^ Fuse
^ Circuit open
^ Ignition switch
^ SJB