Normal Operation
WARNING: This page is about a different car, the 2009 Ford Mustang. However, it is still accessible from the selected car via links, so may be relevant.
When the ignition switch is turned to the START position, fused battery voltage is sent to the Smart Junction Box (SJB) along circuit 1522 (DG). The voltage is sent from the SJB to the audio unit along circuit 1000 (RD/BK) and to the starter relay in the Bussed Electrical Center (BEC) along circuit 32 (RD/LB).
- DTC B1365 Ignition START Circuit Short to Battery - If during the on-demand self test or during normal operation the SJB detects voltage on the START circuit while the ignition switch is in the RUN or ACC position, DTC B1365 will be set.
This pinpoint test is intended to diagnose the following:
- Wiring, terminals or connectors
- Ignition switch
- SJB