Normal Operation
WARNING: This page is about a different car, the 2009 Mercury Grand Marquis and 2009 Ford Crown Victoria. However, it is still accessible from the selected car via links, so may be relevant.
When placed in the RUN position, the ignition switch provides fused battery voltage to the following circuits:
- 296 (WH/VT)
- 687 (GY/YE)
- 1717 (VT/OG)
When placed in the START position, the ignition switch provides fused battery voltage to the following circuits:
- 1522 (DG)
- 1717 (VT/OG)
- DTC C1555 RUN/START Input Circuit Failure - If during the on-demand self test, the Lighting Control Module (LCM) detects an open circuit or a short to ground in the RUN or START circuits, DTC C1555 will be set.
This pinpoint test is intended to diagnose the following:
- Fuse(s)
- Wiring, terminals or connectors
- Ignition switch
- Central Junction Box (CJB)