Normal Operation
WARNING: This page is about a different car, the 2009 Mercury Milan, 2009 Lincoln MKZ, and 2009 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.
The ignition switch RUN circuit provides fused ignition voltage, along circuit CDC34 (WH/OG) to the Smart Junction Box (SJB), when the key is in the RUN position.
This pinpoint test is intended to diagnose the following:
- Wiring, terminals or connectors
- Ignition switch
- SJB