Normal Operation
WARNING: This page is about a different car, the 2010 Mercury Mariner and 2010 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.
When the ignition switch is placed in START, fused ignition voltage is sent to the:
- Battery Junction Box (BJB) fuse 35 (10A)
- Smart Junction Box (SJB)
- PCM
This pinpoint test is intended to diagnose the following:
- Wiring, terminals or connectors
- Ignition switch
- SJB
- One-Touch Integrated Start (OTIS) diode
- PCM