Normal Operation
WARNING: This page is about a different car, the 2008 Mercury Mariner and 2008 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:
Hybrid Vehicles
- fuse 35 (10A) in the battery junction box (BJB) along circuit CDC34 (WH/OG).
- smart junction box (SJB) connector C2280e-1 along circuit CDC34 (WH/OG).
- SJB connector C2280b-45 along circuit CDC34 (WH/OG).
- PCM connector C175b-21 along circuit CDC35 (BU/WH).
- SJB C2280b-32 along circuit CDC35 (BU/WH).
Non-Hybrid Vehicles
- fuse 35 (10A) in the BJB along circuit CDC34 (WH/OG).
- SJB connector C2280e-1 along circuit CDC34 (WH/OG).
- SJB connector C2280b-45 along circuit CDC34 (WH/OG).
- PCM connector C175b-7 along circuit CDC35 (BU/WH).
- BJB starter diode along circuit CDC35 (BU/WH), then through the diode to:
- SJB C2280b-32 along circuit CE619 (BU/BN).
- PCM C175b-4 along circuit CE619 (BU/BN).
- transmission range (TR) sensor C167-4 along circuit CE619 (BU/BN).
This pinpoint test is intended to diagnose the following:
- Wiring, terminals or connectors
- Ignition switch
- SJB