Normal Operation - Vehicles equipped with a CDIM
WARNING: This page is about a different car, the 2011 Ford Pickup, 2011 Ford F550 Super Duty, 2011 Ford F450 Super Duty, and 2011 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
When the ignition switch is placed in the RUN position, voltage is sent to the internal logic of the BCM through the CDIM via the run/acc and run/start circuits. The BCM communicates the inputs internally to provide a ground signal to the run/start relay control circuit. When activated, the run/start relay provides voltage to the BCM run/start circuits.
Voltage is also supplied to BCM fuses 43 (10A) and 44 (10A).
- DTC B1310:14 (Run/Start Control: Circuit Short to Ground or Open) - sets if the BCM determines that the circuit from the ignition switch is open or shorted to ground during normal operation.
This pinpoint test is intended to diagnose the following:
- Fuse(s)
- Wiring, terminals or connectors
- Run/start relay
- Ignition switch
- CDIM (if equipped)
- BCM
- Battery Junction Box (BJB)