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.
The Smart Junction Box (SJB) sends a 12-voltage reference signal on circuit CRW01 (WH) to the wiper motor module in order to monitor the status of the wipers. When the headlamp control switch in the AUTOLAMP position and wipers are active, the wiper motor module will pull the voltage reference signal low. Within 10 seconds, the SJB will activate the headlamps.
- DTC B2008 (Wipers On Signal Circuit Short to Ground) - Sets when a short to ground is detected on the wiper motor status input circuit.
This pinpoint test is intended to diagnose the following:
- Wiring, terminals or connectors
- Windshield wiper motor
- SJB