Normal Operation
WARNING: This page is about a different car, the 2008 Ford RV Cutaway, 2008 Ford Econoline, 2008 Ford E450 Super Duty, and 2008 Ford Cutaway. However, it is still accessible from the selected car via links, so may be relevant.
When the headlamp switch is placed in the parking lamps ON position, voltage is routed through circuit 14 (BN) to the instrument cluster (IC), the overhead console and the parking lamps. The vehicle security module (VSM) also has an output spliced to circuit 14 (BN) to illuminate the parking lamps.
- DTC B2252 (Parklamp Output Relay Driver Short to Battery) - is an on-demand DTC that sets when the VSM detects a short to voltage from the parking lamps voltage supply circuit.
This pinpoint test is intended to diagnose the following:
- Wiring, terminals or connectors
- Headlamp switch
- Overhead console
- VSM
- Instrument cluster (IC)