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 in the PARK or HEADLAMP position, it sends a voltage input to the instrument cluster (IC) through circuit 14 (BN). If the instrument cluster (IC) detects that the key is in the OFF or ACC position, the driver door is ajar, and receives the headlamp on input, the headlamp on warning chime sounds.
This pinpoint test is intended to diagnose the following:
- Wiring, terminals or connectors
- Instrument cluster (IC)