Normal Operation
WARNING: This page is about a different car, the 2005 Ford Pickup. However, it is still accessible from the selected car via links, so may be relevant.
Voltage is supplied to the stoplamp switch through circuit 10 (LG/RD). When the brake pedal is pressed, voltage is sent to the anti-lock brake system (ABS) module through circuit 511 (LG). If an open occurs in the circuit between the ABS module and the stoplamp, DTC B1484 sets.