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Home >> Chevrolet >> 2007 >> Impala SS >> Repair and Diagnosis >> External Pages >> Different car >> Section 249 (Lighting Systems) >> Diagnostic Information and Procedures >> DTC B2585 >> Circuit Description

Circuit Description

WARNING: This page is about a different car, the 2006 Chevrolet Monte Carlo and 2006 Chevrolet Impala. However, it is still accessible from the selected car via links, so may be relevant.

Battery positive voltage is applied at all times to both the coil and switched sides of the PARK LP PCB Relay. The park lamps are controlled by the body control module (BCM) by inputs from park lamp switch. When the BCM receives a park lamps ON command, it grounds the park lamps relay control circuit in order to energize the PARK LP PCB Relay. With the relay energized, battery voltage is applied through switch side of the relay, both PARK Fuses, the and the park lamp supply voltage circuits to all park, tail, and marker lamps.

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