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Home >> Chevrolet >> 2001 >> Cavalier LS, 2.2 4 >> Repair and Diagnosis >> External Pages >> Different car >> Section 339 (Lighting Systems) >> Diagnostic Information and Procedures >> DTC B2662: Park Lamp Input >> Circuit Description

Circuit Description

WARNING: This page is about a different car, the 2003 Pontiac Sunfire and 2003 Chevrolet Cavalier. However, it is still accessible from the selected car via links, so may be relevant.

The park lamps are controlled by the turn/headlamp switch. Positive battery voltage is supplied to the switch through the EXT LP fuse. When the turn/headlamp switch is placed in the park or head position, battery voltage is supplied to the park lamps. The body control module is also connected to the park lamp circuit to sense whether or not the park lamps turn on when the lowbeam or highbeam headlamps are turned on. The BCM also uses the parklamp battery positive voltage to power the instrument panel dimmer output circuit. If the BCM senses that the lowbeam or highbeam headlamps are on and the park lamp input is not active, DTC B2662 sets.

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