Operation CHARM: Car repair manuals for everyone.

Wiper on Lighting

When the ignition switch is in the ON position and the wipers have been turned on for approximately 20 seconds, the BCM will turn on the low beam headlamps and the park lamps. The low beam headlamps and the park lamps will turn off approximately 20 seconds after the wipers have been turned off. If the ignition switch is turned to the LOCK position, the low beam headlamps and the park lamps will immediately be turned off.