B2662

CIRCUIT DESCRIPTION
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.

CONDITIONS FOR RUNNING THE DTC
^ The ignition switch is in the ON position.
^ The lowbeam or highbeam headlamps are on.

CONDITIONS FOR SETTING THE DTC
The park lamp input is inactive for 1 second.

ACTION TAKEN WHEN THE DTC SETS
DTC B2662 is stored in the BCM memory.

CONDITIONS FOR CLEARING THE DTC
^ The conditions for setting the DTC are no longer present.
^ A history DTC clears after 100 malfunction free ignition cycles.
^ The BCM receives the clear code command from the scan tool.

DIAGNOSTIC AIDS
^ The low or highbeam headlamps must be on in order to set this DTC.
^ An open EXT LP fuse will set this code.
^ If the DTC is a history DTC. the problem may be intermittent. Refer to Testing for Intermittent and Poor Connections in Diagnostic Aids.

TEST

Steps 1-7:

Steps 8-11: