Chart 7 - B3138 - All Door Lock Circuit High

Schematic:

CIRCUIT DESCRIPTION
Door locking/unlocking, by remote keyless entry (RKE) or driver/all door lock switches, is controlled through the Body Control Module (BCM).

When an all door lock has been requested, the BCM switches circuit 195, BCM cavity J1 - A4 to battery voltage. This energizes the all door lock relay which supplies power to all door lock motors. Grounding is achieved through the closed contacts of the unlock relay and through the driver door unlock cavity J1 - A6 of the BCM.

Lock/Unlock power application is limited by the BCM to .375 seconds to protect lock motors.

DTC PARAMETERS
^ All door lock is requested.
^ Circuit 195 shorted to battery voltage.
^ Condition exists for 30 seconds.

DIAGNOSTIC AIDS
^ Inspect wiring harness for damage. Check for broken or chafed insulation.
^ If fault is suspected to be intermittent, wiggling harness wiring may help in locating fault.

TEST DESCRIPTION

Diagnostic Chart: