Chart 3 - B3127 - Left Front Door Only Unlock Circuit Low

Schematic:

CIRCUIT DESCRIPTION

DTC PARAMETERS
^ Driver door unlock is requested
^ Circuit 694 shorted to ground.

DIAGNOSTIC AIDS
^ When a shorted-to-ground condition exists in circuit 694 and the BCM has been requested to activate the driver door unlock relay, the BCM will attempt to switch circuit 694 to battery voltage. High current flow will result and the BCM output will go into a protective state. The BCM output will not allow itself to be activated for as much as 3 minutes. Fuse blows when block is activated
^ 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: