B3127
Schematic:
CIRCUIT DESCRIPTION
The body control module (BCM) provides battery voltage to the Left Front Door Unlock Relay through circuit 1391. This DTC will fail current when circuit 1391 is shorted to ground and output is On.
DTC PARAMETERS
^ Output is On
^ Short to ground
^ No telltale illuminated
DIAGNOSTIC AIDS
If condition is suspected to be intermittent, moving wires will help in duplication of condition.
TEST