GM Service Manual Online
For 1990-2009 cars only

Object Number: 899091  Size: MF

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 the ground and output is on.

Conditions for Setting the DTC

    • Output is on
    • Short to ground
    • No telltale illuminated

Diagnostic Aids

If the condition is suspected to be intermittent, moving the wires will help in duplication of the condition.

B3127


Object Number: 911603  Size: FP