B3137

Diagnostic Chart:

Schematic:

CIRCUIT DESCRIPTION
Circuit 195 from the body control module (BCM) controls the all door lock relay. When the BCM receives a door lock signal, the BCM supplies battery voltage to the relay. Ground for the relay is supplied by circuit 150.

CONDITIONS FOR RUNNING THE DTC
The door lock button is pressed or the keyfob lock button is pressed.

CONDITIONS FOR SETTING THE DTC
Circuit 195 is shorted to ground for 2 seconds.

ACTION TAKEN WHEN THE DTC SETS
The BCM disables the all door lock output for the remainder of the ignition cycle.

CONDITIONS FOR CLEARING THE DTC
^ A current DTC B3137 clears when the malfunction is no longer present and the ignition switch is cycled.
^ All BCM history codes clear after 100 ignition cycles (from OFF to ON) with no current codes active during the 100 ignition cycles.

DIAGNOSTIC AIDS
If the DTC is a history DTC, the problem may be intermittent. Perform the tests while wiggling the wiring and connectors. This may often cause the malfunction to appear.

TEST DESCRIPTION
The number(s) below refer to the step number(s) on the diagnostic table.
2. Listen for an audible click when the all door lock relay operates. Command both the ON and OFF states. Repeat the commands as necessary.
3. Verifies that the body control module is providing voltage to the all door lock relay.
4. Tests for an open in the ground circuit to the all door lock relay.
5. Tests if voltage is constantly being applied to the all door lock relay.