Important: Always perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure.

When the passenger door lock switch is place in to the UNLOCK position, ground is applied through the switch to the body control module (BCM). The BCM then applies ground through the passenger door unlock relay control circuit to the coil side of the passenger unlock relay in the body electrical center (BEC). The relay then engages and applies voltage to all of the passenger door lock assemblies.

The ignition is ON.

The BCM receives a voltage signal on the passenger door unlock relay control circuit.

The BCM cease attempt to unlock the doors.

The BCM clears this code from current when the fault is removed from the system.

Schematic Reference

Door Lock/Indicator Schematics

Connector End View Reference

Power Door Systems Connector End Views

Electrical Information Reference

Scan Tool Reference

Ignition ON, place the driver door lock switch to the UNLOCK position. The driver door should unlock.

1. Disconnect the BEC connector C1. Verify the DTC resets.

⇒	If the DTC does not reset, replace the BEC.

2. Test for a short to voltage in the passenger door unlock relay control circuit.

⇒	If all circuits/connections test normal, replace the BCM.

Important: Always perform the Diagnostic Repair Verification after completing the diagnostic procedure.