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DTC B2572

id0902j0902000

DTC B2572 | Driver door lock switch short to ground
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DETECTION CONDITION | Short to GND in wiring harness between BCM and driver-side door lock-link switch
POSSIBLE CAUSE | • Short to GND in wiring harness between BCM terminal 7E and front door lock-link switch (driver-side) terminal D • Front door latch and lock actuator (driver-side) malfunction • BCM malfunction

Diagnostic procedure

STEP | INSPECTION | ACTION
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1 | INSPECT FRONT DOOR LATCH AND LOCK ACTUATOR (DRIVER-SIDE) CONNECTOR • Disconnect the front door latch and lock actuator (driver-side) connector. • Inspect the front door latch and lock actuator (driver-side) connector terminals for poor connection (such as damaged/pulled-out pins, and corrosion). • Is there any malfunction? | Yes | Repair or replace the terminal, then go to Step 5.
No | Go to the next step.
2 | INSPECT BCM CONNECTOR • Disconnect the BCM connector. • Inspect the BCM connector terminals for poor connection (such as damaged/pulled-out pins, and corrosion). • Is there any malfunction? | Yes | Repair or replace the terminal, then go to Step 5.
No | Go to the next step.
3 | INSPECT FRONT DOOR LATCH AND LOCK ACTUATOR (DRIVER-SIDE) SIGNAL CIRCUIT FOR SHORT TO GND • Inspect for continuity between BCM terminal 7E (wiring harness-side) and body GND. • Is there continuity? | Yes | Repair or replace the wiring harness for a possible short to GND, then go to Step 5.
No | Go to the next step.
4 | INSPECT FRONT DOOR LATCH AND LOCK ACTUATOR (DRIVER-SIDE) • Inspect the front door latch and lock actuator (driver-side). (See FRONT DOOR LOCK ACTUATOR INSPECTION.) • Is there any malfunction? | Yes | Replace the front door latch and lock actuator (driver-side), then go to the next step. (See FRONT DOOR LATCH AND LOCK ACTUATOR REMOVAL/INSTALLATION.)
No | Go to the next step.
5 | VERIFY TROUBLESHOOTING COMPLETED • Make sure to reconnect all disconnected connectors. • Clear the DTC from the BCM memory using the WDS or equivalent. • Is the same DTC present? | Yes | Replace the BCM. (See BODY CONTROL MODULE (BCM) REMOVAL/INSTALLATION.)
No | DTC troubleshooting completed.