OBD Guide

B1300

Power Door Lock Circuit Failure

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$22–111 (est.)

Symptoms

  • Central locks don't work
  • Locks work intermittently
  • Error on the dashboard

Causes

  • Open or shorted wiring harness
  • Central locking relay malfunction
  • Damage to the lock mechanism
  • Problem with the central locking control unit

How to Fix

  1. Check the central locking circuit fuse
  2. Inspect the wiring harness for damage
  3. Check the operation of the central locking relay
  4. Diagnose the lock mechanism for damage
  5. Check the control unit for errors

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