Checking opening using the key: Checks: Notes

This fault-tracing assumes that the lock cylinder is not mechanically defective.

Check door control module connector A and the lock unit connector. Check for contact resistance and oxidation.

Check the cable between door control module connector terminal #A6 and lock unit connector terminal #4. Check for an open-circuit.

Check the cable between door control module connector terminal #A12 and lock unit connector terminal #1. Check for an open-circuit.

Check the cable between door control module connector terminal #A13 and lock unit connector terminal #5. Check for an open-circuit.

If no fault was found, replace the lock unit.

Other information: 

• See Signal specification
• See Connecting the breakout box
• To access the driver/passenger door module (DDM/PDM) connector, see Driver's door module / passenger door module (DDM/PDM), replacing
• To access or replace the lock unit, see Lock mechanism front side door, replacing
• See Checking wiring and terminals

• Continue 

  Refer to Symptom verification