Keyless/Power Door Locks/Security Alarm System Symptom Troubleshooting - Doors automatically relock after being unlocked with the transmitter even though a door has been opened
Doors automatically relock after being unlocked with the transmitter even though a door has been opened
  1. Turn the ceiling light switch in DOOR position.
  1. Turn the ignition switch ON (II).
  1. Close all doors.
  1. Watch the ceiling light and the door indicator on the gauge control module.
Does the ceiling light and door indicator go off?
YES -
Go to Step 5 .
NO -
Repair a short to ground in the wire between the MICU and door switch.■
  1. Open and close each door one at a time.
  1. Watch the ceiling light and the door indicator on the gauge control module.
Does the ceiling light and door indicator come on when the door is open, and go off when the door is closed?
YES -
Substitute a known-good MICU and recheck. If the symptom goes away, replace the original MICU .■
NO -
Repair an open in the wire between the MICU and the door switch. If the wire is OK, faulty the door switch, replace the door lock actuator assembly.■