Will Not Unlock (or Lock) With The Transmitter, But Will Unlock (Lock) With Door Lock Switch and Door Key Cylinder Switch

Keyless/Power Door Locks/Security System Symptom Troubleshooting - Doors will not unlock (or lock) with the transmitter, but will unlock (or lock) with the door lock switch and the door key cylinder switch

Doors will not unlock (or lock) with the transmitter, but will unlock (or lock) with the door lock switch and the door key cylinder switch

NOTE: Before troubleshooting, check the B-CAN DTCs. If any DTC is indicated, refer to the B-CAN System Diagnosis Test Mode A Troubleshooting - B-CAN System Diagnosis Test Mode A, and troubleshoot the indicated DTCs first.

1. Turn the ignition switch to LOCK (0).

2. Remove the ignition key from the ignition switch.

3. Close and lock the doors.

4. Try to lock/unlock the doors with the keyless transmitter.

Do the door lock actuators work normally?

YES -

Intermittent failure, the system is OK at this time. Check for loose or poor connections.

NO -

Go to step 5.

5. Open the driver's door.

Does the key-in reminder chime sound?

YES -

Faulty ignition key switch, or short to ground on the wire related to the ignition switch. Repair the wire as needed.

NO -

Go to step 6.

6. Do the transmitter test Keyless Entry Transmitter Test.

Is the transmitter OK?

YES -

Substitute a known-good driver's under-dash fuse/relay box, and recheck. If there is still a problem, substitute a known-good immobilizer-keyless control unit, and recheck. If the problem goes away, replace the original immobilizer-keyless control unit Service and Repair.

NO -

Replace the transmitter.