Keyless Access System Symptom Troubleshooting - The doors will not unlock (lock is normal) with keyless access or with the keyless remote buttons, or the doors will not lock (unlock is normal) with keyless access or with the keyless remote buttons
The doors will not unlock under the following conditions:
- When the keyless remote is far from the vehicle.
- When the operation is made without the keyless remote.
- When the doors are already unlocked.
- When the vehicle speed signal is detected.
The doors will not lock under the following conditions:
- When the keyless remote is far from the vehicle.
- When the operation is made without the keyless remote.
- When the doors are already open.
- When the vehicle is in ACCESSORY or ON modes.
- 1. Touch sensor circuit check:
- 1. Select HISTORY CLEAR from the ONE-PUSH START system select menu with the HDS.
ONE-PUSH START - KEYLESS ACCESS CONTROL Unit - History Data
- 2. Select HISTORY DATA from the ONE-PUSH START system select menu with the HDS.
- 3. Touch the each door outer handle touch sensor and push the lock button, then check the HISTORY DATA.
History Data
DRIVER DOOR UNLOCK SWITCH OK DRIVER DOOR LOCK SWITCH OK FRONT PASSENGER DOOR UNLOCK SWITCH OK FRONT PASSENGER DOOR LOCK SWITCH OK Is all the information OK?
YES
Go to step 2.
NO
- 2. Door lock actuator operation check 1:
- 1. Get out of the vehicle with the keyless remote, and close all doors.
- 2. Push the UNLOCK button of the keyless remote at least 10 times.
Do the door lock actuators work normally?
YES
Go to step 3.
NO
Go to step 6.
- 3. Door lock actuator operation check 2:
- 1. Push the LOCK button of the keyless remote at least 10 times.
Do the door lock actuators work normally?
YES
Intermittent failure, the system is OK at this time.
NO
Go to step 4.
- 4. Determine possible failure area (keyless remote, others):
- 1. Push the LOCK and the UNLOCK buttons of the keyless remote, and check if the LED come on.
Does the LED come on?
YES
Go to step 5.
NO
Replace the keyless remote.
- 5. Keyless access system check 1:
- 1. With all doors closed, check the parameter(s) below with the HDS.
Signal Threshold Current conditions Values Unit Value Unit Driver's Door Switch OFF Front Passenger's Door Switch OFF Driver's Rear Door Switch OFF Passenger's Rear Door Switch OFF Are all data list values correct?
YES
Faulty MICU; replace the under-dash fuse/relay box .
NO
Check the each door switch circuit.
- 6. Door lock actuator operation check 2:
- 1. Push the LOCK button of the keyless remote at least 10 times.
Do the door lock actuators work normally?
YES
Go to step 7.
NO
- 7. Keyless access system check 1:
- 1. Push the LOCK and the UNLOCK buttons of the keyless remote, and check if the LED come on.
Does the LED come on?
YES
Replace the keyless access control unit .
NO
Replace the keyless remote.