1. Door lock actuator operation check 1.
Do the door lock actuators work normally?
YES
Intermittent failure, the system is OK at this time.
NO
Go to step 2.
2. Keyless access system check 2.
Does the key-in reminder sound?
YES
Go to keyless access symptom troubleshooting "The key-in reminder sounds in vehicle OFF mode when door is open" - Refer to: Keyless Access System Symptom Troubleshooting - Keyless access indicator does not go off or does not come on, or Keyless Access System Symptom Troubleshooting - All the doors and the tailgate will not lock and unlock, or Keyless Access System Symptom Troubleshooting - The key-in reminder sounds in vehicle OFF (LOCK) mode when door is open, or Keyless Access System Symptom Troubleshooting - The doors will not unlock or lock with the keyless remote, but will unlock or lock with the door outer handles, or Keyless Access System Symptom Troubleshooting - The engine starts but stalls immediately, or Keyless Access System Symptom Troubleshooting - The key-in reminder does not sound, or Keyless Access System Symptom Troubleshooting - Immobilizer indicator does not go off or does not come on, or Keyless Access System Symptom Troubleshooting - Cannot select ON mode with keyless access, but can select ON mode with the keyless remote touching the engine start/stop switch, or Keyless Access System Symptom Troubleshooting - The doors will not unlock or lock with the door outer handle touch sensor or lock switch, but will unlock or lock with the keyless remote, or Keyless Access System Symptom Troubleshooting - Cannot select ON mode with keyless access and with the keyless remote touching the engine start/stop switch.
NO
Go to step 3.
3. Keyless access system check 3.
Does the system change to ON mode?
YES
Go to step 5.
NO
Go to step 4.
4. Keyless access system check 4.
Does the system change to ON mode?
YES
Go to the keyless access system symptom troubleshooting "Cannot select ON mode with keyless access, but can select ON mode with the keyless remote touching the engine start/stop switch" - Refer to: Keyless Access System Symptom Troubleshooting - Keyless access indicator does not go off or does not come on, or Keyless Access System Symptom Troubleshooting - All the doors and the tailgate will not lock and unlock, or Keyless Access System Symptom Troubleshooting - The key-in reminder sounds in vehicle OFF (LOCK) mode when door is open, or Keyless Access System Symptom Troubleshooting - The doors will not unlock or lock with the keyless remote, but will unlock or lock with the door outer handles, or Keyless Access System Symptom Troubleshooting - The engine starts but stalls immediately, or Keyless Access System Symptom Troubleshooting - The key-in reminder does not sound, or Keyless Access System Symptom Troubleshooting - Immobilizer indicator does not go off or does not come on, or Keyless Access System Symptom Troubleshooting - Cannot select ON mode with keyless access, but can select ON mode with the keyless remote touching the engine start/stop switch, or Keyless Access System Symptom Troubleshooting - The doors will not unlock or lock with the door outer handle touch sensor or lock switch, but will unlock or lock with the keyless remote, or Keyless Access System Symptom Troubleshooting - Cannot select ON mode with keyless access and with the keyless remote touching the engine start/stop switch.
NO
Go to the keyless access system symptom troubleshooting "Cannot select ON mode with keyless access and with the keyless remote touching the engine start/stop switch" - Refer to: Keyless Access System Symptom Troubleshooting - Keyless access indicator does not go off or does not come on, or Keyless Access System Symptom Troubleshooting - All the doors and the tailgate will not lock and unlock, or Keyless Access System Symptom Troubleshooting - The key-in reminder sounds in vehicle OFF (LOCK) mode when door is open, or Keyless Access System Symptom Troubleshooting - The doors will not unlock or lock with the keyless remote, but will unlock or lock with the door outer handles, or Keyless Access System Symptom Troubleshooting - The engine starts but stalls immediately, or Keyless Access System Symptom Troubleshooting - The key-in reminder does not sound, or Keyless Access System Symptom Troubleshooting - Immobilizer indicator does not go off or does not come on, or Keyless Access System Symptom Troubleshooting - Cannot select ON mode with keyless access, but can select ON mode with the keyless remote touching the engine start/stop switch, or Keyless Access System Symptom Troubleshooting - The doors will not unlock or lock with the door outer handle touch sensor or lock switch, but will unlock or lock with the keyless remote, or Keyless Access System Symptom Troubleshooting - Cannot select ON mode with keyless access and with the keyless remote touching the engine start/stop switch.
5. POWER CONTROL UNIT and KEYLESS ACCESS CONTROL UNIT DTCs check.
KEYLESS ACCESS CONTROL UNIT
DTC (KEYLESS ACCESS CONTROL UNIT)
POWER CONTROL UNIT
DTC (POWER CONTROL UNIT)
Are any DTCs indicated?
YES
Go to indicated DTC troubleshooting.
NO
Go to step 6.
6. Determine possible failure area (keyless remote, others).
Inspection - Keyless Check
Is KEYLESS ENTRY TRANSMITTER CODE IS RECEIVED indicated?
YES
Go to step 7.
NO
Register the keyless remote, and recheck. If the symptom does not go away, replace the keyless remote.
7. Door lock actuator operation check.
Do the door lock actuators work normally?
YES
Go to the MICU input test, and do all power, ground, and communication input tests. If the MICU input tests prove OK, replace the under-dash fuse/relay box.
NO
Check the B-CAN system DTCs. If not, check the door lock system.