( TL19E00J46643400000BAAT00 )

Keyless/Power Door Locks/Security System Symptom Troubleshooting Information

Power Door Locks/Keyless

1. Check for B-CAN DTCs. If any B-CAN DTCs are indicated, troubleshoot and resolve them first.

1. If the door lock system and the keyless operation do not work, troubleshoot the door locks first.
   NOTE: The system does not function when the ignition switch is ON (II).

   No. | Symptom | Check Items
   --- | --- | ---

   1

   All the doors will not lock or unlock. *1

   - Poor ground (G501, G502, G505, G601, G651)
   - Driver's door key cylinder switch test
   - Door switch test (check the door switch ON/OFF information with the HDS)
   - Door lock switch test (check the door switch ON/OFF information with the HDS)
   - Also, check for continuity of the UART line between the door multiplex control unit 37P connector No. 27 terminal and the front passenger's power window switch 37P connector No. 29 terminal

   2

   Driver's, left rear doors and fuel fill door lock actuator will not lock or unlock.

   - Poor ground (G501, G502, G505, G601)
   - Blown No. 24 (20 A) fuse in the driver's under-dash fuse/relay box
   - Blown No. 25 (15 A) fuse in the driver's under-dash fuse/relay box
   - Driver's MICU input test
   - Door multiplex control unit input test

   3

   Front passenger's and right rear doors will not lock or unlock.

   - Poor ground (G501, G502, G505, G651)
   - Blown No. 1 (AS F/B) (40 A) *2 or (60 A) *3 fuse in the under-hood fuse/relay box
   - Blown No. 10 (10 A) fuse in the passenger's under-dash fuse/relay box
   - Blown No. 13 (20 A) fuse in the passenger's under-dash fuse/relay box
   - Passenger's MICU input test
   - Door multiplex control unit input test

   4 | Keyless operation does not work (LOCK, UNLOCK). | Symptom troubleshooting

   5

   Doors will not unlock with the transmitter, but will unlock with the door lock switch and the door key cylinder switch.

   - Symptom troubleshooting
   - Door lock switch test (check the door switch ON/OFF information with the HDS)

   6

   Doors will not lock with the transmitter, but will lock with the door lock switch and the door key cylinder switch.

   - Symptom troubleshooting
   - Door lock switch test (check the door switch ON/OFF information with the HDS)

   7 | Doors automatically relock 30 seconds after being unlocked with the transmitter even though a door has been opened. | Symptom troubleshooting
   8 | Only driver's door will unlock or door locks relock immediately after unlocking with the remote. | Driver's door lock knob switch test
   9 | Keyless operation will work even though the ignition key is in the ignition switch. | Ignition key switch test

   *1: | If only one door is not working properly, check that door's lock actuator first, then check the other items listed in this table.
   *2: | With ACC
   *3: | Without ACC