Keyless/Power Door Locks/Security System Symptom Troubleshooting - Keyless operation troubleshooting

Keyless operation troubleshooting


NOTE:
  • Before troubleshooting, check the B-CAN DTCs. If any DTC is indicated, troubleshoot the indicated DTC first.
  • Before troubleshooting, do the keyless transmitter test.

1.Turn the ignition switch ON (II).

2.Try to start the engine.

Does the engine start?


YES - The immobilizer system is OK, go to 3.


NO - Go to the immobilizer symptom troubleshooting information.n


3.Turn the ignition switch OFF.

4.Connect the HDS to the data link connector.

5.Close all doors, then turn the ignition switch ON (II).


6.Enter the BODY ELECTRICAL menu, and check the door switch parameters.

Do all door switches indicate OFF?


YES - Go to 6.


NO - Faulty door switch or shorted door switch wire. Repair a short in the wire or door switch.n


7.Remove the ignition key from the ignition switch.

8.Disconnect the immobilizer-keyless control unit 7P connector.

9.Check for voltage between the immobilizer-keyless control unit 7P connector No. 1 terminal and body ground.

 

Is there battery voltage?


YES - Go to 10.


NO - Check the No. 23 (10 A) fuse in the under-hood fuse/relay box. If the fuse is blown, replace the fuse and repair a short to ground in the wire. If the fuse is OK, repair an open in the wire.n


10.Disconnect the ignition key switch 6P connector.

11.At the ignition key switch side, check for continuity between the ignition key switch 6P connector No. 1 and No. 2 terminals.

 

Is there continuity?


YES - Faulty ignition key switch or short to ground, replace the steering lock assembly.n


NO - Go to 12.

12.Insert the ignition key into the ignition switch.

13.At the ignition key switch side, check for continuity between the ignition key switch 6P connector No. 1 and No. 2 terminals.

 

Is there continuity?


YES - Go to 14.


NO - Faulty ignition key switch, replace the steering lock assembly.n


14.Check for continuity between the immobilizer-keyless control unit 7P connector No. 6 terminal and the ignition key switch 6P connector No. 1 terminal.

 

Is there continuity?


YES - Go to 15.


NO - Repair an open in the wire.n

15.Check for continuity between the immobilizer-keyless control unit 7P connector No. 6 terminal and body ground.

 

Is there continuity?


YES - Repair a short to ground in the wire.n


NO - Replace the immobilizer-keyless control unit.n