Immobilizer Indicator Blinks

Symptom Troubleshooting: Immobilizer indicator blinks

Immobilizer indicator blinks

NOTE: Before troubleshooting, check the items listed in "General Check before Troubleshooting".

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

2. Connect the HDS, then turn the ignition switch to ON (II).

3. Enter the IMMOBILIZER, then select the IMMOBILIZER SETUP.

4. Check the SYSTEM CHECK and STATUS LOG information.

Is the SYSTEM CHECK indicated?
YES - Troubleshoot the immobilizer system according to the result of the SYSTEM CHECK/STATUS LOG. Immobilizer System Check

NO - Go to step 5.


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

6. Enter the vehicle, and remove the ignition key from the ignition switch, then close the all doors.

7. Operate the keyless transmitter LOCK and UNLOCK several times in the vehicle.

Do the door lock actuators work normally?
YES - Go to step 8.

NO - Check for a poor ground (G101) and/or an open in the wire between the immobilizer-keyless control unit 7P connector terminal No. 7 and PCM connector A (49P) terminal No. 41.


8. Turn the ignition switch to ON (II).

9. Measure the voltage between the immobilizer-keyless control unit 7P connector terminal No. 2 and body ground.

Is there battery voltage?
YES - Go to step 10.

NO - Check No. 19 (20 A) fuse in the under-dash fuse/relay box or for an open in the BRN wire between the under-dash fuse-relay box and the immobilizer-keyless control unit.






10. Measure the voltage between the immobilizer-keyless control unit 7P connector terminal No. 7 and body ground.

Is there less than 0.5 V?
YES - Replace the immobilizer-keyless control unit.

NO - Check for a poor ground (G101) and/or repair poor connection or open between the immobilizer-keyless control unit 7P connector terminal No. 7 and PCM connector A (49P) terminal No. 41.