Immobilizer Indicator Blinks

Immobilizer System 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. Do the SYSTEM CHECK with the HDS Immobilizer System Check.

Is the SYSTEM CHECK indicated?

YES -

Troubleshoot the immobilizer system according to the result of the SYSTEM CHECK Immobilizer System Check.�

NO -

Go to step 4.

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

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

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

Do the door lock actuators work normally?

YES -

Go to step 7.

NO -

Check for a poor ground and/or an open in the wire between immobilizer-keyless control unit7P connector terminal No. 7 and body ground (G101).�

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

8. Back-probe and measure the voltage between immobilizer-keyless control unit 7P connector terminal No. 2 and body ground.





Is there battery voltage?

YES -

Go to step 9.

NO -

Check for a blown No. 9 (20 A) fuse in the driver's under-dash fuse/relay box. If the fuse is OK, repair open in the YEL wire between the driver's under-dash fuse/relay box and the immobilizer-keyless control unit.�

9. Back-probe and measure the voltage between immobilizer-keyless control unit 7P connector terminal No. 7 and body ground.





Is there less than 0.2 V?

YES -

Repair poor connection or an open or high resistance between immobilizer-keyless control unit 7P connector terminal No. 7 and G101.�

NO -

Replace the immobilizer-keyless control unit Service and Repair.�