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. Immobilizer system check:

Immobilizer system check
-1. Turn the ignition switch to LOCK (0).

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

-3. From the SYSTEM SELECTION MENU, enter IMMOBI, then select IMMOBILIZER SETUP.
NOTE: If the HDS does not communicate with the immobilizer-keyless control unit, check the power, ground, and K-line connections.

-4. Select the SYSTEM CHECK from the IMMOBILIZER INFO.

Is SYSTEM CHECK indicated?
-YES- Troubleshoot the immobilizer system according to the results of the SYSTEM CHECK Component Tests and General Diagnostics.
-NO- Go to step 2.

2. Open wire check (LG line):

Open wire check (LG line)
-1. Turn the ignition switch to LOCK (0).

-2. Enter the vehicle, and remove the ignition key from the ignition switch, then close all the doors.

-3. Operate the keyless transmitter LOCK and UNLOCK several times in the vehicle.

Do the door lock actuators work normally?
-YES- Go to step 3.
-NO- Repair an open or high resistance in the ground wire or poor ground (G101).

3. Open wire check (IG1_FUEL_PUMP line):

Open wire check (IG1_FUEL_PUMP line)
-1. Turn the ignition switch to ON (II).

-2. Measure the voltage between test points 1 and 2.









Is there battery voltage?
-YES- Replace the immobilizer-keyless control unit Service and Repair.
-NO- Repair an open or high resistance in the wire.