Keyless Access System Symptom Troubleshooting - Immobilizer/security indicator blinks (2025)

Immobilizer/security indicator blinks 

1. Keyless access system check 1

   -1. Select KEYLESS ACCESS CONTROL UNIT from the ONE-PUSH START system select menu with HDS, and enter KEYLESS ACCESS SYSTEM INFORMATION.

   -2. Do the SYSTEM CHECK 1 and 2 with the HDS.

   SYSTEM CHECK 1

   SYSTEM CHECK 2

   Are N-1 OK and N-2 OK indicated?

   YES 

   Go to step 2.

   NO 

   Troubleshoot the keyless access system according to the result of the SYSTEM CHECK 1 and 2.

2. Keyless access system check 2

   -1. With driver's power window open and all the doors closed, turn the vehicle to the OFF (LOCK) mode.

   -2. Remove all the keyless remotes from inside the vehicle. Hold them outside the open driver's window, at least 20 cm (7.9 in) away from the vehicle.

   -3. Press the engine start/stop switch button. The MID should request the keyless remote to touch the engine start/stop button. The LED on the engine start/stop button will flash for up to 30 seconds.

   -4. Touch the engine start/stop switch with the keyless remote. The buttons on the keyless remote should be facing you. The LED on the engine start/stop button will turn solid when detected.

   -5. Turn the vehicle to the ON mode.

   -6. Select BACKUP CONTROL UNIT from the ONE-PUSH START system select menu with the HDS, and enter SYSTEM INFORMATION.

   -7. Do the SYSTEM CHECK with the HDS.

   System Check

   Is N-1 OK indicated?

   YES 

   Go to step 3.

   NO 

   Troubleshoot the keyless access system according to the result of the SYSTEM CHECK.

3. Gauge control module check

   -1. Select GAUGES from the BODY ELECTRICAL SYSTEM SELECT menu with the HDS.

   -2. Select FUNCTION TESTS from the TEST MODE menu with the HDS, and enter SELF TEST.

   FunctionTest

   Does the immobilizer/security indicator blinking?

   YES 

   Go to the PGM-FI system troubleshooting - Refer to: HOW TO TROUBLESHOOT THE FUEL AND EMISSIONS SYSTEMS or HOW TO TROUBLESHOOT THE ELECTRIC BRAKE BOOSTER SYSTEM .

   NO 

   Replace the gauge control module GAUGE CONTROL MODULE REMOVAL AND INSTALLATION .