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 OFF.
  1. Connect the HDS, then turn the ignition switch ON (II).
  1. Enter the IMMOBILIZER, then select the IMMOBILIZER SETUP.
  1. Select the SYSTEM CHECK.
Is the SYSTEM CHECK indicated?
YES -
NO -
Go to Step 5 .
  1. Turn the ignition switch OFF.
  1. Enter the vehicle, and remove the ignition key from the ignition switch, then close the all doors.
  1. 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 No. 7 terminal and body ground (G101).■
  1. Turn the ignition switch ON (II).
  1. Measure voltage between the immobilizer-keyless control unit 7P connector No. 2 terminal and body ground.
Is there battery voltage?
YES -
Go to Step 10 .
NO -
Repair open in the YEL wire between the under-dash fuse/relay box and the immobilizer-keyless control unit.■
  1. Measure voltage between the immobilizer-keyless control unit 7P connector No. 7 terminal and body ground.
Is there 0.5 V or more?
YES -
Repair poor connection or open between the immobilizer-keyless control unit 7P connector No. 7 terminal and G101.■
NO -
Replace the immobilizer-keyless control unit.■