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Home >> Honda >> 2012 >> Civic HF, Trans Mfr CD MZ2A >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 63 (Security System / Keyless Entry System - Testing & Troubleshooting (Hybrid)) >> Immobilizer System Symptom Troubleshooting >> Immobilizer indicator blinks
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Immobilizer indicator blinks

WARNING: This page is about a different variant/trim than selected.

NOTE:  Before troubleshooting, check the items listed in General Check before Troubleshooting - Refer to: How to Troubleshoot the Body Electrical (2012), or How to Troubleshoot the Body Electrical (2013), or How to Troubleshoot the Body Electrical (2014 - 2015) .

  1. 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 .

    NO 

    Go to step2.

  2. 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 step3.

    NO 

    Repair an open or high resistance in the ground wire or poor ground (G101).

  3. 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.

    Test condition IG ON (II)
    Test circuit IG1_FUEL_PUMP
    Test point 1 Immobilizer-keyless control unit 7P connector No. 6 (YEL)
    Test point 2 Body ground
    GHH119417Courtesy of HONDA, U.S.A., INC.

    Is there battery voltage?

    YES 

    Replace the immobilizer-keyless control unit - Refer to: Immobilizer-Keyless Control Unit Removal and Installation, or Immobilizer-Keyless Control Unit Registration .

    NO 

    Repair an open or high resistance in the wire.