NO.1 SECURITY LIGHT DISPLAY IS NOT NORMAL [IMMOBILIZER SYSTEM]

id0903f5800200

1 | The security light display is not normal.
DESCRIPTION | • The security light remains illuminated 2 min or more after the ignition switch is turned to the ON position • The security light does not illuminate when the ignition switch is turned to the ON position. • The security light remains illuminated while the ignition switch is at the LOCK position. • The security light does not flash or the flashing interval is abnormal while the ignition switch is at the LOCK position.
POSSIBLE CAUSE | • Keyless control module malfunction • Instrument cluster malfunction • Open or short circuit in the wiring harness between the instrument cluster and keyless control module Note • If the security light remains illuminated for approx. 1 min after the ignition switch is turned to the ON position and then displays a DTC, perform immobilizer system malfunction diagnosis according to that DTC. (See DTC TABLE [IMMOBILIZER SYSTEM (KEYLESS ENTRY SYSTEM)].) • While performing immobilizer system security access using the M-MDS, the security light does not illuminate even if the ignition switch is turned to the ON position. Verify the illumination condition of the security light by disconnecting the DLC-2 to release security access.

  Note
  • Normal operation of the security light is as follows. The light starts flashing every 2 s when the ignition switch is turned from ON to ACC position and the immobilizer system is armed. The light stops flashing when the ignition switch is turned to the ON position with the correct ignition key. At this time, the immobilizer system is disarmed and the security light illuminates for about 3 s and then goes out.

Diagnostic Procedure

STEP | INSPECTION | ACTION
--- | --- | ---
1 | • Turn the ignition switch to the ON position. • Do other warning lights in the instrument cluster illuminate normally? | Yes | Go to the next step.
No | Inspect the instrument cluster. (See INSTRUMENT CLUSTER INSPECTION.)
2 | • Turn the ignition switch to the LOCK position. • Disconnect the negative battery cable. • Disconnect the instrument cluster connector (24-pin). • Connect the negative battery cable. • Does the security light illuminate? | Yes | Replace the instrument cluster. (See INSTRUMENT CLUSTER REMOVAL/INSTALLATION.)
No | Go to the next step.
3 | • Disconnect the negative battery cable. • Ground instrument cluster terminal 2F using a jumper wire. • Connect the negative battery cable. • Does the security light illuminate? | Yes | Go to the next step.
No | Replace the instrument cluster. (See INSTRUMENT CLUSTER REMOVAL/INSTALLATION.)
4 | • Disconnect the negative battery cable. • Disconnect the instrument cluster connector. • Connect the keyless control module connector. • Connect the negative battery cable. • Turn the ignition switch to the ON position. • Does the security light illuminate? | Yes | Replace the keyless control module. (See KEYLESS CONTROL MODULE REMOVAL/INSTALLATION.)
No | Repair the wiring harness.