• 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) .)
• While performing immobilizer system security access using the WDS or equivalent,
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.
POSSIBLE
CAUSE
Diagnostic Procedure
STEP INSPECTION ACTION
Yes Go to the next step.
1
• Turn the ignition switch to the ON
position.
• Do other warning lights in the
instrument cluster illuminate normally?
No
Inspect the instrument cluster.
(See INSTRUMENT CLUSTER INSPECTION .)
2
• Turn the ignition switch to the LOCK
position.
Yes
Replace the instrument cluster.
(See INSTRUMENT CLUSTER
REMOVAL/INSTALLATION .)