## Immobiliser System

#### Troubleshooting

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Before troubleshooting the Immobiliser system, troubleshoot any ECM with Diagnostic Trouble Codes (DTCs) (see section 11) and make sure the ECM has no malfunction. Note these items before troubleshooting:

- Due to the action of the immobiliser system, the engine takes slightly more time to start than on a vehicle without an Immobiliser system.
- When the system is normal and the proper key is inserted, the indicator light comes on for 2 seconds, then it will go off.
- If the indicator starts to blink after 2 seconds, or if the engine does not start, repeat the starting procedure.

  If the engine still does not start, continue with this procedure.

1. Turn the ignition switch ON (II) with proper key.

1. Check to see if the Immobiliser indicator light comes on.

   Does the indicator light blink?

YES – Go to step 3.

NO – Check for these problems:

- Blown No. 9 (10A) fuse in the under-hood fuse/relay box.
- An open in the wire between the gauge assembly and the immobiliser control unit-receiver.
- A faulty immobiliser indicator light.
- An open in the wire between the gauge assembly and the under-hood fuse/relay box.

1. Remove the dashboard lower cover.

1. Remove the steering column lower covers (see section 17).

1. Disconnect the 7P connector from the immobiliser control unit-receiver.

1. Check for voltage between the immobiliser control unit-receiver 7P connector No. 7 terminal and body ground.

   Is there battery voltage?

YES – Go to step 7.

NO – Repair open in the WHT/RED wire.

1. Check for voltage between the immobiliser control unit-receiver 7P connector No. 6 terminal and body ground.

   Is there battery voltage?

YES – Go to step 8.

NO – Check for these problems:

- Blown No. 10 (7.5A) fuse in the under-dash fuse/relay box.
- An open in the YEL wire.

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