Symptoms - Immobiliser
Note: The following steps must be completed before using the symptom tables.
- Perform the Diagnostic System Check - Vehicle before using the symptom tables in order to verify that all of the following are true:
• | The control modules can communicate via the serial data links. |
- Review the system operation in order to familiarize yourself with the system functions. Refer to
Keyless Entry System Description and Operation : with ATH → without ATH .
Visual/Physical Inspection
• | Inspect the easily accessible or visible system components for obvious damage or conditions which may cause the symptom. |
Intermittent
Faulty electrical connections or wiring may be the cause of intermittent conditions. Refer to Testing for Intermittent Conditions and Poor Connections .
Symptom List
Refer to Security Indicator Inoperative in order to diagnose the symptom.
Refer to Security Indicator Always On or Flashing in order to diagnose the symptom.
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© Copyright Chevrolet. All rights reserved |