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DTC 41: Last Message Received Valid: Testing

  1. Attempt to perform all functions controlled by RKE transmitter (door locks, trunk release and alarm). If RKE transmitter controls all functions, go to next step. If RKE transmitter does not control all functions, proceed to TEST C: KEYLESS ENTRY SYSTEM INOPERATIVE under SYMPTOM TESTS in REMOTE KEYLESS ENTRY SYSTEMS - CAMARO & FIREBIRD article.
  2. Replace BCM. See BODY CONTROL MODULE (BCM)  under REMOVAL & INSTALLATION.
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