Buick Regal: Diagnostic Information and Procedures

 Park, License, and/or Tail Lamps Malfunction

Diagnostic Instructions Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. Review Strategy Based Diagnosis for an overview of the diagnostic approach. Diagnostic Procedure Instructions provides an overview of each diagnostic category. Diagnostic Fault

 Connector Reconnection - Seats

Special Tools EL-35616 Terminal Test Probe Kit For equivalent regional tools, refer to Special Tools. When the condition is not currently present, but is indicated in DTC history, the cause may be intermittent. An intermittent may also be the cause when there is a customer complaint, but the sympt