Buick Regal: Immobilizer

 Engine Coolant Fan Wiring Harness Replacement (2.0L LTG)

Removal Procedure 1. Front Bumper Fascia Center Support - Remove. 2. Clip (2) - Remove. 3. Disconnect the electrical connector. (1). 4. Clip (1) - Remove [2x]. 5. Clip (1) - Remove. 6. Engine Coolant Fan Electrical Connector (2) - Disconnect [2x]. 7. Clip (1) - Remove [2x]. 8. Ground Cabl

 DTC P127C, P128A, P128B, P16E4, or P16E5

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. DTC Descriptors D