| • | 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 provide an overview of each diagnostic category. | 
Important: If any other DTCs are set after ECM has been programmed, refer to Diagnostic Trouble Code (DTC) List - Vehicle.
| • | Program the engine control module (ECM). Refer to Service Programming System (SPS). | 
| • | Perform the Diagnostic Repair Verification after completing the diagnostic procedure. |