Information

1. Check TechCONNECT for any Service Bulletins related to the customer concern.

2. Verify that the ECM software is at the latest level.

3. Perform the existing "Pre-diagnostic Troubleshooting Procedures" available in TechCONNECT under: Service Info tab > 9 - Engine > Diagnosis & Testing.

4. For the engine circuit diagram, refer to the detailed service information available in TechCONNECT under: Service Info tab > 9 - Engine > Schematics and Diagrams.

5. For a complete wiring diagram, refer to the detailed wiring diagrams available in TechCONNECT under: Service Info tab > Wiring > 14 - Fuel System > Fuel Injection > (component).

NOTE:
Refer to the appropriate section below (A, B, C, or D) to diagnose the customer specific symptom / condition.