Diesel Data: Automotive Repair

Symptom Troubleshooting




Symptom Troubleshooting: Error is indicated on the LCD display

Error is indicated on the LCD display

1. Turn the ignition switch to ON (II).

2. Check for PGM-FI system DTCs with the HDS.

Are there PGM-FI system DTCs?
YES - Do the DTC's troubleshooting, then do the gauge assembly self-diagnosis. Initial Inspection and Diagnostic Overview

NO - Go to step 3.


3. Turn the ignition switch to LOCK (0).

4. Disconnect gauge assembly connector B (30P).

5. Jump the SCS line with the HDS.

6. Disconnect ECM connector E (31P).

7. Check for continuity between gauge assembly connector B (30P) terminal No. 26 and ECM connector E (31P) terminal No. 13.

Is there continuity?
YES - Go to step 8.

NO - Repair an open in the wire between the gauge assembly and the ECM.






8. Check for continuity between gauge assembly connector B (30P) terminal No. 26 and body ground.

Is there continuity?
YES - Repair a short to ground in the wire between the gauge assembly and the ECM.

NO - Go to step 9.






9. Reconnect gauge assembly connector B (30P).

10. Turn the ignition switch to ON (II).

11. Measure the voltage between gauge assembly connector B (30P) terminal No. 26 and body ground.

Is there battery voltage?
YES - Replace the ECM.

- '00-05 models

- '06-09 models Service and Repair


NO - Replace the gauge assembly. Service and Repair