Error Is Indicated on the LCD Display
Error is indicated on the LCD display1. Turn the ignition switch ON (II).
2. Check for PGM-FI system DTCs with the HDS.
Are there PGM-FI system DTCs?
YES - Do the DTC troubleshooting, then do the gauge assembly self-diagnosis.
NO - Go to step 3.
3. Turn the ignition switch OFF.
4. Disconnect gauge assembly connector B (30P).
5. Disconnect ECM connector E (31P).
6. Check for continuity between gauge assembly connector B (30P) No. 26 terminal and ECM connector E (31P) No. 13 terminal.
Is there continuity?
YES - Go to step 7.
NO - Repair an open in the wire between the gauge assembly and the ECM.
7. Check for continuity between gauge assembly connector B (30P) No. 26 terminal 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 8.
8. Reconnect gauge assembly connector B (30P).
9. Turn the ignition switch ON (II).
10. Measure the voltage between gauge assembly connector B (30P) No. 26 terminal and body ground.
Is there battery voltage?
YES - Replace the ECM.
NO - Replace the gauge assembly.