## DTC Troubleshooting: P1297 (20-1)

DTC P1297 (20-1): | ELD Circuit Low Voltage

1. | Reset the ECM/PCM.

2. | Start the engine.

3. | Turn on the headlights. Is DTC P1297 indicated? YES - Go to 4. NO - Intermittent failure, system is OK at this time. Check for poor connections or loose wires at the ELD and at the ECM/ PCM.n

4. | Turn the ignition switch and the headlights OFF.

5. | Disconnect the ELD 3P connector.

6. | Turn the ignition switch ON (II).

7. | Measure voltage between body ground and the ELD 3P connector terminal No. 3. Is there about 5 V? YES - Replace the ELD.n NO - Go to 8.

8. | Turn the ignition switch OFF.

9. | Disconnect ECM/PCM connector E (31P).

10. | Check for continuity between body ground and ECM/PCM connector terminal E15. Is there continuity? YES - Repair short in the wire between the ECM/PCM (E15) and the ELD.n NO - Update the ECM/PCM if it does not have the latest software, or substitute a known-good ECM/PCM, then recheck. If the symptom/indication goes away with a known-good ECM/PCM, replace the original ECM/PCM.n