M/T Model

DTC P1298: High Voltage in ELD Circuit - M/T Model

1. Reset the ECM.
2. Start the engine.
3. Turn on the headlights.

Is DTC P1298 indicated?

YES - Go to step 4.

NO - Intermittent failure, system is OK at this time. Check for poor connections or loose wires at C204 (located under the right side of dash), the ELD, and the ECM.

4. Turn the ignition switch and headlights OFF.
5. Disconnect the ELD 3P connector.
6. Turn the ignition switch ON (II).




7. Measure voltage between body ground and ELD 3P connector terminal No.1.

Is there battery voltage?

YES - Go to step 8.

NO - Repair open in the wire between the No.6 ECU (ECM) CRUISE CONTROL (15 A) fuse and the ELD.

8. Turn the ignition switch OFF.




9. Check for continuity between ELD 3P connector terminal No.2 and body ground.

Is there continuity?

YES - Go to step 10.

NO - Repair open in the wire between the ELD and G202.

10. Disconnect ECM connector A (31P).




11. Connect ELD 3P connector terminal No.3 to body ground with a jumper wire.




12. Check for continuity between body ground and ECM connector terminal E19.

Is there continuity?

YES - Go to step 13.

NO - Repair open in the wire between the ECM (E19) and the ELD.

13. Reconnect the ELD 3P connector and ECM connector E (31P).
14. Start the engine, and let it idle.




15. While measuring voltage between ECM connector terminals A26 and E19, turn the headlights on (high).

Does the voltage drop?

YES - Substitute a known-good ECM and recheck. If the symptom/indication goes away, replace the original ECM.

NO - Replace the ELD.