Diesel Data: Automotive Repair

P0128

DTC P0116/P0125/P0128

DTC Detecting Condition and Trouble Area






Circuit Diagram

Circuit Diagram:






DTC Confirmation Procedure

NOTE: Be sure to troubleshoot first unexpected DTCs previously detected in "DTC Confirmation Procedure".

DTC P0116:

NOTE:
Confirm that the following conditions are met in this "DTC Confirmation Procedure".
- ECT < 70 °C (158 °F)
- DTC P0102, P0103, P0117 or P0118 is not detected.

1. Warm up engine to normal operating temperature.
2. Run engine at idle speed for 2 min.

DTC P0125:

NOTE:
Confirm that the following conditions are met in this "DTC Confirmation Procedure".
- ECT at engine started < 10 °C (50 °F)
- DTC P0102, P0103, P0117 or P0118 is not detected.

1. Warm up engine to normal operating temperature.
2. Run engine at idle speed for 5 min.

DTC P0128:

NOTE:
Confirm that the following conditions are met in this "DTC Confirmation Procedure".
- IAT at engine started > -10 °C (14 °F)
- -10 °C (14 °F) < ECT at engine started < 58 °C (136.4 °F)
- DTC P0102, P0103, P0117 or P0118 is not detected.

1. Start engine.
2. Drive vehicle at 60 - 100 km/h (37 - 62 mile/h) for 10 min.

DTC Troubleshooting

Step 1-5: