DTC P0117 / P0118
Precautions: General safety (00)
DTC Detecting Condition and Trouble Area
| DTC detection condition | Trouble area |
|---|---|
|
P0117: Engine Coolant Temperature Sensor 1 Circuit Low Measured voltage of ECT sensor signal circuit is lower than specified value. (1 D/C detection logic) |
•ECT sensor and/or its circuit
•ECM |
|
P0118: Engine Coolant Temperature Sensor 1 Circuit High Measured voltage of ECT sensor signal circuit is higher than specified value. (1 D/C detection logic) |
Circuit Diagram
| [A]: | ECM connector (View: [a]) | A2: | ECT sensor ground circuit | 2. | ECT sensor |
| A1: | ECT sensor signal circuit | 1. | ECM |
DTC Troubleshooting
| Step | Action | Yes | No |
|---|---|---|---|
| 1 |
Was “Engine and Emission Control System Check” performed?
|
Go to Step 2.
|
|
| 2 |
ECT sensor signal circuit and ground circuit check
1)Check “A1” and “A2” circuits according to Step 2 of ECT Sensor Check:D16AA.
Is check result OK?
|
Go to Step 3.
|
Repair or replace defective wire harness.
|
| 3 |
ECT sensor check
1)Check ECT sensor.
Is check result OK?
|
Replace ECM and recheck DTC.
|
Replace ECT sensor.
|