DTC P0116: ECT Sensor 1 Circuit Range/Performance Problem (V6)
NOTE: Before you troubleshoot, review the general troubleshooting information - Refer to: How to Troubleshoot the Dual Clutch Transmission (DCT), or How to Troubleshoot the Brake Booster Pressure Monitoring System (With Auto Idle Stop System), or How to Troubleshoot the Fuel and Emissions Systems (V6, Without Auto Idle Stop System), or How to Troubleshoot the Fuel and Emissions Systems (V6, With Auto Idle Stop System) .
| DTC Description | Confirmed DTC | Pending DTC | Freeze Frame |
|---|---|---|---|
| P0116 ECT Sensor 1 Circuit Range/Performance Problem |
DTC (PGM-FI)
- ECT sensor 1 check
-1. Turn the vehicle to the ON mode.
- 2. Check the parameter (s) below with the HDS.
Signal Threshold Current conditions Values Unit Values Unit ECT SENSOR 1 More than 176 °F ECT SENSOR 1 More than 80 °C Do the current condition (s) match the threshold?
YES
Note the value of ECT SENSOR 1, then go to step 3.
NO
Go to step 2.
- Problem verification (low temperature)
-1. Note the value of ECT SENSOR 1 in the DATA LIST with the HDS.
Signal Current conditions Values Unit ECT SENSOR 1 - 2. Start the engine.
- 3. Hold the engine speed at 3, 000 rpm without load (in P or N) until the radiator fan comes on, then let it idle.
- 4. Check ECT SENSOR 1 in the DATA LIST with the HDS.
Signal Current conditions Values Unit ECT SENSOR 1 Does ECT SENSOR 1 change 18 °F (10 °C) or more?
YES
Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at ECT sensor 1 and the PCM. If the freeze data/on-board snapshot of this DTC is recorded, try to reproduce the failure under the same conditions with the freeze data/on-board snapshot.
NO
The failure is duplicated. Replace ECT sensor 1 - Refer to: ECT Sensor 2 Removal and Installation, or ECT Sensor 1 Removal and Installation (V6), .
- Problem verification (high temperature)
-1. Turn the vehicle to the OFF (LOCK) mode.
- 2. Open the hood, and let the engine cool for 3 hours.
- 3. Turn the vehicle to the ON mode.
- 4. Check ECT SENSOR 1 in the DATA LIST with the HDS.
Signal Current conditions Values Unit ECT SENSOR 1 Does ECT SENSOR 1 change 18 °F (10 °C) or more?
YES
Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at ECT sensor 1 and the PCM. If the freeze data/on-board snapshot of this DTC is recorded, try to reproduce the failure under the same conditions with the freeze data/on-board snapshot.
NO
The failure is duplicated. Replace ECT sensor 1 - Refer to: ECT Sensor 2 Removal and Installation, or ECT Sensor 1 Removal and Installation (V6), .