Diagnostic Aids
- Test the ECT sensor at various temperature levels in order to evaluate the possibility of a skewed sensor. A skewed sensor can result in a driveability condition.
- If the vehicle has set overnight, the ECT sensor and the intake air temperature (IAT) sensor values should display within 3°C (5°F).
- For an intermittent condition, refer to Intermittent Conditions .
DTC P1114
| Step | Action | Yes | No |
|---|---|---|---|
| Schematic Reference: Engine Controls Schematics Connector End View Reference: Engine Controls Connector End Views |
|||
| 1 | Did you perform the Diagnostic System Check - Engine Controls? | Go to Step 2 | Go to Diagnostic System Check - Engine Controls |
| 2 | Observe the DTC information with a scan tool. Is DTC P0117 set? |
Go to DTC P0117 | Go to Step 3 |
| 3 | Observe the Engine Coolant Temperature (ECT) sensor parameter with a scan tool while moving the ECT sensor connector and the engine control module (ECM) connector. Refer to Inducing Intermittent Fault Conditions
in Wiring Systems. Does the scan tool indicate an abrupt change in value? |
Go to Step 5 | Go to Step 4 |
| 4 | Observe the ECT sensor parameter with a scan tool while moving the wiring harness between the ECT sensor and the ECM. Refer to Inducing Intermittent Fault Conditions
in Wiring Systems. Does the scan tool indicate an abrupt change in value? |
Go to Step 6 | Go to Diagnostic Aids |
| 5 | Repair the connector/terminal as necessary. Refer to Connector Repairs
in Wiring Systems. Did you complete the repair? |
Go to Step 7 | - |
| 6 | Repair the harness/wiring as necessary. Refer to Wiring Repairs
in Wiring Systems. Did you complete the repair? |
Go to Step 7 | - |
| 7 |
|
Go to Step 2 | Go to Step 8 |
| 8 | Observe the Capture Info with a scan tool. Are there any DTCs that have not been diagnosed? |
Go to Diagnostic Trouble Code (DTC) List | System OK |