OBD code P0117 indicates a problem with the Engine Coolant Temperature (ECT) sensor circuit.
Symptoms include the Engine Light being ON.
Causes may include low engine coolant level, faulty ECT sensor, or issues with the wiring harness.
This issue is not severe but should be addressed promptly.
To fix, inspect and repair any damaged components or wiring connections related to the ECT sensor circuit.
| Repair Importance Level | 10.0 (Out of 10) |
| Estimated Repair Time | Approximately 1.0 hour |
| Repair Difficulty Level | 6.67 (Out of 10) |
Symptoms of the p0117 OBD Code
The vehicle may experience issues related to engine coolant temperature sensor circuit low input.
- Symptoms: Engine Light ON.
- Temperature gauge reading may be incorrect.
- Engine may run rough or stall.
Causes of the p0117 OBD Code
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Possible reasons for fault code P0117 include issues with the engine coolant temperature sensor.
- P0117 can be caused by low engine coolant level.
- A faulty Engine Coolant Thermostat.
- A faulty Engine Coolant Temperature (ECT) sensor.
- An Engine Coolant Temperature sensor harness that is open or shorted.
- An Engine Coolant Temperature sensor circuit with poor electrical connection.
- Or a faulty Engine Control Module (ECM).
Fixing Error Code p0117 Step By Step
Replace faulty engine coolant temperature sensor to address P0117 code.
- To fix OBDII code P0117, first, review the possible causes related to the engine coolant temperature (ECT) sensor circuit.
- Visually inspect the wiring harness and connectors for any signs of damage.
- Check the ECT sensor connector pins for corrosion, bending, or breakage.
- Replace the ECT sensor if any issues are found.
- Clear the fault code using a scan tool and test drive the vehicle to verify the repair.
Cost Of Fixing p0117 Fault Code
Diagnosing and repairing fault code P0117 typically involves testing and replacing the engine coolant temperature sensor.
The cost to diagnose and fix OBD code P0117 typically ranges from $75 to $150, with an estimated repair time of 1. 0 hour.
Costs depend on labor rates, shop location, and the complexity of the repair needed.
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Details of the p0117 OBD Code
P0117 indicates a low engine coolant temperature sensor voltage.
OBD code P0117 indicates a fault with the Engine Coolant Temperature (ECT) sensor circuit.
This code is triggered when the ECT sensor sends a signal to the Engine Control Module (ECM) that is outside of the normal operating range.
The ECM uses this signal to determine the engine coolant temperature, which is crucial for proper fuel delivery and ignition timing.
If the ECT sensor is faulty or there is an issue with the circuit, the ECM will set a P0117 trouble code.
Mechanic’s Tech Notes
Code P0117 indicates a low engine coolant temperature sensor voltage input.
OBDII code P0117 indicates a low input from the engine coolant temperature (ECT) sensor.
To diagnose, use a multimeter to test the ECT sensor’s resistance and compare it to specifications.
Check for any loose connections or damaged wiring in the ECT circuit.
Scan tools can help monitor ECT sensor data while the engine is running to see if the sensor is providing accurate readings.
If the sensor is faulty, replace it following manufacturer guidelines.
Ensure the cooling system is functioning correctly to prevent false readings.
FAQ
OBD code P0117 indicates an issue with the Engine Coolant Temperature (ECT) sensor circuit. Check coolant level, thermostat, sensor, wiring, and connectors for faults.
Common symptoms of OBD code P0117 include Engine Light ON, caused by issues like low coolant level, faulty thermostat, ECT sensor, or wiring problems. Fix involves inspecting and repairing related components.
Diagnose and fix OBD code P0117 by checking engine coolant level, thermostat, ECT sensor, wiring harness, connectors, and ECM for faults. Repair as needed.
Wrap Up
If your check engine light is on and your engine temperature gauge is reading incorrectly, you might be dealing with OBDII code P0117. This code usually indicates a fault with the Engine Coolant Temperature (ECT) sensor, wiring issues, or low coolant levels.
To address OBDII code P0117, start by checking the ECT sensor and its wiring harness for any signs of damage or corrosion.
Test the sensor’s resistance and ensure proper connection at the sensor and the Engine Control Module (ECM).
Replace the ECT sensor if necessary to resolve the issue.
