OBD code P0116 indicates an issue 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 ECM issues.
This code is not extremely serious but should be addressed promptly.
A possible fix is to inspect and repair any damaged components in 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) |
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Symptoms of the p0116 OBD Code
The vehicle may experience issues related to engine coolant temperature sensor circuit performance (P0116).
- With OBD code P0116, the Engine Light may come on.
- The engine may run rough or stall.
- The vehicle may have difficulty starting.
- The temperature gauge may show incorrect readings.
- The engine may overheat.
Causes of the p0116 OBD Code
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P0116 code typically indicates an issue with the engine coolant temperature sensor circuit.
- P0116 can be caused by a 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 a poor electrical connection.
- Or a faulty Engine Control Module (ECM).
Fixing Error Code p0116 Step By Step
Replace faulty engine coolant temperature sensor to resolve P0116 code.
- To fix OBDII code P0116, 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 or corrosion.
- Check the ECT sensor connector pins for being broken, bent, or pushed out.
- Replace the ECT sensor if any issues are found during inspection.
- Clear the fault code using a scan tool and test drive the vehicle to verify the repair.
Cost Of Fixing p0116 Fault Code
Diagnosing and repairing fault code P0116 typically involves testing and replacing the engine coolant temperature sensor.
The cost to diagnose and fix OBD code P0116 typically ranges from $75 to $150, with an estimated repair time of 1. 0 hour.
Costs depend on labor rates, shop fees, and the complexity of the repair.
Details of the p0116 OBD Code
P0116 indicates an issue with the engine coolant temperature sensor circuit.
OBD code P0116 means that the Engine Coolant Temperature (ECT) sensor circuit range/performance problem has been detected.
This code is triggered by the Engine Control Module (ECM) when it receives a signal from the ECT sensor that is outside the normal operating range.
The ECT sensor is responsible for providing the ECM with information about the engine’s coolant temperature, which is crucial for proper fuel delivery and ignition timing.
When the ECT sensor malfunctions or sends inaccurate signals, it can lead to drivability issues and poor engine performance.
Mechanic’s Tech Notes
Code P0116 indicates an issue with the engine coolant temperature sensor circuit.
To diagnose and fix OBDII code P0116, start by checking the Engine Coolant Temperature (ECT) sensor circuit.
Use a voltmeter to test the ECT sensor’s resistance and compare it to specifications.
Inspect the wiring harness and connector for any damage, corrosion, or loose connections.
Ensure the ECT sensor is functioning correctly and providing accurate readings to the Engine Control Module (ECM).
If necessary, replace the ECT sensor and clear the fault code with a scan tool.
Perform a test drive to confirm the issue is resolved.
FAQ
OBD code P0116 indicates an issue with the Engine Coolant Temperature (ECT) sensor circuit. Check for low coolant level, faulty thermostat, sensor, or wiring/connection problems.
Common symptoms for fault code P0116 include Engine Light ON, caused by low coolant level, faulty thermostat, ECT sensor, or wiring issues. Inspect and repair as needed.
Diagnose and repair OBD code P0116 by checking engine coolant level, thermostat, ECT sensor, harness, connections, and ECM. Inspect wiring for damage or corrosion.
Wrap Up
If your check engine light is on and your engine is running hotter than normal, along with OBDII code P0116, it could be caused by a faulty engine coolant temperature (ECT) sensor, a malfunctioning thermostat, low coolant level, or issues with the ECT sensor circuit.
To address OBDII code P0116, 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.
Replace the ECT sensor if necessary to resolve the issue.
