P0117 Mitsubishi Code - Engine Coolant Temperature Sensor Low Input
Quick Answer
The P0117 code for Mitsubishi vehicles indicates that the Engine Coolant Temperature Sensor is sending a low input signal to the Engine Control Module (ECM). Common causes include Faulty Engine Coolant Temperature Sensor, Corrosion or damage to the sensor wiring or connector, Coolant leakage affecting sensor readings. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P0117 Mitsubishi indicates Engine Coolant Temperature Sensor Low Input.
- Common causes
- Common causes include Faulty Engine Coolant Temperature Sensor, Corrosion or damage to the sensor wiring or connector, Coolant leakage affecting sensor readings.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
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Code P0117 Mitsubishi Description
The P0117 code for Mitsubishi vehicles indicates that the Engine Coolant Temperature Sensor is sending a low input signal to the Engine Control Module (ECM). This sensor is responsible for monitoring the temperature of the engine coolant, providing crucial data for the ECM to adjust fuel delivery and ignition timing, among other functions. A low input signal suggests that the coolant temperature sensor is reading a temperature lower than what is expected, which can lead to various issues in the vehicle's performance.
Common Causes of P0117 Mitsubishi
- Faulty Engine Coolant Temperature Sensor
- Corrosion or damage to the sensor wiring or connector
- Coolant leakage affecting sensor readings
- Issues with the ECM receiving the sensor signal
- Coolant system air pockets interfering with sensor readings
Symptoms of P0117 Mitsubishi
- Check Engine Light illuminated on the dashboard
- Decreased fuel efficiency
- Engine running hotter or colder than normal
- Rough idling or engine stalling
- Engine misfires
How to Fix P0117 Mitsubishi
- Begin by diagnosing the issue with a scan tool to confirm the P0117 code.
- Inspect the Engine Coolant Temperature Sensor, wiring, and connector for any damage or corrosion.
- Replace the Engine Coolant Temperature Sensor if it is faulty or showing incorrect readings.
- Clear the diagnostic trouble codes and re-test the vehicle to ensure the issue is resolved.
- Verify proper operation of the sensor by monitoring coolant temperature readings and engine performance.
Cost to Fix P0117 Mitsubishi
The cost of repairing a P0117 code on a Mitsubishi vehicle can vary depending on the specific model, location, and labor rates. In general, replacing the Engine Coolant Temperature Sensor can cost between $100 and $200 for parts and labor. Additional diagnostic time may be necessary to pinpoint the exact cause of the issue, which can add to the overall cost. It is recommended to consult with a qualified mechanic or auto repair shop to get an accurate estimate for addressing this problem.
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Frequently Asked Questions about P0117 Mitsubishi Code
1. What does the OBDII code P0117 mean on a Mitsubishi?
P0117 indicates that the Engine Control Unit (ECU) has detected a low voltage signal from the Engine Coolant Temperature (ECT) sensor, suggesting a possible fault or issue with the sensor or its circuit.
2. What are the common symptoms of code P0117 in a Mitsubishi vehicle?
Symptoms may include poor engine performance, rough idling, increased fuel consumption, difficulty starting the engine, and the cooling fan running constantly.
3. What causes the P0117 code in Mitsubishi vehicles?
Common causes include a faulty ECT sensor, damaged wiring or connectors, a short circuit, low coolant levels, or a malfunctioning ECU.
4. Can I drive my Mitsubishi with the P0117 code?
Driving with a P0117 code is not recommended as it may lead to overheating or poor engine performance, potentially causing further damage.
5. How do I diagnose the P0117 code on a Mitsubishi?
Check the ECT sensor and its wiring for visible damage, measure the sensor's resistance with a multimeter, and verify the coolant level and condition.
6. How do I fix the P0117 code on my Mitsubishi?
Repairs may include replacing a faulty ECT sensor, repairing or replacing damaged wiring, refilling or flushing the coolant, or addressing issues with the ECU.
7. How much does it cost to fix a P0117 code on a Mitsubishi?
The cost varies depending on the repair. Replacing the ECT sensor typically costs $50–$200, but wiring or ECU repairs may increase the expense.
8. Can low coolant cause the P0117 code on a Mitsubishi?
Yes, low coolant levels can lead to improper sensor readings, which may trigger the P0117 code.
9. Will clearing the P0117 code solve the problem?
Clearing the code without addressing the underlying issue will not fix the problem, and the code is likely to return.
10. How can I prevent the P0117 code from occurring again?
Regularly inspect the cooling system, maintain proper coolant levels, and address any wiring or sensor issues promptly.
Discuss the causes and fixes for P0117 Mitsubishi OBDII Code
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I replace coolant sensor, i have 5volts at the sensor, i have grd at the sensor, unplug sensor, reads
260 deg, gauge shows normal. i check all the wiring from ect to pcm no problem found, can this still be a bad pcm?
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