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Engine-Codes – Honda – P0117 1997 Honda Civic

P0117 1997 Honda Civic Code - Engine Coolant Temperature Sensor 1 Circuit Low Voltage

Quick Answer

The P0117 code for a 1997 Honda Civic refers to the Engine Coolant Temperature Sensor 1 Circuit Low Voltage. Common causes include Faulty engine coolant temperature sensor, Damaged sensor wiring harness, Corroded or loose connector. 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 1997 Honda Civic indicates Engine Coolant Temperature Sensor 1 Circuit Low Voltage.
Common causes
Common causes include Faulty engine coolant temperature sensor, Damaged sensor wiring harness, Corroded or loose connector.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 11, 2024
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Code P0117 1997 Honda Civic Description

The P0117 code for a 1997 Honda Civic refers to the Engine Coolant Temperature Sensor 1 Circuit Low Voltage. This code indicates that the engine coolant temperature sensor is sending a signal to the engine control module (ECM) that is lower than the expected voltage range. The engine coolant temperature sensor plays a crucial role in monitoring the temperature of the engine coolant, which is essential for regulating the engine's operating temperature and ensuring optimal performance.

OBDII Code P0117 1997 Honda Civic - Engine Coolant Temperature Sensor 1 Circuit Low Voltage
P0117 1997 Honda Civic Code - Engine Coolant Temperature Sensor 1 Circuit Low Voltage

Common Causes of P0117 1997 Honda Civic

  1. Faulty engine coolant temperature sensor
  2. Damaged sensor wiring harness
  3. Corroded or loose connector
  4. ECM issues
  5. Coolant leakage affecting sensor readings

Symptoms of P0117 1997 Honda Civic

  1. Poor fuel efficiency
  2. Rough idling or stalling
  3. Difficulty starting the engine
  4. Engine overheating
  5. Illumination of the check engine light

How to Fix P0117 1997 Honda Civic

  1. Begin by conducting a visual inspection of the engine coolant temperature sensor, wiring harness, and connector for any signs of damage or corrosion.
  2. Use a multimeter to test the voltage output of the coolant temperature sensor to determine if it is within the expected range.
  3. If the sensor is faulty, replace it with a new one and ensure proper installation.
  4. Check the wiring harness and connector for any issues and repair or replace them as needed.
  5. Clear the diagnostic trouble codes from the ECM using a scan tool and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P0117 1997 Honda Civic

The cost estimate for repairing the P0117 code on a 1997 Honda Civic can vary depending on the specific cause of the issue and the price of parts and labor in your area. In general, replacing the engine coolant temperature sensor can cost between $50 and $150, while repairing or replacing the wiring harness and connector can add additional costs. Labor rates at auto repair shops typically range between $80 and $150 per hour, so the total repair cost can range from $150 to $500 or more. It's advisable to obtain quotes from local auto repair shops to get a more accurate estimate for your specific situation.

What does this mean?

Tech Notes for P0117 1997 Honda Civic

First check to see if there are any coolant leaks and if the thermostat is opening, if problem is still there replace the coolant temperature sensor.

When is the Code Detected?

An excessively low voltage from the sensor is sent to ECM.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P0117 1997 Honda Civic Code

1. What are the common symptoms of OBDII code P0117 on a 1997 Honda Civic?

The common symptoms of OBDII code P0117 on a 1997 Honda Civic include issues with the engine temperature gauge reading incorrectly, poor fuel economy, and potential stalling or rough idle.

2. What causes the OBDII code P0117 on a 1997 Honda Civic?

The most common cause of OBDII code P0117 on a 1997 Honda Civic is a malfunctioning engine coolant temperature sensor or a problem with the sensor circuit, resulting in low voltage readings.

3. How can I diagnose the OBDII code P0117 on my 1997 Honda Civic?

To diagnose OBDII code P0117 on a 1997 Honda Civic, you can use a diagnostic scan tool to check for the specific trouble code. Additionally, you can test the engine coolant temperature sensor and its wiring for proper function.

4. Can a faulty thermostat cause OBDII code P0117 on a 1997 Honda Civic?

Yes, a faulty thermostat can potentially cause OBDII code P0117 on a 1997 Honda Civic. If the thermostat is stuck open or closed, it can affect the engine coolant temperature sensor readings, triggering the low voltage code.

5. What are some repair tips for fixing OBDII code P0117 on a 1997 Honda Civic?

Some repair tips for fixing OBDII code P0117 on a 1997 Honda Civic include checking and replacing the engine coolant temperature sensor, inspecting and repairing any damaged wiring or connectors, and ensuring the cooling system is functioning properly.

6. Can driving with OBDII code P0117 on a 1997 Honda Civic cause further damage?

Driving with OBDII code P0117 on a 1997 Honda Civic can potentially cause issues related to engine performance and fuel efficiency. It is recommended to address the underlying problem promptly to prevent any further damage.

7. Is it safe to continue driving my 1997 Honda Civic with OBDII code P0117?

While it may be possible to drive your 1997 Honda Civic with OBDII code P0117, it is not recommended as it can lead to potential engine problems and decreased fuel efficiency. It is best to address the issue as soon as possible.

8. Can I reset OBDII code P0117 on my 1997 Honda Civic by disconnecting the battery?

Disconnecting the battery may temporarily clear OBDII code P0117 on a 1997 Honda Civic, but the code is likely to reappear if the underlying issue with the engine coolant temperature sensor or circuit is not resolved.

9. How much does it typically cost to repair OBDII code P0117 on a 1997 Honda Civic?

The cost to repair OBDII code P0117 on a 1997 Honda Civic can vary depending on the specific cause of the issue. Generally, replacing the engine coolant temperature sensor or repairing the sensor circuit may cost between $100 to $300, including parts and labor.

10. Can a DIY enthusiast fix OBDII code P0117 on a 1997 Honda Civic?

A DIY enthusiast with automotive repair knowledge and the right tools can potentially fix OBDII code P0117 on a 1997 Honda Civic by replacing the engine coolant temperature sensor or repairing the sensor circuit. However, if unsure, it's best to consult a professional mechanic for assistance.

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