AutoCodes – Honda – P0117 1997 Honda Civic

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

Quick Answer

The Engine Coolant Temperature (ECT) sensor is used to detect the engine coolant temperature. Common causes include Low engine coolant level, Faulty Engine Coolant Temperature (ECT) sensor, Faulty engine coolant thermostat. 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 Low engine coolant level, Faulty Engine Coolant Temperature (ECT) sensor, Faulty engine coolant thermostat.
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 Popularity 8,132

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jun 14, 2020

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P0117 1997 Honda Civic Description

The Engine Coolant Temperature (ECT) sensor is used to detect the engine coolant temperature. The sensor modifies a voltage signal from the Engine Control Module (ECM). The modified signal returns to the ECM as the engine coolant temperature input. The sensor uses a thermistor which is sensitive to the change in temperature. The electrical resistance of the thermistor decreases as temperature increases.

OBDII Code P0117 1997 Honda Civic - Engine Coolant Temperature Sensor 1 Circuit Low Voltage - AutoCodes.com — P0117 1997 Honda Civic Code - Engine Coolant Temperature Sensor 1 Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P0117 1997 Honda Civic?

Low engine coolant level
Faulty Engine Coolant Temperature (ECT) sensor
Faulty engine coolant thermostat
Engine Coolant Temperature (ECT) sensor harness is open or shorted
Engine Coolant Temperature (ECT) sensor circuit poor electrical connection

How to Fix the DTC P0117 1997 Honda Civic?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What does this mean?

Code Tech Notes

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.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0117 1997 Honda Civic code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P0117 1997 Honda Civic code?

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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.