AutoCodes – Isuzu – P0117 Isuzu

P0117 Isuzu Code - Engine Coolant Temperature Sensor 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 Thermostat, Faulty Engine Coolant Temperature (ECT) sensor. 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 Isuzu indicates Engine Coolant Temperature Sensor Circuit Low Voltage.
Common causes: Common causes include Low engine coolant level, Faulty Engine Coolant Thermostat, Faulty Engine Coolant Temperature (ECT) sensor.
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 9,673

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 Sep 07, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0117 Isuzu 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 that is sensitive to the change in temperature. The electrical resistance of the thermistor decreases as temperature increases. The Diagnostic Trouble Code (DTC) will be set when an excessively low voltage from the sensor is sent to ECM.

OBDII Code P0117 Isuzu - Engine Coolant Temperature Sensor Circuit Low Voltage - AutoCodes.com — P0117 Isuzu Code - Engine Coolant Temperature Sensor Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P0117 Isuzu?

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

How to Fix the DTC P0117 Isuzu?

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 is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0117 Isuzu 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 Isuzu code?

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Need Help with the 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 Isuzu Code

1. What are the common symptoms of OBDII code P0117 in an Isuzu?

- Common symptoms include issues with engine performance, such as poor fuel economy, rough idling, or difficulty starting the engine.

2. What does the OBDII code P0117 in an Isuzu indicate?

- The code P0117 indicates a problem with the Engine Coolant Temperature (ECT) sensor circuit, specifically low voltage being detected.

3. What are the possible causes of OBDII code P0117 in an Isuzu?

- Possible causes include a faulty ECT sensor, damaged wiring or connectors in the ECT circuit, low coolant level, or a problem with the engine's cooling system.

4. How can I diagnose the issue causing OBDII code P0117 in my Isuzu?

- To diagnose the issue, you can use a multimeter to test the ECT sensor's resistance, check the wiring and connectors for any damage, and inspect the coolant level and system for any abnormalities.

5. Can driving with OBDII code P0117 in an Isuzu cause further damage to the vehicle?

- While driving with the code P0117 may not immediately cause serious damage, it can lead to poor engine performance and potential overheating issues if left unresolved.

6. How can I repair OBDII code P0117 in my Isuzu?

- Repairing the code P0117 typically involves replacing the faulty ECT sensor, repairing any damaged wiring or connectors, ensuring proper coolant levels, and checking the cooling system for any issues.

7. Is it safe to continue driving my Isuzu with OBDII code P0117 present?

- It is generally not recommended to continue driving with the code P0117 present, as it can lead to potential engine performance issues and overheating problems.

8. Can a DIY enthusiast fix OBDII code P0117 in an Isuzu?

- Yes, a DIY enthusiast with the necessary tools and knowledge of automotive repair can often fix the code P0117 by following step-by-step diagnostic procedures and replacing any faulty components.

9. How long does it typically take to repair OBDII code P0117 in an Isuzu?

- The repair time for the code P0117 can vary depending on the cause of the issue, but it usually takes a few hours to diagnose and fix the problem.

10. Will resetting the OBDII system clear the code P0117 in my Isuzu?

- Resetting the OBDII system may temporarily clear the code P0117, but if the underlying issue is not addressed, the code is likely to reappear after some time.