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P0117 2004 Infiniti G35 Code - Engine Coolant Temperature Circuit Low

Quick Answer

The P0117 code for a 2004 Infiniti G35 indicates an issue with the Engine Coolant Temperature Circuit being lower than expected. Common causes include Faulty Engine Coolant Temperature (ECT) sensor, Wiring or connection issues in the ECT circuit, Malfunctioning Engine Control Module (ECM). 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 2004 Infiniti G35 indicates Engine Coolant Temperature Circuit Low.
Common causes
Common causes include Faulty Engine Coolant Temperature (ECT) sensor, Wiring or connection issues in the ECT circuit, Malfunctioning Engine Control Module (ECM).
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 2004 Infiniti G35 Description

The P0117 code for a 2004 Infiniti G35 indicates an issue with the Engine Coolant Temperature Circuit being lower than expected. The Engine Coolant Temperature (ECT) sensor is responsible for monitoring the temperature of the engine coolant and sending this information to the engine control module (ECM). The ECM uses this data to adjust fuel delivery and ignition timing for optimal engine performance and efficiency. When the ECT sensor detects a temperature that is lower than expected, it triggers the P0117 code.

OBDII Code P0117 2004 Infiniti G35 - Engine Coolant Temperature Circuit Low
P0117 2004 Infiniti G35 Code - Engine Coolant Temperature Circuit Low

Common Causes of P0117 2004 Infiniti G35

  1. Faulty Engine Coolant Temperature (ECT) sensor
  2. Wiring or connection issues in the ECT circuit
  3. Malfunctioning Engine Control Module (ECM)
  4. Low engine coolant level
  5. Air pockets in the cooling system

Symptoms of P0117 2004 Infiniti G35

  1. Check Engine Light illuminated on the dashboard
  2. Inaccurate temperature readings on the temperature gauge
  3. Poor fuel efficiency
  4. Engine overheating
  5. Rough idle or stalling

How to Fix P0117 2004 Infiniti G35

  1. Begin by diagnosing the root cause of the issue by using a scan tool to read the P0117 code and checking the ECT sensor for proper operation.
  2. Inspect the wiring and connections in the ECT circuit for any damage or corrosion and repair or replace as necessary.
  3. Test the ECM for proper functionality and replace if needed.
  4. Ensure the engine coolant level is correct and bleed any air pockets from the cooling system.
  5. Clear the code from the ECM's memory and road test the vehicle to confirm the repair.

Cost to Fix P0117 2004 Infiniti G35

The typical repair costs for addressing a P0117 code in a 2004 Infiniti G35 can range from $100 to $300, depending on the specific cause of the issue and the required parts and labor. It is important to note that diagnostic time and labor rates at auto repair shops can vary, so it is advisable to check with local establishments for a more accurate estimate.

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 2004 Infiniti G35 Code

1. What are the common symptoms of OBDII code P0117 in a 2004 Infiniti G35?

The common symptoms of P0117 in a 2004 Infiniti G35 include poor fuel economy, rough idling, engine overheating, and the temperature gauge reading lower than normal.

2. What are the possible causes of the Engine Coolant Temperature Circuit Low code in a 2004 Infiniti G35?

Possible causes of P0117 in a 2004 Infiniti G35 include a faulty engine coolant temperature sensor, damaged wiring or connectors, low coolant level, or a malfunctioning thermostat.

3. How can I diagnose the cause of OBDII code P0117 in my 2004 Infiniti G35?

You can diagnose P0117 by checking the engine coolant level, inspecting the sensor and its wiring for damage, testing the sensor's resistance, and scanning for any other related trouble codes.

4. Can a faulty thermostat trigger the P0117 code in a 2004 Infiniti G35?

Yes, a faulty thermostat in a 2004 Infiniti G35 can trigger the P0117 code by causing the engine coolant temperature to read lower than normal, signaling a circuit low condition.

5. What are some repair tips for fixing the Engine Coolant Temperature Circuit Low issue in a 2004 Infiniti G35?

Repair tips for P0117 in a 2004 Infiniti G35 include replacing the engine coolant temperature sensor, checking and repairing any damaged wiring or connectors, ensuring the coolant level is adequate, and replacing a faulty thermostat if necessary.

6. Can driving with the P0117 code illuminated cause further damage to my 2004 Infiniti G35?

Continued driving with the P0117 code illuminated in a 2004 Infiniti G35 can lead to potential engine damage due to incorrect temperature readings and improper fuel mixture, so it's recommended to address the issue promptly.

7. Will resetting the OBDII code P0117 in a 2004 Infiniti G35 make the issue go away?

Simply resetting the P0117 code in a 2004 Infiniti G35 may temporarily clear the warning light, but the underlying issue causing the circuit low condition will persist and should be properly diagnosed and repaired.

8. How much does it typically cost to repair the Engine Coolant Temperature Circuit Low problem in a 2004 Infiniti G35?

The cost to repair P0117 in a 2004 Infiniti G35 can vary depending on the exact cause, but it may range from $100 to $300 for parts and labor, excluding any additional diagnosis or repairs.

9. Can a DIY enthusiast fix the P0117 code issue in a 2004 Infiniti G35 at home?

A DIY enthusiast with proper tools and knowledge can potentially fix the P0117 code issue in a 2004 Infiniti G35 at home by following repair guides and procedures specific to their vehicle.

10. Is it safe to continue driving my 2004 Infiniti G35 with the Check Engine light on due to the P0117 code?

It is not recommended to continue driving your 2004 Infiniti G35 with the Check Engine light on due to the P0117 code, as it can lead to potential engine damage and worsen the issue over time.

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