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Engine-Codes – Nissan – P0117 2002 Nissan Altima Sedan

P0117 2002 Nissan Altima Sedan Code - Engine Coolant Temperature Circuit Low

Quick Answer

The P0117 code for a 2002 Nissan Altima Sedan indicates an issue with the Engine Coolant Temperature Circuit being too low. Common causes include Faulty engine coolant temperature sensor, Damaged wiring or connectors in the coolant temperature circuit, Malfunctioning 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 2002 Nissan Altima Sedan indicates Engine Coolant Temperature Circuit Low.
Common causes
Common causes include Faulty engine coolant temperature sensor, Damaged wiring or connectors in the coolant temperature circuit, Malfunctioning 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 2002 Nissan Altima Sedan Description

The P0117 code for a 2002 Nissan Altima Sedan indicates an issue with the Engine Coolant Temperature Circuit being too low. This code is triggered when the Engine Control Module (ECM) detects that the engine coolant temperature sensor signal is lower than the normal operating range. The engine coolant temperature sensor is responsible for measuring the temperature of the coolant in the engine and sending this information to the ECM. This data is crucial for the ECM to adjust fuel mixture, ignition timing, and other engine functions to ensure optimal performance and efficiency.

OBDII Code P0117 2002 Nissan Altima Sedan - Engine Coolant Temperature Circuit Low
P0117 2002 Nissan Altima Sedan Code - Engine Coolant Temperature Circuit Low

Common Causes of P0117 2002 Nissan Altima Sedan

  1. Faulty engine coolant temperature sensor
  2. Damaged wiring or connectors in the coolant temperature circuit
  3. Malfunctioning ECM
  4. Low coolant levels or coolant leaks
  5. Corrosion or buildup on the coolant temperature sensor

Symptoms of P0117 2002 Nissan Altima Sedan

  1. Engine stalling or rough idling
  2. Poor acceleration and reduced engine performance
  3. Increased fuel consumption
  4. Check Engine Light illuminated on the dashboard

How to Fix P0117 2002 Nissan Altima Sedan

  1. Begin by diagnosing the issue using a diagnostic scanner to read the trouble code and pinpoint the exact cause of the low engine coolant temperature signal.
  2. Inspect the engine coolant temperature sensor, wiring, and connectors for any signs of damage or corrosion. Replace any faulty components as needed.
  3. Check the coolant level and inspect for any leaks that could be causing the low temperature readings. Top up the coolant if necessary and repair any leaks.
  4. Clear the trouble code from the ECM using the diagnostic scanner and perform a test drive to ensure that the issue has been resolved.
  5. If the problem persists, further diagnostic tests may be required to identify any underlying issues with the ECM or other components.

Cost to Fix P0117 2002 Nissan Altima Sedan

The typical repair costs for addressing the P0117 code on a 2002 Nissan Altima Sedan can range from $100 to $300, depending on the specific cause of the issue and the cost of replacement parts. Labor costs can vary between $80 and $150 per hour at most auto repair shops. It is advisable to consult with a professional mechanic to get a more accurate estimate based on your vehicle's make and model, as well as the extent of the repairs needed.

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 2002 Nissan Altima Sedan Code

1. What are the common symptoms of OBDII code P0117 on a 2002 Nissan Altima Sedan?

The common symptoms of OBDII code P0117 on a 2002 Nissan Altima Sedan include engine overheating, poor fuel economy, and potential issues with the vehicle's cooling system.

2. What does the OBDII code P0117 indicate on a 2002 Nissan Altima Sedan?

OBDII code P0117 on a 2002 Nissan Altima Sedan indicates a problem with the Engine Coolant Temperature (ECT) sensor circuit, specifically that the temperature reading is lower than expected.

3. What are some possible causes of OBDII code P0117 on a 2002 Nissan Altima Sedan?

Possible causes of OBDII code P0117 on a 2002 Nissan Altima Sedan include a faulty ECT sensor, damaged wiring or connectors in the ECT circuit, or a problem with the vehicle's Engine Control Module (ECM).

4. How can I diagnose the cause of OBDII code P0117 on my 2002 Nissan Altima Sedan?

To diagnose the cause of OBDII code P0117 on a 2002 Nissan Altima Sedan, you can use a scan tool to check the ECT sensor readings, inspect the wiring and connectors for damage, and test the ECM for proper functioning.

5. Can I drive my 2002 Nissan Altima Sedan with OBDII code P0117?

It is not recommended to drive your 2002 Nissan Altima Sedan with OBDII code P0117, as it can lead to engine overheating and potential damage. It is best to address the issue promptly to avoid further complications.

6. How can I repair OBDII code P0117 on my 2002 Nissan Altima Sedan?

To repair OBDII code P0117 on a 2002 Nissan Altima Sedan, you may need to replace the ECT sensor, repair or replace damaged wiring or connectors, or reprogram the ECM if necessary.

7. Is OBDII code P0117 a serious issue on a 2002 Nissan Altima Sedan?

OBDII code P0117 should be addressed promptly on a 2002 Nissan Altima Sedan to prevent potential engine damage due to incorrect temperature readings. While it may not cause immediate harm, it can lead to other issues if left unresolved.

8. Can a DIY enthusiast fix OBDII code P0117 on a 2002 Nissan Altima Sedan?

Depending on your mechanical skills and access to tools, a DIY enthusiast may be able to fix OBDII code P0117 on a 2002 Nissan Altima Sedan by following repair guides and instructions specific to the issue.

9. How much does it cost to repair OBDII code P0117 on a 2002 Nissan Altima Sedan?

The cost to repair OBDII code P0117 on a 2002 Nissan Altima Sedan can vary depending on the exact cause of the issue, parts needed for replacement, and whether you choose to do the repair yourself or take it to a professional mechanic.

10. Will resetting the OBDII code P0117 on my 2002 Nissan Altima Sedan make it go away permanently?

Resetting OBDII code P0117 on a 2002 Nissan Altima Sedan may temporarily clear the code, but if the underlying issue is not addressed, the code is likely to reappear. It is important to diagnose and repair the root cause of the problem to prevent recurrence.

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