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P1238 Nissan Code - Electric Throttle Control Actuator

Quick Answer

The P1238 diagnostic trouble code for Nissan vehicles indicates a problem with the Electric Throttle Control Actuator, which is a crucial component of the vehicle's electronic throttle control system. Common causes include Faulty Electric Throttle Control Actuator, Wiring or connector issues in the throttle control circuit, Electronic control module (ECM) failure. 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
P1238 Nissan indicates Electric Throttle Control Actuator.
Common causes
Common causes include Faulty Electric Throttle Control Actuator, Wiring or connector issues in the throttle control circuit, Electronic control module (ECM) failure.
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 06, 2024
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Code P1238 Nissan Description

The P1238 diagnostic trouble code for Nissan vehicles indicates a problem with the Electric Throttle Control Actuator, which is a crucial component of the vehicle's electronic throttle control system. This system is responsible for managing the engine's air intake and fuel delivery by adjusting the throttle valve's position based on driver input from the accelerator pedal. When this actuator malfunctions, it can lead to issues with engine performance, fuel efficiency, and overall drivability.

OBDII Code P1238 Nissan - Electric Throttle Control Actuator
P1238 Nissan Code - Electric Throttle Control Actuator

Common Causes of P1238 Nissan

  1. Faulty Electric Throttle Control Actuator
  2. Wiring or connector issues in the throttle control circuit
  3. Electronic control module (ECM) failure
  4. Carbon buildup on the throttle body
  5. Environmental factors such as moisture or corrosion affecting the actuator

Symptoms of P1238 Nissan

  1. Engine idling roughly or stalling
  2. Delayed throttle response or lack of acceleration
  3. Illumination of the check engine light
  4. Reduced fuel efficiency
  5. Limp mode activation, limiting vehicle speed

How to Fix P1238 Nissan

  1. Diagnose the specific cause of the P1238 code using a professional OBD-II scanner.
  2. Inspect the Electric Throttle Control Actuator for any signs of damage or malfunction.
  3. Check the wiring and connectors in the throttle control circuit for loose connections or corrosion.
  4. Clean the throttle body and remove any carbon buildup that may be affecting actuator performance.
  5. Replace the Electric Throttle Control Actuator if it is found to be faulty and reprogram the ECM if necessary.

Cost to Fix P1238 Nissan

The cost of repairing a P1238 Nissan code related to the Electric Throttle Control Actuator can vary depending on the specific cause of the issue and the extent of the repairs needed. On average, the parts for this repair can range from $200 to $500, while labor costs can add another $100 to $300. Overall, the total repair cost for this issue may fall between $300 and $800. It's important to note that prices can fluctuate based on location, the vehicle's make and model, and the shop's labor rates. It is advisable to obtain quotes from multiple repair facilities to find the best option for your specific situation.

When is the Code Detected?

The P2119 code is detected when electric throttle control actuator does not function properly due to the return spring malfunction or Engine Control Module (ECM) detect the throttle valve is stuck open.

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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 P1238 Nissan Code

1. What are common symptoms of OBDII code P1238 in a Nissan related to the Electric Throttle Control Actuator?

- Common symptoms include reduced engine power, acceleration hesitation, and illuminated Check Engine Light.

2. What typically causes the OBDII code P1238 in a Nissan related to the Electric Throttle Control Actuator?

- The code is often triggered by a malfunction in the electric throttle control actuator, wiring issues, or a faulty throttle position sensor.

3. How can I diagnose the cause of OBDII code P1238 in my Nissan?

- Diagnosis involves using a scan tool to read the code, checking the throttle control actuator and related components for damage or wear, and testing the throttle position sensor.

4. Can I drive my Nissan with OBDII code P1238 related to the Electric Throttle Control Actuator?

- It is not recommended to drive the vehicle with this code as it can lead to unsafe driving conditions and potential engine damage.

5. What are the repair options for OBDII code P1238 in a Nissan?

- Repair options include replacing the electric throttle control actuator, repairing or replacing damaged wiring, and calibrating the throttle position sensor.

6. Are there any DIY tips for fixing OBDII code P1238 in a Nissan?

- DIY tips include checking for loose or damaged wiring, cleaning the throttle body, and ensuring proper connection of the throttle control actuator.

7. How much does it typically cost to repair OBDII code P1238 in a Nissan at a mechanic?

- Repair costs can vary depending on the exact cause of the code, but it may range from $200 to $500 for parts and labor.

8. Can resetting the OBDII code P1238 in a Nissan temporarily fix the issue?

- Resetting the code may temporarily clear the Check Engine Light, but it will not fix the underlying issue causing the code.

9. Is OBDII code P1238 related to the Electric Throttle Control Actuator a common problem in Nissan vehicles?

- The code is not extremely common but can occur in Nissan vehicles with electronic throttle control systems.

10. How can I prevent OBDII code P1238 related to the Electric Throttle Control Actuator in my Nissan?

- Regular maintenance, such as cleaning the throttle body and checking the throttle control system, can help prevent this code from appearing.

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