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P2103 2012 Nissan Altima Sedan Code - Throttle Control Motor Relay Circuit Short

Quick Answer

The P2103 diagnostic trouble code (DTC) for a 2012 Nissan Altima Sedan indicates a problem with the throttle control motor relay circuit being shorted. Common causes include Damaged wiring in the throttle control motor relay circuit, Faulty throttle control motor relay, Malfunctioning throttle control motor. 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
P2103 2012 Nissan Altima Sedan indicates Throttle Control Motor Relay Circuit Short.
Common causes
Common causes include Damaged wiring in the throttle control motor relay circuit, Faulty throttle control motor relay, Malfunctioning throttle control motor.
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 16, 2024
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Code P2103 2012 Nissan Altima Sedan Description

The P2103 diagnostic trouble code (DTC) for a 2012 Nissan Altima Sedan indicates a problem with the throttle control motor relay circuit being shorted. The throttle control motor relay is responsible for controlling the operation of the throttle body in response to driver input. When this circuit is shorted, it can lead to issues with the throttle control system, affecting the vehicle's performance and drivability.

OBDII Code P2103 2012 Nissan Altima Sedan - Throttle Control Motor Relay Circuit Short
P2103 2012 Nissan Altima Sedan Code - Throttle Control Motor Relay Circuit Short

Common Causes of P2103 2012 Nissan Altima Sedan

  1. Damaged wiring in the throttle control motor relay circuit
  2. Faulty throttle control motor relay
  3. Malfunctioning throttle control motor
  4. Issue with the engine control module (ECM)
  5. Corrosion in the electrical connections

Symptoms of P2103 2012 Nissan Altima Sedan

  1. Check Engine Light illuminated
  2. Poor acceleration
  3. Rough idling
  4. Stalling
  5. Reduced fuel efficiency

How to Fix P2103 2012 Nissan Altima Sedan

  1. Diagnose the specific cause of the throttle control motor relay circuit short
  2. Replace any damaged wiring or electrical components
  3. Test and replace the faulty throttle control motor relay if necessary
  4. Verify the operation of the throttle control motor
  5. Clear the DTC and test drive the vehicle to ensure the issue has been resolved

Cost to Fix P2103 2012 Nissan Altima Sedan

The typical repair costs for addressing a throttle control motor relay circuit short on a 2012 Nissan Altima Sedan can range from $200 to $500, including parts and labor. However, it's important to note that the actual cost may vary depending on the specific diagnosis time and labor rates at auto repair shops. Rates can vary based on factors such as location, vehicle make and model, and engine type. It's recommended to inquire about local rates for a more accurate estimate.

What does this mean?

Tech Notes for P2103 2012 Nissan Altima Sedan

Check Fuse #43 (see picture)

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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 P2103 2012 Nissan Altima Sedan Code

1. What are the common symptoms of OBDII code P2103 in a 2012 Nissan Altima Sedan?

The common symptoms of OBDII code P2103 in a 2012 Nissan Altima Sedan include the vehicle going into limp mode, reduced engine power, and difficulty accelerating.

2. What does the OBDII code P2103 in a 2012 Nissan Altima Sedan indicate?

OBDII code P2103 in a 2012 Nissan Altima Sedan indicates an issue with the Throttle Control Motor Relay Circuit Short.

3. What are the possible causes of OBDII code P2103 in a 2012 Nissan Altima Sedan?

Possible causes of OBDII code P2103 in a 2012 Nissan Altima Sedan include a faulty throttle control motor relay, wiring issues, or a malfunctioning throttle body.

4. How can I diagnose the Throttle Control Motor Relay Circuit Short issue in a 2012 Nissan Altima Sedan?

Diagnosing the Throttle Control Motor Relay Circuit Short issue in a 2012 Nissan Altima Sedan involves checking the throttle control motor relay, inspecting the wiring for any damage, and testing the throttle body for proper function.

5. Can I drive my 2012 Nissan Altima Sedan with OBDII code P2103?

It is not recommended to drive your 2012 Nissan Altima Sedan with OBDII code P2103, as it can lead to further damage and safety issues due to reduced engine power.

6. How can I repair the Throttle Control Motor Relay Circuit Short in a 2012 Nissan Altima Sedan?

Repairing the Throttle Control Motor Relay Circuit Short in a 2012 Nissan Altima Sedan may involve replacing the faulty throttle control motor relay, repairing any damaged wiring, or cleaning/replacing the throttle body.

7. Is it necessary to reset the OBDII code P2103 in a 2012 Nissan Altima Sedan after making repairs?

Yes, it is recommended to reset the OBDII code P2103 in a 2012 Nissan Altima Sedan after making repairs to clear the fault code and see if the issue has been resolved.

8. How much does it cost to fix the Throttle Control Motor Relay Circuit Short in a 2012 Nissan Altima Sedan?

The cost to fix the Throttle Control Motor Relay Circuit Short in a 2012 Nissan Altima Sedan can vary depending on the exact cause of the issue, parts needed, and labor costs. It is advisable to consult a professional mechanic for an accurate estimate.

9. Can a DIY enthusiast fix the OBDII code P2103 issue in a 2012 Nissan Altima Sedan?

While some DIY enthusiasts may have the skills to diagnose and repair the Throttle Control Motor Relay Circuit Short in a 2012 Nissan Altima Sedan, it is recommended to seek professional help for accurate diagnosis and proper repair.

10. How often does the Throttle Control Motor Relay Circuit Short issue occur in a 2012 Nissan Altima Sedan?

The Throttle Control Motor Relay Circuit Short issue can occur sporadically in a 2012 Nissan Altima Sedan and is not a common problem, but it should be addressed promptly to avoid further complications.

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