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P2103 2009 Nissan Altima Sedan Code - Throttle Control Motor Relay Circuit Short

Quick Answer

The P2103 diagnostic trouble code (DTC) for a 2009 Nissan Altima Sedan indicates a problem with the Throttle Control Motor Relay Circuit Short. 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 2009 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 2009 Nissan Altima Sedan Description

The P2103 diagnostic trouble code (DTC) for a 2009 Nissan Altima Sedan indicates a problem with the Throttle Control Motor Relay Circuit Short. This code is specifically related to the electronic throttle control system in the vehicle. The throttle control motor relay is responsible for controlling the operation of the throttle control motor, which regulates the airflow into the engine. When this circuit experiences a short, it can lead to issues with the throttle control system, affecting the vehicle's performance.

OBDII Code P2103 2009 Nissan Altima Sedan - Throttle Control Motor Relay Circuit Short
P2103 2009 Nissan Altima Sedan Code - Throttle Control Motor Relay Circuit Short

Common Causes of P2103 2009 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. Corrosion or poor connections in the circuit
  5. Electrical issues in the throttle control system

Symptoms of P2103 2009 Nissan Altima Sedan

  1. Reduced engine power
  2. Hesitation or stalling when accelerating
  3. Rough idling
  4. Vehicle going into limp mode

How to Fix P2103 2009 Nissan Altima Sedan

  1. Diagnose the issue using a scan tool to confirm the P2103 code and identify the specific component causing the problem.
  2. Inspect the wiring and connections in the throttle control motor relay circuit for any damage or corrosion.
  3. Test the throttle control motor relay to determine if it is functioning properly.
  4. Check the throttle control motor for any signs of malfunction or failure.
  5. Replace any damaged components, such as wiring, the relay, or the throttle control motor, as needed to resolve the issue.

Cost to Fix P2103 2009 Nissan Altima Sedan

The typical repair costs for addressing a P2103 code on a 2009 Nissan Altima Sedan can vary depending on the specific cause of the issue and the cost of parts and labor. In general, the cost of replacing a throttle control motor relay or throttle control motor can range from $150 to $400, including parts and labor. Additional costs may apply if there are other underlying issues that need to be addressed. It's important to note that diagnosis time and labor rates at auto repair shops can vary, so it's recommended to check with local shops for a more accurate estimate.

What does this mean?

Tech Notes for P2103 2009 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 2009 Nissan Altima Sedan Code

1. What are the common symptoms of OBDII code P2103 in a 2009 Nissan Altima Sedan?

The common symptoms of OBDII code P2103 in a 2009 Nissan Altima Sedan include reduced engine power, illuminated Check Engine light, and difficulty starting the vehicle.

2. What does the OBDII code P2103 on a 2009 Nissan Altima Sedan indicate?

OBDII code P2103 in a 2009 Nissan Altima Sedan indicates a problem with the Throttle Control Motor Relay Circuit Short.

3. What are the possible causes of OBDII code P2103 in a 2009 Nissan Altima Sedan?

Possible causes of OBDII code P2103 in a 2009 Nissan Altima Sedan include a faulty throttle control motor relay, damaged wiring or connectors in the circuit, or a malfunctioning throttle body.

4. How can I diagnose the Throttle Control Motor Relay Circuit Short issue in my 2009 Nissan Altima Sedan?

Diagnosing the Throttle Control Motor Relay Circuit Short issue in a 2009 Nissan Altima Sedan involves checking the throttle control motor relay, inspecting the wiring and connectors for damage, and testing the throttle body for proper operation.

5. Can I drive my 2009 Nissan Altima Sedan with OBDII code P2103?

It is not recommended to drive your 2009 Nissan Altima Sedan with OBDII code P2103, as it can lead to further damage to the vehicle and potentially unsafe driving conditions.

6. How can I repair OBDII code P2103 in my 2009 Nissan Altima Sedan?

To repair OBDII code P2103 in a 2009 Nissan Altima Sedan, you may need to replace the faulty throttle control motor relay, repair any damaged wiring or connectors, or replace the throttle body if necessary.

7. Is it safe to continue driving my 2009 Nissan Altima Sedan if the Check Engine light is on due to code P2103?

It is not recommended to continue driving your 2009 Nissan Altima Sedan if the Check Engine light is on due to code P2103, as it can impact the vehicle's performance and safety.

8. How much does it typically cost to repair OBDII code P2103 in a 2009 Nissan Altima Sedan?

The cost to repair OBDII code P2103 in a 2009 Nissan Altima Sedan can vary depending on the extent of the issue and the specific repairs needed. It is advisable to consult with a mechanic for an accurate estimate.

9. Can OBDII code P2103 in a 2009 Nissan Altima Sedan cause other problems if left unrepaired?

If left unrepaired, OBDII code P2103 in a 2009 Nissan Altima Sedan can potentially cause further damage to the vehicle's engine and electrical system, leading to more serious issues over time.

10. How often does OBDII code P2103 occur in a 2009 Nissan Altima Sedan?

OBDII code P2103 in a 2009 Nissan Altima Sedan is relatively uncommon but can occur due to various factors such as wear and tear, electrical issues, or component failure.

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