AutoCodes – Nissan – P2103 2012 Nissan Altima Sedan

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

Quick Answer

The throttle actuator is operated by the Engine Control Module (ECM) and it opens and closes the throttle valve. Common causes include Dirty throttle body, Faulty Throttle Actuator Control Motor Relay, Throttle Actuator Control Motor Relay harness is open. 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 Dirty throttle body, Faulty Throttle Actuator Control Motor Relay, Throttle Actuator Control Motor Relay harness is open.
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.

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Code Popularity 4,931

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Feb 28, 2019

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P2103 2012 Nissan Altima Sedan Description

The throttle actuator is operated by the Engine Control Module (ECM) and it opens and closes the throttle valve. Power supply for the throttle control motor is provided to the ECM via throttle control motor relay. The throttle control motor relay is ON/OFF controlled by the ECM. When the ignition switch is turned ON, the ECM sends an ON signal to throttle control motor relay and battery voltage is provided to the ECM. When the ignition switch is turned OFF, the ECM sends an OFF signal to throttle control motor relay and battery voltage is not provided to the ECM. The opening angle of the throttle valve is detected by the throttle position sensor which is mounted on the throttle body. The throttle position sensor provides feedback to the ECM. This feedback allows the ECM to control the throttle actuator and monitor the throttle opening angle in response to driver inputs.

OBDII Code P2103 2012 Nissan Altima Sedan - Throttle Control Motor Relay Circuit Short - AutoCodes.com — P2103 2012 Nissan Altima Sedan Code - Throttle Control Motor Relay Circuit Short

What does this mean?

What are the Possible Causes of the DTC P2103 2012 Nissan Altima Sedan?

Dirty throttle body
Faulty Throttle Actuator Control Motor Relay
Throttle Actuator Control Motor Relay harness is open
Throttle Actuator Control Motor Relay circuit poor electrical connection
Faulty Engine Control Module (ECM)

How to Fix the DTC P2103 2012 Nissan Altima Sedan?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What does this mean?

Code Tech Notes

Check Fuse #43 (see picture)

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P2103 2012 Nissan Altima Sedan code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P2103 2012 Nissan Altima Sedan code?

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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.