AutoCodesNissan – P2103 2007 Nissan Sentra

P2103 2007 Nissan Sentra 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 2007 Nissan Sentra 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 3,607
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Feb 28, 2019
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Code P2103 2007 Nissan Sentra 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 2007 Nissan Sentra - Throttle Control Motor Relay Circuit Short - AutoCodes.com
P2103 2007 Nissan Sentra Code - Throttle Control Motor Relay Circuit Short

What are the Possible Causes of the DTC P2103 2007 Nissan Sentra?

  • 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 2007 Nissan Sentra?

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 is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P2103 2007 Nissan Sentra 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 2007 Nissan Sentra 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 2007 Nissan Sentra Code

1. What does the OBDII code P2103 mean for a 2007 Nissan Sentra?

P2103 indicates a problem in the Throttle Control Motor Relay Circuit, specifically a short circuit.

2. What are the common symptoms of code P2103 in a 2007 Nissan Sentra?

Symptoms may include reduced engine performance, limited throttle response, the engine going into “limp mode,” or an illuminated check engine light.

3. What causes the P2103 code to appear in a 2007 Nissan Sentra?

Common causes include a shorted or damaged throttle control motor relay, faulty wiring or connectors, or a malfunctioning electronic throttle control (ETC) module.

4. Can a dirty throttle body trigger the P2103 code?

A dirty throttle body is unlikely to directly cause P2103, as the code specifically relates to a circuit short, not mechanical issues.

5. How do you diagnose the P2103 code on a 2007 Nissan Sentra?

Diagnosis involves checking the throttle control motor relay, inspecting wiring and connectors for damage or shorts, and testing the ETC module for proper function.

6. Is it safe to drive a 2007 Nissan Sentra with the P2103 code?

Driving with this code is not recommended, as the vehicle may enter limp mode, limiting throttle response and potentially creating safety concerns.

7. How can you fix the P2103 code in a 2007 Nissan Sentra?

Repairs might include replacing a faulty throttle control motor relay, repairing or replacing damaged wiring, or replacing the ETC module if necessary.

8. How much does it cost to repair the P2103 code on a 2007 Nissan Sentra?

Repair costs vary but can range from $50 for simple wiring repairs to $500 or more if the ETC module or throttle body needs replacement.

9. Can a weak battery cause the P2103 code in a 2007 Nissan Sentra?

While unlikely, electrical issues like a weak battery can sometimes exacerbate circuit problems, so it’s worth checking the battery’s health.

10. Will clearing the P2103 code fix the problem in a 2007 Nissan Sentra?

Clearing the code without addressing the underlying issue will not fix the problem, and the code will likely reappear.

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