AutoCodes – Nissan – P2100 2010 Nissan Sentra

P2100 2010 Nissan Sentra Code - Throttle Control Motor Relay Circuit Open

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: P2100 2010 Nissan Sentra indicates Throttle Control Motor Relay Circuit Open.
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 3,551

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
Cost to Diagnose
FAQs
Comments
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Code P2100 2010 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 P2100 2010 Nissan Sentra - Throttle Control Motor Relay Circuit Open - AutoCodes.com — P2100 2010 Nissan Sentra Code - Throttle Control Motor Relay Circuit Open

What does this mean?

What are the Possible Causes of the DTC P2100 2010 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 P2100 2010 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 P2100 2010 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 P2100 2010 Nissan Sentra code?

Need more information on how to fix the P2100 2010 Nissan Sentra code? Get Access to Factory Service Manuals

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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 P2100 2010 Nissan Sentra Code

1. What are common symptoms of OBDII code P2100 in a 2010 Nissan Sentra?

- Common symptoms include the vehicle going into limp mode, reduced engine power, and illuminated check engine light.

2. What does the OBDII code P2100 indicate in a 2010 Nissan Sentra?

- The code P2100 indicates a Throttle Control Motor Relay Circuit Open issue in the throttle actuator control system.

3. What are the possible causes of the Throttle Control Motor Relay Circuit Open in a 2010 Nissan Sentra?

- Possible causes include a faulty throttle control motor relay, damaged wiring or connectors in the circuit, or a malfunctioning throttle control motor.

4. How can I diagnose the Throttle Control Motor Relay Circuit Open in my 2010 Nissan Sentra?

- Diagnosis involves checking the throttle control motor relay, inspecting the circuit for any open or damaged wiring, and testing the throttle control motor for proper functionality.

5. Can I still drive my 2010 Nissan Sentra with the OBDII code P2100?

- It is not recommended to drive the vehicle with the code P2100 as it may result in reduced engine power and potential safety hazards.

6. How can I repair the Throttle Control Motor Relay Circuit Open issue in my 2010 Nissan Sentra?

- Repair involves replacing the faulty throttle control motor relay, repairing any damaged wiring or connectors, and ensuring proper connections in the circuit.

7. Is it possible to clear the OBDII code P2100 in a 2010 Nissan Sentra without fixing the issue?

- Clearing the code without fixing the underlying problem may temporarily turn off the check engine light, but the issue will likely reoccur.

8. Can a DIY enthusiast fix the Throttle Control Motor Relay Circuit Open problem in a 2010 Nissan Sentra?

- While some DIY enthusiasts may be able to diagnose and replace the faulty components, it is recommended to seek professional help for accurate diagnosis and repair.

9. How much does it cost to repair the Throttle Control Motor Relay Circuit Open in a 2010 Nissan Sentra?

- The cost of repair can vary depending on the extent of the issue, but it may involve parts and labor expenses ranging from $100 to $300 or more.

10. Will fixing the Throttle Control Motor Relay Circuit Open improve the performance of my 2010 Nissan Sentra?

- Yes, resolving the Throttle Control Motor Relay Circuit Open issue should restore proper throttle control and engine performance in your Nissan Sentra.