AutoCodes – Nissan – P2100 2012 Nissan Sentra

P2100 2012 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 2012 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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 3,368

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
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code P2100 2012 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 2012 Nissan Sentra - Throttle Control Motor Relay Circuit Open - AutoCodes.com — P2100 2012 Nissan Sentra Code - Throttle Control Motor Relay Circuit Open

What does this mean?

What are the Possible Causes of the DTC P2100 2012 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 2012 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 2012 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 2012 Nissan Sentra code?

Need more information on how to fix the P2100 2012 Nissan Sentra code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P2100 2012 Nissan Sentra code diagnosed by a professional: Find a repair shop in your area

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 2012 Nissan Sentra Code

1. What are common symptoms of OBDII code P2100 in a 2012 Nissan Sentra?

- Common symptoms include reduced engine power, the vehicle going into limp mode, and the Check Engine Light illuminating.

2. What does the OBDII code P2100 mean in a 2012 Nissan Sentra?

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

3. What are possible causes of OBDII code P2100 in a 2012 Nissan Sentra?

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

4. How can I diagnose the Throttle Control Motor Relay Circuit Open issue in my 2012 Nissan Sentra?

- Diagnosing the issue involves checking the throttle control motor relay, inspecting the wiring and connectors for damage, and testing the throttle actuator control module for proper functionality.

5. Can I continue driving my 2012 Nissan Sentra with OBDII code P2100?

- It is not recommended to continue driving with OBDII code P2100, as it can lead to reduced vehicle performance and potential safety issues. It is best to address the problem promptly.

6. How can I repair OBDII code P2100 in my 2012 Nissan Sentra?

- Repairing the issue may involve replacing the faulty throttle control motor relay, repairing damaged wiring or connectors, or replacing the throttle actuator control module as needed.

7. Are there any DIY tips for addressing OBDII code P2100 in a 2012 Nissan Sentra?

- DIY tips include carefully inspecting the wiring and connectors for visible damage, ensuring proper connection of the throttle control motor relay, and using a multimeter to test circuit continuity.

8. Can weather conditions affect the occurrence of OBDII code P2100 in a 2012 Nissan Sentra?

- Extreme weather conditions, such as excessive heat or moisture, can potentially impact the electrical components involved in the throttle control system and contribute to the occurrence of P2100.

9. Will resetting the Check Engine Light resolve OBDII code P2100 in a 2012 Nissan Sentra?

- Simply resetting the Check Engine Light will not resolve the underlying issue causing OBDII code P2100. Proper diagnosis and repair are necessary to address the problem effectively.

10. Is it necessary to visit a mechanic for OBDII code P2100 in a 2012 Nissan Sentra?

- While some DIY troubleshooting may be possible, seeking professional help from a qualified mechanic is recommended for accurate diagnosis and proper repair of OBDII code P2100 in a 2012 Nissan Sentra.