AutoCodes – Nissan – P2100 Nissan

P2100 Nissan 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 Nissan 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 43,663

How popular is this code, among other codes? Medium

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 Nov 08, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P2100 Nissan 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 Nissan - Throttle Control Motor Relay Circuit Open - AutoCodes.com — P2100 Nissan Code - Throttle Control Motor Relay Circuit Open

What does this mean?

What are the Possible Causes of the DTC P2100 Nissan?

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 Nissan?

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 Nissan 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 Nissan code?

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

Need Help with the Code?

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

Information for Specific Nissan Models

P2100 2006 Nissan Altima Sedan — Throttle Control Motor Relay Circuit Open
P2100 2008 Nissan Altima Sedan — Throttle Control Motor Relay Circuit Open
P2100 2009 Nissan Altima Sedan — Throttle Control Motor Relay Circuit Open
P2100 2010 Nissan Altima Sedan — Throttle Control Motor Relay Circuit Open
P2100 2011 Nissan Altima Sedan — Throttle Control Motor Relay Circuit Open
P2100 2012 Nissan Altima Sedan — Throttle Control Motor Relay Circuit Open
P2100 2005 Nissan Pathfinder — Throttle Control Motor Relay Circuit Open
P2100 2006 Nissan Pathfinder — Throttle Control Motor Relay Circuit Open
P2100 2007 Nissan Pathfinder — Throttle Control Motor Relay Circuit Open
P2100 2008 Nissan Pathfinder — Throttle Control Motor Relay Circuit Open
P2100 2009 Nissan Pathfinder — Throttle Control Motor Relay Circuit Open
P2100 2010 Nissan Pathfinder — Throttle Control Motor Relay Circuit Open
P2100 2011 Nissan Pathfinder — Throttle Control Motor Relay Circuit Open
P2100 2012 Nissan Pathfinder — Throttle Control Motor Relay Circuit Open
P2100 2008 Nissan Rogue — Throttle Control Motor Relay Circuit Open
P2100 2009 Nissan Rogue — Throttle Control Motor Relay Circuit Open
P2100 2010 Nissan Rogue — Throttle Control Motor Relay Circuit Open
P2100 2011 Nissan Rogue — Throttle Control Motor Relay Circuit Open
P2100 2012 Nissan Rogue — Throttle Control Motor Relay Circuit Open
P2100 2013 Nissan Rogue — Throttle Control Motor Relay Circuit Open
P2100 2007 Nissan Sentra — Throttle Control Motor Relay Circuit Open
P2100 2008 Nissan Sentra — Throttle Control Motor Relay Circuit Open
P2100 2009 Nissan Sentra — Throttle Control Motor Relay Circuit Open
P2100 2010 Nissan Sentra — Throttle Control Motor Relay Circuit Open
P2100 2011 Nissan Sentra — Throttle Control Motor Relay Circuit Open
P2100 2012 Nissan Sentra — Throttle Control Motor Relay Circuit Open

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 Nissan Code

1. What are the common symptoms of OBDII code P2100 in a Nissan related to the Throttle Control Motor Relay Circuit Open?

- The common symptoms include reduced engine power, stalling, difficulty accelerating, and the vehicle going into limp mode.

2. What can cause the Throttle Control Motor Relay Circuit Open code P2100 in a Nissan?

- Possible causes can include a faulty throttle control motor relay, wiring issues, a defective throttle control motor, or a problem with the engine control module (ECM).

3. How can I diagnose the Throttle Control Motor Relay Circuit Open code P2100 in my Nissan?

- Diagnosis typically involves checking the throttle control motor relay, inspecting the wiring for any damage, testing the throttle control motor, and scanning the ECM for related trouble codes.

4. Can I drive my Nissan with the P2100 OBDII code present?

- It is not recommended to drive the vehicle with the P2100 code as it can lead to unsafe driving conditions and potential damage to the engine or other components.

5. What are some repair tips for fixing the Throttle Control Motor Relay Circuit Open code P2100 in a Nissan?

- Repair tips may include replacing the faulty throttle control motor relay, repairing any damaged wiring, testing and potentially replacing the throttle control motor, and resetting the ECM.

6. How much does it typically cost to repair the P2100 code in a Nissan?

- The cost of repair can vary depending on the exact cause of the issue, but it may range from a few hundred to over a thousand dollars, including parts and labor.

7. Can I reset the OBDII code P2100 in my Nissan without fixing the underlying issue?

- While you can clear the code with an OBDII scanner, it is crucial to address the root cause of the problem to prevent it from recurring and potentially causing more significant issues.

8. Is the Throttle Control Motor Relay Circuit Open code P2100 a common issue in Nissan vehicles?

- While it may not be as common as some other OBDII codes, P2100 can still occur in Nissan vehicles, especially in models with electronic throttle control systems.

9. Are there any preventive measures to avoid encountering the P2100 code in my Nissan?

- Regularly maintaining your vehicle, keeping up with recommended service schedules, and addressing any engine-related issues promptly can help reduce the likelihood of encountering the P2100 code.

10. How long does it typically take to repair the Throttle Control Motor Relay Circuit Open code P2100 in a Nissan?

- The repair time can vary based on the specific cause of the issue and the availability of parts, but it may take a few hours to a full day for a qualified mechanic to diagnose and fix the problem.