AutoCodes – Nissan – P2100 2008 Nissan Pathfinder

P2100 2008 Nissan Pathfinder 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 2008 Nissan Pathfinder 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 3,412

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 2008 Nissan Pathfinder 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 2008 Nissan Pathfinder - Throttle Control Motor Relay Circuit Open - AutoCodes.com — P2100 2008 Nissan Pathfinder Code - Throttle Control Motor Relay Circuit Open

What does this mean?

What are the Possible Causes of the DTC P2100 2008 Nissan Pathfinder?

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 2008 Nissan Pathfinder?

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 2008 Nissan Pathfinder 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 2008 Nissan Pathfinder 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 P2100 2008 Nissan Pathfinder Code

1. What are the common symptoms of OBDII code P2100 in a 2008 Nissan Pathfinder?

- Common symptoms include the Check Engine Light coming on, reduced engine power, difficulty accelerating, and potential stalling of the vehicle.

2. What does the OBDII code P2100 indicate in a 2008 Nissan Pathfinder?

- This code indicates a problem with the throttle control motor relay circuit being open, which can lead to issues with the vehicle's electronic throttle control system.

3. What are the possible causes of OBDII code P2100 in a 2008 Nissan Pathfinder?

- Possible causes include a malfunctioning throttle control motor relay, a damaged wiring harness, loose electrical connections, or a faulty electronic throttle control unit.

4. How can I diagnose the issue causing OBDII code P2100 in my 2008 Nissan Pathfinder?

- Diagnosing the problem may require a thorough inspection of the throttle control motor relay, wiring connections, and electronic throttle control unit using a multimeter and other diagnostic tools.

5. Can I continue driving my 2008 Nissan Pathfinder with OBDII code P2100?

- It is not recommended to continue driving the vehicle with this code present, as it can lead to unsafe driving conditions and potential further damage to the throttle control system.

6. How can I repair OBDII code P2100 in my 2008 Nissan Pathfinder?

- Repairing the issue may involve replacing the faulty throttle control motor relay, repairing or replacing damaged wiring, ensuring all electrical connections are secure, or replacing the electronic throttle control unit if necessary.

7. Is it possible to reset OBDII code P2100 in a 2008 Nissan Pathfinder without repairs?

- While clearing the code may temporarily turn off the Check Engine Light, it is crucial to address the underlying issue causing the code to prevent further problems with the throttle control system.

8. Are there any preventive maintenance tips to avoid OBDII code P2100 in a 2008 Nissan Pathfinder?

- Regularly inspecting and maintaining the throttle control system components, such as the relay, wiring, and connections, can help prevent issues that may trigger this code.

9. How much does it typically cost to repair OBDII code P2100 in a 2008 Nissan Pathfinder?

- The cost of repair can vary depending on the specific cause of the code and the necessary parts and labor involved. It is recommended to consult with a mechanic for an accurate estimate.

10. Can a DIY enthusiast with automotive knowledge fix OBDII code P2100 in a 2008 Nissan Pathfinder?

- Depending on the individual's skill level and access to tools, some DIY enthusiasts may be able to diagnose and repair the issue causing this code. However, it is essential to proceed with caution and follow proper procedures to avoid further damage.