AutoCodes – Nissan – P2101 2012 Nissan Altima Sedan

P2101 2012 Nissan Altima Sedan Code - Electric Throttle Control Performance

Quick Answer

The throttle actuator is operated by the Engine Control Module (ECM) and it opens and closes the throttle valve. Common causes include Faulty Electric Throttle Control (ETC) Actuator, Electric Throttle Control (ETC) Actuator harness is open or shorted, Electric Throttle Control (ETC) Actuator circuit poor electrical connection. 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: P2101 2012 Nissan Altima Sedan indicates Electric Throttle Control Performance.
Common causes: Common causes include Faulty Electric Throttle Control (ETC) Actuator, Electric Throttle Control (ETC) Actuator harness is open or shorted, Electric Throttle Control (ETC) Actuator circuit poor electrical connection.
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 3,999

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
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P2101 2012 Nissan Altima Sedan 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 P2101 2012 Nissan Altima Sedan - Electric Throttle Control Performance - AutoCodes.com — P2101 2012 Nissan Altima Sedan Code - Electric Throttle Control Performance

What does this mean?

What are the Possible Causes of the DTC P2101 2012 Nissan Altima Sedan?

Faulty Electric Throttle Control (ETC) Actuator
Electric Throttle Control (ETC) Actuator harness is open or shorted
Electric Throttle Control (ETC) Actuator circuit poor electrical connection

How to Fix the DTC P2101 2012 Nissan Altima Sedan?

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 P2101 2012 Nissan Altima Sedan 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.

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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 P2101 2012 Nissan Altima Sedan Code

1. What does OBDII code P2101 on a 2012 Nissan Altima Sedan indicate?

- OBDII code P2101 indicates an issue with the Electric Throttle Control Performance in the vehicle.

2. What are the common symptoms of OBDII code P2101 on a 2012 Nissan Altima Sedan?

- Common symptoms of P2101 may include reduced engine power, difficulty accelerating, and the vehicle going into limp mode.

3. What are the possible causes of OBDII code P2101 on a 2012 Nissan Altima Sedan?

- The common causes of P2101 include a faulty throttle actuator, throttle position sensor issues, wiring problems, or a malfunctioning electronic throttle control system.

4. How can I diagnose the Electric Throttle Control Performance issue causing OBDII code P2101 on my 2012 Nissan Altima Sedan?

- Diagnosing P2101 may involve checking the throttle body for dirt or carbon buildup, inspecting the throttle position sensor, and scanning for any related error codes.

5. Can I continue driving my 2012 Nissan Altima Sedan with OBDII code P2101 present?

- It is not recommended to drive the vehicle with P2101 as it can lead to further damage and potential safety hazards due to reduced engine performance.

6. How can I repair OBDII code P2101 on my 2012 Nissan Altima Sedan?

- Repairing P2101 may involve cleaning the throttle body, replacing the throttle actuator or throttle position sensor, checking and repairing any wiring issues, or resetting the electronic throttle control system.

7. Is it possible to reset OBDII code P2101 on a 2012 Nissan Altima Sedan without repairs?

- Resetting the code without addressing the underlying issue may temporarily clear the code, but it is likely to return if the Electric Throttle Control Performance problem persists.

8. How much does it typically cost to fix OBDII code P2101 on a 2012 Nissan Altima Sedan?

- The cost of fixing P2101 can vary depending on the specific cause of the issue, but it may range from a few hundred to over a thousand dollars for parts and labor.

9. Can a DIY enthusiast with basic automotive knowledge fix OBDII code P2101 on a 2012 Nissan Altima Sedan?

- Depending on the cause of P2101, some DIY enthusiasts may be able to address the issue themselves by following repair guides and using the necessary tools.

10. Are there any preventive measures to avoid OBDII code P2101 on a 2012 Nissan Altima Sedan in the future?

- Regular maintenance, such as cleaning the throttle body and inspecting the throttle control system components, can help prevent issues that may trigger OBDII code P2101.