AutoCodes – Nissan – P2101 2011 Nissan Altima Sedan

P2101 2011 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 2011 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 3,556

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 2011 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 2011 Nissan Altima Sedan - Electric Throttle Control Performance - AutoCodes.com — P2101 2011 Nissan Altima Sedan Code - Electric Throttle Control Performance

What does this mean?

What are the Possible Causes of the DTC P2101 2011 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 2011 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 2011 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 2011 Nissan Altima Sedan Code

1. What are the common symptoms of OBDII code P2101 in a 2011 Nissan Altima Sedan?

- Common symptoms include reduced engine power, idle surges, stalling, and the vehicle going into limp mode.

2. What causes the OBDII code P2101 to trigger in a 2011 Nissan Altima Sedan?

- The code is typically triggered by issues with the electric throttle control system, such as a faulty throttle body, wiring issues, or a malfunctioning throttle position sensor.

3. How can I diagnose the cause of OBDII code P2101 in my 2011 Nissan Altima Sedan?

- Diagnosing the issue involves checking the throttle body for dirt or debris, inspecting the wiring for any damage, and testing the throttle position sensor for proper function.

4. Can a dirty throttle body cause OBDII code P2101 in a 2011 Nissan Altima Sedan?

- Yes, a dirty throttle body can restrict airflow and cause issues with the electric throttle control system, leading to the triggering of code P2101.

5. Is it safe to continue driving my 2011 Nissan Altima Sedan with OBDII code P2101 present?

- It is not recommended to drive the vehicle with code P2101 present, as it can lead to unsafe driving conditions and potential engine damage.

6. How can I reset OBDII code P2101 in my 2011 Nissan Altima Sedan?

- The code can be reset using an OBDII scanner or by disconnecting the vehicle's battery for a few minutes to clear the stored error code.

7. What are some repair tips for fixing OBDII code P2101 in a 2011 Nissan Altima Sedan?

- Repair tips include cleaning the throttle body, checking and repairing any damaged wiring, replacing the throttle position sensor if needed, and ensuring proper throttle response.

8. Can a malfunctioning throttle position sensor cause OBDII code P2101 in a 2011 Nissan Altima Sedan?

- Yes, a malfunctioning throttle position sensor can cause erratic throttle responses and trigger code P2101 in the vehicle's system.

9. How much does it typically cost to repair OBDII code P2101 in a 2011 Nissan Altima Sedan?

- The cost of repair can vary depending on the exact cause of the issue, but it may range from $200 to $500 or more, including parts and labor.

10. Are there any recalls or technical service bulletins related to OBDII code P2101 in a 2011 Nissan Altima Sedan?

- It's recommended to check with Nissan or authorized service centers for any recalls or technical service bulletins related to code P2101 in the specific model year and make of your vehicle.