AutoCodes – Toyota – P2135 2004 Toyota Corolla

P2135 2004 Toyota Corolla Code - Throttle/Pedal Position Sensor/Switch 'A'/'B' Voltage Correlation 3ZZ-FE Engine

Quick Answer

Electric throttle control actuator consists of throttle control motor, throttle position sensor, etc. Common causes include Faulty electric throttle control actuator (TP sensor 1 and 2), Throttle Position Sensor harness is open or shorted, Throttle Position Sensor circuit poor 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
P2135 2004 Toyota Corolla indicates Throttle/Pedal Position Sensor/Switch 'A'/'B' Voltage Correlation 3ZZ-FE Engine.
Common causes
Common causes include Faulty electric throttle control actuator (TP sensor 1 and 2), Throttle Position Sensor harness is open or shorted, Throttle Position Sensor circuit poor 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 2,525
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jun 14, 2020
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Code P2135 2004 Toyota Corolla Description

Electric throttle control actuator consists of throttle control motor, throttle position sensor, etc. The throttle position sensor responds to the throttle valve movement.

The throttle position sensor has the two sensors. These sensors are a kind of potentiometers which transform the throttle valve position into output voltage, and emit the voltage signal to the Engine Control Module (ECM). In addition, these sensors detect the opening and closing speed of the throttle valve and feed the voltage signals to the ECM. The ECM judges the current opening angle of the throttle valve from these signals and the ECM controls the throttle control motor to make the throttle valve opening angle properly in response to driving condition.
OBDII Code P2135 2004 Toyota Corolla - Throttle/Pedal Position Sensor/Switch 'A'/'B' Voltage Correlation 3ZZ-FE Engine - AutoCodes.com
P2135 2004 Toyota Corolla Code - Throttle/Pedal Position Sensor/Switch 'A'/'B' Voltage Correlation 3ZZ-FE Engine

What are the Possible Causes of the DTC P2135 2004 Toyota Corolla?

  • Faulty electric throttle control actuator (TP sensor 1 and 2)
  • Throttle Position Sensor harness is open or shorted
  • Throttle Position Sensor circuit poor connection
  • Faulty accelerator pedal position sensor

How to Fix the DTC P2135 2004 Toyota Corolla?

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 P2135 2004 Toyota Corolla 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 P2135 2004 Toyota Corolla 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 P2135 2004 Toyota Corolla Code

1. What are the common symptoms of OBDII code P2135 in a 2004 Toyota Corolla with the 3ZZ-FE engine?

- Common symptoms include reduced engine power, hesitation or surging during acceleration, and the vehicle going into limp mode.

2. What are the possible causes of OBDII code P2135 in a 2004 Toyota Corolla?

- Possible causes include a faulty throttle position sensor, accelerator pedal position sensor, wiring issues, or a problem with the electronic throttle control system.

3. How can I diagnose the cause of OBDII code P2135 in my 2004 Toyota Corolla?

- Diagnosing the issue involves using a scan tool to read the code, checking the throttle and pedal position sensor voltages, inspecting wiring for damage, and testing the electronic throttle control system.

4. Can I continue to drive my 2004 Toyota Corolla with OBDII code P2135?

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

5. How can I repair OBDII code P2135 in my 2004 Toyota Corolla?

- Repair typically involves replacing the faulty throttle position sensor or accelerator pedal position sensor, repairing any damaged wiring, and clearing the code with a scan tool.

6. Will resetting the OBDII code P2135 in my 2004 Toyota Corolla make it go away permanently?

- Resetting the code may temporarily turn off the check engine light, but if the underlying issue is not fixed, the code is likely to return.

7. Are there any tips for preventing OBDII code P2135 in my 2004 Toyota Corolla?

- Regular maintenance, such as cleaning throttle components and inspecting wiring, can help prevent issues that may trigger this code.

8. Can a DIY enthusiast repair OBDII code P2135 in a 2004 Toyota Corolla?

- While some may be comfortable with basic repairs like sensor replacements, diagnosing and repairing this code often requires advanced knowledge and tools, so seeking professional help is recommended.

9. How long does it typically take to repair OBDII code P2135 in a 2004 Toyota Corolla?

- The repair time can vary depending on the exact cause of the code, but it may take a few hours to a full day to diagnose and fix the issue.

10. Is OBDII code P2135 a common issue in 2004 Toyota Corollas with the 3ZZ-FE engine?

- While not extremely common, this code can occur in vehicles due to sensor failures, wiring problems, or issues with the throttle control system.

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