Engine-Codes.com
Engine-Codes – Toyota – P2123 2008 Toyota Camry

P2123 2008 Toyota Camry Code - Throttle Pedal Position Sensor/Switch 'D' Circuit Input High

Quick Answer

The P2123 diagnostic trouble code (DTC) for a 2008 Toyota Camry indicates a problem with the Throttle Pedal Position Sensor/Switch 'D' Circuit Input High. Common causes include Faulty throttle pedal position sensor, Wiring issues or shorts in the sensor circuit, Corrosion or poor connections in the sensor wiring. 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
P2123 2008 Toyota Camry indicates Throttle Pedal Position Sensor/Switch 'D' Circuit Input High.
Common causes
Common causes include Faulty throttle pedal position sensor, Wiring issues or shorts in the sensor circuit, Corrosion or poor connections in the sensor wiring.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 14, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code P2123 2008 Toyota Camry Description

The P2123 diagnostic trouble code (DTC) for a 2008 Toyota Camry indicates a problem with the Throttle Pedal Position Sensor/Switch 'D' Circuit Input High. This means that the Engine Control Module (ECM) has detected a higher than normal voltage signal from the throttle pedal position sensor or switch 'D'. The throttle pedal position sensor is a crucial component that communicates the position of the accelerator pedal to the ECM, allowing it to adjust the throttle opening accordingly. When the sensor or switch 'D' sends a high voltage signal, it can cause issues with the vehicle's performance and drivability.

OBDII Code P2123 2008 Toyota Camry - Throttle Pedal Position Sensor/Switch 'D' Circuit Input High
P2123 2008 Toyota Camry Code - Throttle Pedal Position Sensor/Switch 'D' Circuit Input High

Common Causes of P2123 2008 Toyota Camry

  1. Faulty throttle pedal position sensor
  2. Wiring issues or shorts in the sensor circuit
  3. Corrosion or poor connections in the sensor wiring
  4. ECM malfunction or software issues
  5. Environmental factors such as moisture or debris affecting sensor operation

Symptoms of P2123 2008 Toyota Camry

  1. Reduced engine power
  2. Engine stalling or hesitation
  3. Poor acceleration
  4. Check Engine Light illuminated
  5. Difficulty maintaining speed

How to Fix P2123 2008 Toyota Camry

  1. Begin by diagnosing the issue using a scan tool to confirm the P2123 code and identify the specific cause.
  2. Inspect the throttle pedal position sensor and its wiring for any visible damage, corrosion, or loose connections.
  3. Test the sensor's voltage output using a multimeter to determine if it is within the manufacturer's specified range.
  4. If the sensor is faulty, replace it with a new one following the manufacturer's guidelines.
  5. Clear the DTC and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P2123 2008 Toyota Camry

The typical repair costs for addressing a P2123 code on a 2008 Toyota Camry can range from $150 to $300, including parts and labor. However, it's important to note that specific diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. Auto repair shops commonly charge between $80 and $150 per hour for labor, but rates may be higher in metropolitan areas or at dealerships, while independent shops may charge less. It's recommended to check local rates for a more accurate estimate.

What does this mean?

Tech Notes for P2123 2008 Toyota Camry

2007-2010 Toyota Camry apply for the recall for a bad Accelerator Pedal Position (APP) Sensor. You can call Toyota and check to see if your vehicle applies for the recall.

Need more information about the P2123 2008 Toyota Camry code?

Need more information on how to fix the P2123 2008 Toyota Camry code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P2123 2008 Toyota Camry code diagnosed by a professional: Find a repair shop in your area

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 P2123 2008 Toyota Camry Code

1. What does the OBDII code P2123 mean on a 2008 Toyota Camry?

The P2123 code indicates a "Throttle Pedal Position Sensor/Switch 'D' Circuit Input High," meaning the throttle pedal position sensor is sending an abnormally high voltage signal to the engine control module (ECM).

2. What are the common symptoms of a P2123 code?

Symptoms include reduced engine power, hesitation or surging during acceleration, an illuminated check engine light, or the vehicle entering "limp mode."

3. What causes the P2123 code to appear?

Common causes include a faulty throttle pedal position sensor, damaged or corroded wiring, loose electrical connections, or a malfunctioning ECM.

4. Can I drive my 2008 Toyota Camry with a P2123 code?

It's not recommended to drive with this code as it can lead to unsafe driving conditions, such as reduced power or erratic throttle response.

5. How do I fix the P2123 code on my vehicle?

Repairs may involve replacing the throttle pedal position sensor, repairing or replacing damaged wiring, cleaning corroded connectors, or reprogramming or replacing the ECM if necessary.

6. How can I diagnose the P2123 code on my 2008 Toyota Camry?

Start by scanning for the code with an OBDII scanner, inspecting the throttle pedal position sensor and its wiring for damage, and testing the sensor's voltage output with a multimeter.

7. What tools do I need to fix the P2123 code?

You may need an OBDII scanner, a digital multimeter, basic hand tools, and possibly wire repair kits or replacement parts like a new throttle pedal position sensor.

8. How much does it cost to repair a P2123 code?

Repair costs can vary but typically range from $100 to $300, depending on whether the issue is a simple wiring fix or requires replacing the throttle pedal position sensor.

9. Can a dirty throttle body cause the P2123 code?

A dirty throttle body is unlikely to cause this code directly, but it may contribute to throttle-related issues. Cleaning the throttle body could help if paired with other repairs.

10. Is the P2123 code specific to Toyota vehicles?

No, the P2123 code is a generic OBDII code that applies to many vehicles, but the exact causes and repairs can vary depending on the make and model.

Discuss the causes and fixes for P2123 2008 Toyota Camry OBDII Code

Submit a New Comment

Code P2123 2008 Toyota Camry comments

No comments found for this page.