Engine-Codes - Honda - P2123 2009 HONDA ACCORD

P2123 2009 HONDA ACCORD Code - Accelerator Pedal Position Sensor 'A' Throttle Position Sensor 'D' Circuit High Voltage

- Code Popularity: 5,163 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 2/3
Table of contents

|What are the Possible Causes of the P2123 2009 HONDA ACCORD Code?

  • Faulty Accelerator Pedal Position
  • Accelerator Pedal Position harness is open or shorted
  • Accelerator Pedal Position circuit poor electrical connection
  • ECM

|How to Fix the P2123 2009 HONDA ACCORD Code?

Start by checking the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.

|P2123 2009 HONDA ACCORD code tech notes

ECM may need to updated

|What is the cost to diagnose the P2123 2009 HONDA ACCORD code?

Labor: 1.0

The cost to diagnose the P2123 2009 HONDA ACCORD code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.

|What are P2123 2009 HONDA ACCORD code possible symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

|What Does the P2123 2009 HONDA ACCORD Code Mean?

Accelerator Pedal Position (APP) sensor A is a part of the Electronic Throttle Control System (ETCS), and it is used to convert the position of the accelerator pedal into electrical signals. Based on these signals, the Powertrain Control Module (PCM) controls the throttle actuator so that the throttle position agrees with the accelerator pedal position. If the signal voltage from APP sensor A is a set value or less, the PCM detects a malfunction and stores a Diagnostic Trouble Code (DTC).

Accelerator Pedal Position Sensor 'A' Throttle Position Sensor 'D' Circuit High Voltage

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