Engine-Codes - Honda - P2128 2009 HONDA ACCORD

P2128 2009 HONDA ACCORD - Accelerator Pedal Position Sensor 'B' Throttle Position Sensor 'D' Circuit High Voltage

Repair Importance Level: 3/3
Repair Difficulty Level: 2/3  What is this?
Table of contents

P2128 2009 HONDA ACCORD Possible Causes

  • Faulty Accelerator Pedal Position
  • Accelerator Pedal Position harness is open or shorted
  • Accelerator Pedal Position circuit poor electrical connection
  • Faulty Powertrain Control Module (PCM)

How is the P2128 2009 HONDA ACCORD code repair?

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.

Tech Notes

ECM may have to be updated.

What is the cost to diagnose the P2128 2009 HONDA ACCORD code

Labor: 1.0

The cost to diagnose the P2128 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.
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Possible Symptoms

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

P2128 2009 HONDA ACCORD Meaning

Accelerator Pedal Position (APP) sensor B 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).

More Information

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