What does code U043D mean?

Q: What does code U043D mean?

Invalid Data Received From Accelerator Pedal Module. U043D is a communication fault where one control module receives data from the accelerator pedal module that it considers invalid, meaning the message arrives but the values or checksum fail plausibility checks. The computer has detected that the pedal position signal is corrupted, out of range, or inconsistent with other throttle inputs, so it cannot trust the driver's demand for engine torque.

DTC codes / U04xx · Invalid data received from a module / U043D

U043DInvalid Data Received From Accelerator Pedal Module

U043D is a communication fault where one control module receives data from the accelerator pedal module that it considers invalid, meaning the message arrives but the values or checksum fail plausibility checks. The computer has detected that the pedal position signal is corrupted, out of range, or inconsistent with other throttle inputs, so it cannot trust the driver's demand for engine torque.

SystemNetwork

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyIntermediate

AreaInvalid data received from a module

Guidance is general and written for all OBD-II vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.