Code result
U043D
Invalid Data Received From Accelerator Pedal Module
High severity
What it means
A receiving module detected implausible data from the accelerator pedal module. Pedal position channels A and B disagree or fall outside calibration limits, and the engine reverts to a fail-safe pedal map.
Is it safe to drive?
No — stop driving
This code can put the vehicle into limp or reduced-power mode. Avoid extended driving and have the vehicle diagnosed promptly.
Most likely causes
Module internal fault or sensor input drift
highOne of the most commonly reported causes for this code — check this first.
Software version mismatch after replacement
mediumA plausible cause — test and verify before replacing parts.
Gateway module routing CAN messages incorrectly
lowLess common, but worth ruling out after the more likely causes.
Related help
Get the full diagnosis
Add your vehicle and see step-by-step repair help, recalls, and TSBs in Wrenchify.
Diagnose U043D freeNo credit card required