CM870 and ISX Engines – FAULT CODE 432

Accelerator Pedal Idle Validation Circuit


Overview

CODE REASON EFFECT
Fault Code: 432
PID: S230
SPN: 558
FMI: 13/13
LAMP: Red
SRT: 

Accelerator Pedal Idle Validation Circuit – out of calibration. Voltage at idle validation on-idle and off-idle circuit does not match accelerator pedal position.

Engine will only idle.

Accelerator Pedal Idle Validation Circuit
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Circuit Description

The accelerator pedal position sensor is attached to the accelerator pedal. The accelerator pedal position sensor sends a signal to the electronic control module (ECM) when the accelerator pedal is depressed and released. The accelerator pedal position circuit contains three wires: accelerator pedal position supply, accelerator pedal position return, and accelerator pedal position signal. The switch return circuit for the on-idle and off-idle validation circuit is a shared return with other OEM switches.

Component Location

The accelerator pedal position sensor is located on the accelerator pedal.

Shop Talk

This fault is logged when both the on idle and off idle validation switches disagree with the accelerator pedal position signal. Turning the keyswitch ON while partially depressing the accelerator pedal can cause this fault code to go active. This fault will stay active until the pedal is cycled through its full travel.

Refer to Troubleshooting Fault Code t05-432

Last Modified:  01-Sep-2010