C0256
Symptom: ESP OFF lamp on.
No ESP function.
Accelerator Position. No Data, Bus from ECM.
Fault symptoms
ESP OFF lamp on.
No ESP function.
Conditions
ESP receives bus information from the ECM about the current gear position. If the ECM sends a message specifying that this information is faulty, a DTC is generated.
Diagnostic help
This DTC indicates a fault in the ECM. Refer to fault diagnosis for the engine control module in question.