ABS With ESP and TCS

C1928
Engine Torque. No Data, Bus from ECM

Diagram:

Fault Symptoms
ESP OFF lamp on
No TCS, ESP function

Conditions
Engine running
Incorrect information on the bus from the ECM regarding throttle position
No information or incorrect information from the ECM. Read DTCs in the ECM

Diagnostic Help
Further trouble codes may be present in the ECM. See ECM fault diagnosis.