Throttle Position Sensor: Service and Repair
Replacing Throttle Potentiometer (S54)
Interrogate fault memory of DME control unit.
Turn off ignition.
Unlock plug (1) and detach from throttle potentiometer (2).
Release screws (3).
Remove throttle potentiometer (2) from throttle assembly of cylinder 1.
NOTE:
Interrogate fault memory of DME control unit.
Check stored fault messages.
Rectify faults.
Then clear fault memory.