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P0120 Diagnostic Trouble Code Discussion for February 2006

Throttle Position Sensor Circuit Malfunction

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Trouble Ticket Help Requests for DTC P0120
Help Request Posted
2002 Mercedes-Benz S430 4.3L Hesitation VIN: WDBNG70J12
P0120: pedal sensor short at circuit path 1. Hey Mercedes techs, this Benz has a throttle actuator problem and hesitates badly after driving a while. Pedal sensor voltages look good when problem is occuring, but throttle actuator voltages do not. Sensor one at actuator should increase from about .5 volt ...
February 14, 2006