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P2101 Diagnostic Trouble Code Discussion for September 2020

Control Module Throttle Actuator Position Performance

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Trouble Ticket Help Requests for DTC P2101
Help Request Posted
2011 Mercedes-Benz ML350 4Matic 3.5L Poor Idle Quality
P2101: Throttle Valve Actuator. ... engine light was on for secondary air pump.Hooked scanner to it and checked air pump and found it had a bad pump.This is where it gets crazy.The key was left on for several hours and by the time it was discovered it was quiting time so we turned it off...
September 30, 2020