Audi
Throttle motor circuit shorted to ground. Petrol goes into limp mode; on TDI the intake throttle flap can stop the engine starting.
P2102 fault code: what it means
P2102: Throttle motor circuit shorted to ground. Petrol goes into limp mode; on TDI the intake throttle flap can stop the engine starting.
Usual causes, most likely first
- chafed wiring near the throttle body
- water in the throttle connector
- blown throttle fuse
- failed throttle motor (common on 2.0 TDI, soot-worn gears)
P2102 by make
Skoda
Throttle motor circuit shorted to ground. Petrol goes into limp mode; on TDI the intake throttle flap can stop the engine starting.
Volkswagen
Throttle motor circuit shorted to ground. Petrol goes into limp mode; on TDI the intake throttle flap can stop the engine starting.
What the repair usually costs
- Automatic transmission rebuild, 6-speed and up (sent to specialist)NZ$7,190–NZ$13,080 · A$6,190–A$11,830
- DSG / dual-clutch mechatronic unit replacement (new or reman)NZ$4,300–NZ$7,160 · A$3,750–A$6,390
- DSG mechatronic repair / rebuild (unit sent to specialist)NZ$2,070–NZ$4,800 · A$1,890–A$4,250
- Throttle body clean and idle relearnNZ$90–NZ$190 · A$100–A$200
Not sure what P2102 means on your car? Ask Credov.
Before you clear it
Write the code down or photograph the scanner first. A code that comes straight back after clearing points to a fault that is still there. A car whose codes were cleared just before you arrived may be hiding one: the scanner's readiness monitors show "not ready" for a while after codes are cleared.
Researched by Credov from manufacturer and workshop sources. A fault code points to where a fault may be; a workshop confirms it with a diagnosis. Browse all fault codes.