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P0688 Diagnostic Trouble Code Discussion for June 2008

ASD Relay Sense Circuit Low

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Trouble Ticket Help Requests for DTC P0688
Help Request Posted
2002 Volkswagen Jetta GLS 1.8L Stall VIN: WVWSE61J42
P0688: main relay j271 open circuit. hello techs, this VW has us scratching our heads a little. customer stated that the car stalls when ambient temp is high, after stalling the EPC light is illuminated. we scanned for codes and found those 5. the j271 relay described in the code supplies power t...
June 13, 2008