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P1639 Diagnostic Trouble Code Discussion for October 2010

5-Volt Reference 'B' Circuit Malfunction

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Trouble Ticket Help Requests for DTC P1639
Help Request Posted
2000 Volkswagen Jetta GL 2.0L Hesitation, Stall VIN: 3VWTE29M2Y
P1639: Acceleration position sensor implausible signal. Ran all the test we could , the throttle body and the accerlator pedal do not seem to be able to commumate . use a different throttle body to test ,checked fuses any wiring connecting the pedal and throttle body , Ran the addaption , Still same problem . Any i...
October 10, 2010