Join Now
International Automotive Technicians Network

P1639 Diagnostic Trouble Code Discussion for July 2012

5-Volt Reference 'B' Circuit Malfunction


Note: This is a professional automotive technician's resource.
Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder.

Trouble Ticket Help Requests for DTC P1639
Help Request Posted
1999 Volkswagen Jetta GLX 2.8L Surge, Cuts out VIN: 3VWTE29M2X
P1639: t p.s range performance. customer compains of no power and stalls and runs rough. scan codes and diffenent codes appear every time. these codes seem to come back everytime..checked fuel pump relay circuit. seems o.k. but having a hard time reading schematics to find what voltage shoul...
July 06, 2012
1999 Volkswagen Jetta GLX 2.8L Surge, Cuts out VIN: 3VWTE29M2X
P1639: t p.s range performance. customer compains of no power and stalls and runs rough. scan codes and diffenent codes appear every time. these codes seem to come back everytime..checked fuel pump relay circuit. seems o.k. but having a hard time reading schematics to find what voltage shoul...
July 10, 2012
1999 Volkswagen Jetta GLX 2.8L Surge, Cuts out VIN: 3VWTE29M2X
P1639: t p.s range performance. customer compains of no power and stalls and runs rough. scan codes and diffenent codes appear every time. these codes seem to come back everytime..checked fuel pump relay circuit. seems o.k. but having a hard time reading schematics to find what voltage shoul...
July 06, 2012
1999 Volkswagen Jetta GLX 2.8L Surge, Cuts out VIN: 3VWTE29M2X
P1639: t p.s range performance. customer compains of no power and stalls and runs rough. scan codes and diffenent codes appear every time. these codes seem to come back everytime..checked fuel pump relay circuit. seems o.k. but having a hard time reading schematics to find what voltage shoul...
July 10, 2012