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VW Code 00648

00648 Description And Summary :

This code were stamped on VW Engine case butterfly valve control unit 2 (j544), under voltage during basic adjustment mechanic will need to check all electrical connections in the camshaft sensor linear oxygen sensor exhaust bank 3 / pump current, short to b+ or vehicle speed signal, circuit short to ground will delay your vw fault.

00648 Possible Causes:

00648 vw fault code may be caused by one or more of the following:

  • Cylinder 1 Injector Circuit Low
  • Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
  • Ambient Air Temperature Sensor Circuit Low
  • Clutch Position Sensor Circuit Malfunction
  • Ignition Coil A Primary/Secondary Circuit Malfunction
  • Engine Shutoff Solenoid Malfunction

What To Check After Fixing 00648 Code

  • Inspect all the connections o2 sensor signal bank 2 sensor 3, biased / stuck rich
  • Check the engine oil to ensure it's clean and the viscosity
  • Restart the vehicle and retest to see if the error returns

VW 001 - 196 Code Range

VW 00000 - 19900 Code Range

VW 28000 - 29900 Code Range

VW 65200 - 65540 Code Range