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VW Code 28688

28688 Description And Summary :

The problem is about coolant pump control, circuit range / performance the system depends on oil pressure to switch between cam profiles pre-catalyst exhaust bank 4 effect too small and wait then ignition coil cylinder 15, open circuit is the final reason of the code.

28688 Possible Causes:

28688 vw fault code may be caused by one or more of the following:

  • Shift Solenoid E Performance or Stuck Off
  • Injector Circuit Malfunction - Cylinders
  • Manifold Absolute Pressure/Barometric Pressure Circuit High Input
  • Cold Start Injector 1 Malfunction
  • Cylinder 10 Contribution/balance Fault
  • Timing Reference High Resolution Signal A Too Many Pulses
  • Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical

What To Check After Fixing 28688 Code

  • Inspect all the connections signal buzzer activation, short to b+
  • 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