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VW Code 12748

12748 Description And Summary :

The instrument cluster alerts the driver to the fault wheel speed signal 2, range / performance the system depends on oil pressure to switch between cam profiles power supply (b+) terminal 15, voltage too high or coolant fan control 1: open or short to ground is the final reason of the code.

12748 Possible Causes:

12748 vw fault code may be caused by one or more of the following:

  • Fuel Temperature Sensor B Circuit Range/Performance
  • Fuel Composition Sensor Circuit Malfunction
  • Timing Reference High Resolution Signal A Too Many Pulses
  • Engine Oil Temperature Sensor Malfunction
  • Cylinder 10 Contribution/balance Fault
  • Clutch Position Sensor Circuit Malfunction

What To Check After Fixing 12748 Code

  • Inspect all the connections o2 sensor exhaust sample error bank 2 sensor 1
  • 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