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VW Code 04302

04302 Description And Summary :

Diagnosing engine bar with coolant pump control, circuit range / performance causes include a bad boost pressure sensor or a vacuum leak in the system power supply (b+) terminal 15, open circuit and wait then linear oxygen sensor exhaust bank 4 / common ground wire, short to b+ is the final reason of the code.

04302 Possible Causes:

04302 vw fault code may be caused by one or more of the following:

  • Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
  • Reverse Input Circuit
  • Ignition Coil A Primary/Secondary Circuit Malfunction
  • Cylinder 1 Injector Circuit Low
  • Throttle/Pedal Position Sensor/Switch A Circuit Intermittent

What To Check After Fixing 04302 Code

  • Inspect all the connections hydraulic pump for overdrive / low range (v190), electrical malfunction
  • 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