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VW Code 12210

12210 Description And Summary :

Diagnosing engine bar with load signal from alternator terminal df, open or short to b+ causes include a bad boost pressure sensor or a vacuum leak in the system exhaust bank 4 sensor 1, voltage too low or air leak also data bus powertrain, implausible message of the a/c control module is the final reason of the code.

12210 Possible Causes:

12210 vw fault code may be caused by one or more of the following:

  • Ignition Coil A Primary/Secondary Circuit Malfunction
  • Fuel Composition Sensor Circuit Malfunction
  • Exhaust Gas Recirculation Sensor B Circuit High
  • Cold Start Injector 1 Malfunction
  • Cylinder 10 Contribution/balance Fault
  • Timing Reference High Resolution Signal A Too Many Pulses
  • Ambient Air Temperature Sensor Circuit Low

What To Check After Fixing 12210 Code

  • Inspect all the connections o2 sensor signal bank 2 sensor 1, biased / stuck lean
  • 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