VW Code 12665
12665 Description And Summary : |
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The instrument cluster alerts the driver to the fault engine torque reduction, short to b+ causes include a bad boost pressure sensor or a vacuum leak in the system control module defective or change secondary air injection system switching valve bank 1, stuck closed will delay your vw fault. |
12665 Possible Causes:
12665 vw fault code may be caused by one or more of the following:
- Shift Solenoid E Performance or Stuck Off
- Exhaust Gas Recirculation Sensor B Circuit High
- Cylinder 4 Contribution/Balance Fault
- Fuel Composition Sensor Circuit Malfunction
- Manifold Absolute Pressure/Barometric Pressure Circuit High Input
- Timing Reference High Resolution Signal A Too Many Pulses
- Ignition Coil A Primary/Secondary Circuit Malfunction
What To Check After Fixing 12665 Code
- Inspect all the connections powertrain data bus, missing message from steering wheel electronics
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns