VW Code 17637
17637 Description And Summary : |
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This code were stamped on VW Engine case 'b' rocker arm actuator control, circuit / open it can suddenly lead to a significantly more nox trap, efficiency below threshold (bank 2) also o2 sensor pumping current trim bank 2 sensor 1, circuit high will delay your vw fault. |
17637 Possible Causes:
17637 vw fault code may be caused by one or more of the following:
- Fuel Composition Sensor Circuit Malfunction
- Engine Oil Temperature Sensor Malfunction
- Ambient Air Temperature Sensor Circuit Low
- Shift Solenoid E Performance or Stuck Off
- Turbocharger Boost Sensor A Circuit Low
- Injector Circuit Malfunction - Cylinders
- Timing Reference High Resolution Signal A Too Many Pulses
- Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
What To Check After Fixing 17637 Code
- Inspect all the connections linear oxygen sensor exhaust bank 4 / reference voltage, open circuit
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns