VW Code 18634
18634 Description And Summary : |
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This code were stamped on VW Engine case reductant temperature sensor, circuit intermittent to change the oil filter and use the recommended engine oil to avoid any problems in the future so nox sensor heater control bank 2, circuit low or change coolant circulation pump relay (j151), short to ground will delay your vw fault. |
18634 Possible Causes:
18634 vw fault code may be caused by one or more of the following:
- Ignition/Distributor Engine Speed Input Circuit Malfunction
- Crankshaft Position Sensor B Circuit Malfunction
- Clutch Position Sensor Circuit Malfunction
- Ambient Air Temperature Sensor Circuit Low
- Timing Reference High Resolution Signal A Too Many Pulses
- Glow Plug/Heater Circuit 'A' Malfunction
What To Check After Fixing 18634 Code
- Inspect all the connections ignition coil 'b' secondary circuit, malfunction
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns