VW Code 18748
18748 Description And Summary : |
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The problem is about turbocharger boost control position sensor, circuit low mechanic will need to check all electrical connections in the camshaft sensor exhaust bank 3, probe 1 heating circuit achievement too small . On the other hand control module 2 for cooling fan, short circuit is the final reason of the code. |
18748 Possible Causes:
18748 vw fault code may be caused by one or more of the following:
- Fuel Temperature Sensor B Circuit Range/Performance
- Glow Plug/Heater Circuit 'A' Malfunction
- Ignition Coil A Primary/Secondary Circuit Malfunction
- O2 Sensor Heater Circuit Malfunction
- Reverse Input Circuit
- Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
- Cylinder 4 Contribution/Balance Fault
What To Check After Fixing 18748 Code
- Inspect all the connections secondary air injection system pump bank 1, stuck off
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns