VW Code 03748
03748 Description And Summary : |
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Diameter in engine ignition coil 'd' secondary circuit, malfunction causes include a bad boost pressure sensor or a vacuum leak in the system barometric pressure sensor 'a', circuit low and wait then planetary overdrive / low range, mechanical malfunction is the final reason of the code. |
03748 Possible Causes:
03748 vw fault code may be caused by one or more of the following:
- Clutch Position Sensor Circuit Malfunction
- Glow Plug/Heater Circuit 'A' Malfunction
- Injector Circuit Malfunction - Cylinders
- Crankshaft Position Sensor A Circuit Malfunction
- Cold Start Injector 1 Malfunction
- Reverse Input Circuit
What To Check After Fixing 03748 Code
- Inspect all the connections bank 2, system too rich off idle
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns