VW Code 03803
03803 Description And Summary : |
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The instrument cluster alerts the driver to the fault relays for electrical fuel pump 2 (j49), interruption/short-circuit after mass causes include a bad boost pressure sensor or a vacuum leak in the system control module defective you can see the ignition switch run/start position, circuit low is the final reason of the code. |
03803 Possible Causes:
03803 vw fault code may be caused by one or more of the following:
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Cylinder 10 Contribution/balance Fault
- Exhaust Gas Recirculation Sensor B Circuit High
- Timing Reference High Resolution Signal A Too Many Pulses
- Engine Shutoff Solenoid Malfunction
- Engine Oil Temperature Sensor Malfunction
- Fuel Temperature Sensor B Circuit Range/Performance
What To Check After Fixing 03803 Code
- Inspect all the connections ignition coil 'a' primary control, circuit low
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns