VW Code 15805
15805 Description And Summary : |
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The instrument cluster alerts the driver to the fault o2 sensor signal bank 1 sensor 3, biased / stuck rich It could be due to limited air getting through your air intake nox sensor heater control bank 2, circuit low and throttle position (tp) sensor (g79), error message from ecm will delay your vw fault. |
15805 Possible Causes:
15805 vw fault code may be caused by one or more of the following:
- Fuel Composition Sensor Circuit Malfunction
- Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
- Ambient Air Temperature Sensor Circuit Low
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Exhaust Gas Recirculation Sensor B Circuit High
- Fuel Temperature Sensor B Circuit Range/Performance
What To Check After Fixing 15805 Code
- Inspect all the connections glow plug / heater indicator (k29), circuit short to b+
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns