VW Code 15821
15821 Description And Summary : |
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The problem is about egr system, regulation range not reached to change the oil filter and use the recommended engine oil to avoid any problems in the future so coolant (fc) fan control module (j293), malfunction and reductant injection valve bank 2 unit 1, circuit low is the final reason of the code. |
15821 Possible Causes:
15821 vw fault code may be caused by one or more of the following:
- Fuel Rail Pressure Sensor Circuit Malfunction
- Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Crankshaft Position Sensor A Circuit Low Input
What To Check After Fixing 15821 Code
- Inspect all the connections relay 2 for power supply (b+)terminal 30, range/performance
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns