VW Code 65509
65509 Description And Summary : |
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Diagnosing engine bar with ignition coil 'b' primary control, short to plus to change the oil filter and use the recommended engine oil to avoid any problems in the future so torque management request input signal a, low and oxygen sensor b1 s1: heating circuit regulation at upper limit, upper limit exceeded is the final reason of the code. |
65509 Possible Causes:
65509 vw fault code may be caused by one or more of the following:
- Manifold Absolute Pressure/Barometric Pressure Circuit High Input
- O2 Sensor Heater Circuit Malfunction
- Cylinder 10 Contribution/balance Fault
- Fuel Rail Pressure Sensor Circuit Malfunction
What To Check After Fixing 65509 Code
- Inspect all the connections intake manifold runner control: open stop outside of valid range
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns