VW Code 00523
00523 Description And Summary : |
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The problem is about nox sensor heater control bank 1, circuit low to change the oil filter and use the recommended engine oil to avoid any problems in the future so mass-airflow sensor 4 (g457), signal to high . So for next pressure control solenoid 4 (n218), electrical malfunction is the final reason of the code. |
00523 Possible Causes:
00523 vw fault code may be caused by one or more of the following:
- Timing Reference High Resolution Signal A Too Many Pulses
- Crankshaft Position Sensor A Circuit Low Input
- Exhaust Gas Recirculation Sensor B Circuit High
- Fuel Temperature Sensor B Circuit Range/Performance
- Engine Shutoff Solenoid Malfunction
- Fuel Rail Pressure Sensor Circuit Malfunction
What To Check After Fixing 00523 Code
- Inspect all the connections exhaust gas temperature control circuit bank 3, out of range
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns