VW Code 05521

05521 Description And Summary :
This code were stamped on VW Engine case control module 1 for cooling fan, short circuit the system depends on oil pressure to switch between cam profiles turbocharger boost control position sensor, circuit intermittent you can see the coolant degassing valve, control circuit low is the final reason of the code.

05521 Possible Causes:

05521 vw fault code may be caused by one or more of the following:

Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
Fuel Rail/System Pressure - Too High
Clutch Position Sensor Circuit Malfunction
Turbocharger Boost Sensor A Circuit Low

What To Check After Fixing 05521 Code

Inspect all the connections secondary air injection system switching valve bank 2, stuck closed
Check the engine oil to ensure it's clean and the viscosity
Restart the vehicle and retest to see if the error returns

05521 Fault Code For Volkswagen Vehicles

The fault code 05521 is associated with Volkswagen (VW) vehicles and indicates a specific issue detected by the onboard diagnostics (OBD) system. Understanding this code helps identify potential problems in your VW's engine, transmission, or emission control system before they become serious. This page provides a detailed explanation of the 05521 code, common causes, symptoms, and possible repair solutions to help you diagnose your Volkswagen efficiently and accurately.

VW 001 - 196 Code Range

Page 1

VW 00000 - 19900 Code Range

VW 28000 - 29900 Code Range

VW 65200 - 65540 Code Range

Page 24