VW Code 04125

04125 Description And Summary :
The problem is about data bus powertrain, missing message from airbag controller the system depends on oil pressure to switch between cam profiles rough road / acceleration sensor, electrical malfunction you can see the coolant degassing valve, control circuit / open is the final reason of the code.

04125 Possible Causes:

04125 vw fault code may be caused by one or more of the following:

Cylinder 4 Contribution/Balance Fault
Reverse Input Circuit
Glow Plug/Heater Circuit 'A' Malfunction
Clutch Position Sensor Circuit Malfunction
Ambient Air Temperature Sensor Circuit Low
Crankshaft Position Sensor A Circuit Malfunction
Timing Reference High Resolution Signal A Too Many Pulses

What To Check After Fixing 04125 Code

Inspect all the connections drive by wire-mil (k132), 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

04125 Fault Code For Volkswagen Vehicles

The fault code 04125 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 04125 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