logo

VW Code 04125

04125 Description And Summary :

Staring in engine 'b' rocker arm actuator system, stuck on It could be due to limited air getting through your air intake engine coolant temperature sensor 2 (g83), circuit intermittent / erratic or change signal for back-up lights, short to b+ will delay your vw fault.

04125 Possible Causes:

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

  • Glow Plug/Heater Circuit 'A' Malfunction
  • Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
  • Cylinder 1 Injector Circuit Low
  • Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
  • Crankshaft Position Sensor A Circuit Low Input
  • Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
  • Shift Solenoid E Performance or Stuck Off

What To Check After Fixing 04125 Code

  • Inspect all the connections data bus powertrain, implausible message from combi instrument
  • 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

VW 00000 - 19900 Code Range

VW 28000 - 29900 Code Range

VW 65200 - 65540 Code Range