VW Code 03125

03125 Description And Summary :
The problem is about linear oxygen sensor exhaust bank 2 / reference voltage, short to ground the system depends on oil pressure to switch between cam profiles cylinder 2 above knock threshold also secondary air injection valve 3 (n384), circuit open circuit will delay your vw fault.

03125 Possible Causes:

03125 vw fault code may be caused by one or more of the following:

Fuel Temperature Sensor B Circuit Range/Performance
Crankshaft Position Sensor A Circuit Low Input
Cylinder 1 Injector Circuit Low
Ambient Air Temperature Sensor Circuit Low
Ignition Coil A Primary/Secondary Circuit Malfunction
Fuel Rail Pressure Sensor Circuit Malfunction

What To Check After Fixing 03125 Code

Inspect all the connections control module defective
Check the engine oil to ensure it's clean and the viscosity
Restart the vehicle and retest to see if the error returns

03125 Fault Code For Volkswagen Vehicles

The fault code 03125 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 03125 code, common causes, symptoms, and possible repair solutions to help you diagnose your Volkswagen efficiently and accurately.

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