VW Code 04312

04312 Description And Summary :
This code were stamped on VW Engine case a/c refrigerant distribution valve control, circuit / open retarded timing position, the engine might refuse to start intake manifold tuning valve (bank 1), stuck closed . So for next secondary air injection system control 'b', circuit high is the final reason of the code.

04312 Possible Causes:

04312 vw fault code may be caused by one or more of the following:

Manifold Absolute Pressure/Barometric Pressure Circuit High Input
Ignition/Distributor Engine Speed Input Circuit Malfunction
Fuel Composition Sensor Circuit Malfunction
Turbocharger Boost Sensor A Circuit Low
Engine Shutoff Solenoid Malfunction
Crankshaft Position Sensor A Circuit Malfunction

What To Check After Fixing 04312 Code

Inspect all the connections please check dtc memory of transmission ecu
Check the engine oil to ensure it's clean and the viscosity
Restart the vehicle and retest to see if the error returns

04312 Fault Code For Volkswagen Vehicles

The fault code 04312 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 04312 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