VW Code 01406

01406 Description And Summary :
Diagnosing engine bar with pressure control valve 1 (n215), open / short to ground It could be due to limited air getting through your air intake powertrain data bus, missing message from instrument cluster also valve for exhaust flap 1 (n321), short to ground is the final reason of the code.

01406 Possible Causes:

01406 vw fault code may be caused by one or more of the following:

Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
Cylinder 4 Contribution/Balance Fault
Manifold Absolute Pressure/Barometric Pressure Circuit High Input
Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
Crankshaft Position Sensor A Circuit Low Input

What To Check After Fixing 01406 Code

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

01406 Fault Code For Volkswagen Vehicles

The fault code 01406 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 01406 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