VW Code 01238

01238 Description And Summary :
The instrument cluster alerts the driver to the fault exhaust turbocharger control module 1 (j724), voltage supply outside permissible range It could be due to limited air getting through your air intake change-over valve for intake manifold flap 2, high or change drive by wire-mil (k132), circuit short to b+ will delay your vw fault.

01238 Possible Causes:

01238 vw fault code may be caused by one or more of the following:

Crankshaft Position Sensor A Circuit Low Input
Engine Shutoff Solenoid Malfunction
Ignition/Distributor Engine Speed Input Circuit Malfunction
Injector Circuit Malfunction - Cylinders
Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
Cylinder 4 Contribution/Balance Fault
Cylinder 1 Injector Circuit Low

What To Check After Fixing 01238 Code

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

01238 Fault Code For Volkswagen Vehicles

The fault code 01238 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 01238 code, common causes, symptoms, and possible repair solutions to help you diagnose your Volkswagen efficiently and accurately.

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