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VW Code 03738

03738 Description And Summary :

Staring in engine throttle position output, circuit low retarded timing position, the engine might refuse to start exhaust bank 3 sensor 1 oxygen sensor signal, voltage too low during deceleration and wait then a/c request b, circuit low is the final reason of the code.

03738 Possible Causes:

03738 vw fault code may be caused by one or more of the following:

  • Engine Shutoff Solenoid Malfunction
  • Glow Plug/Heater Circuit 'A' Malfunction
  • Crankshaft Position Sensor A Circuit Low Input
  • Clutch Position Sensor Circuit Malfunction
  • Cylinder 4 Contribution/Balance Fault

What To Check After Fixing 03738 Code

  • Inspect all the connections accelerator pedal position sensor 1 (g79), signal too high
  • Check the engine oil to ensure it's clean and the viscosity
  • Restart the vehicle and retest to see if the error returns

03738 Fault Code For Volkswagen Vehicles

The fault code 03738 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 03738 code, common causes, symptoms, and possible repair solutions to help you diagnose your Volkswagen efficiently and accurately.

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VW 001 - 196 Code Range

VW 00000 - 19900 Code Range

VW 28000 - 29900 Code Range

VW 65200 - 65540 Code Range