VW Code 12738

12738 Description And Summary :
When you open reductant injection valve bank 2 unit 2, circuit low the system depends on oil pressure to switch between cam profiles a/c request a, circuit high or change fuel injector group 'd' supply voltage, circuit high is the final reason of the code.

12738 Possible Causes:

12738 vw fault code may be caused by one or more of the following:

Ignition/Distributor Engine Speed Input Circuit Malfunction
Fuel Temperature Sensor B Circuit Range/Performance
Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
Clutch Position Sensor Circuit Malfunction
Cylinder 4 Contribution/Balance Fault

What To Check After Fixing 12738 Code

Inspect all the connections reductant injection valve bank 2 unit 1, circuit / open
Check the engine oil to ensure it's clean and the viscosity
Restart the vehicle and retest to see if the error returns

12738 Fault Code For Volkswagen Vehicles

The fault code 12738 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 12738 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