VW Code 12556

12556 Description And Summary :
Diameter in engine pressure control solenoid 4 (n218), electrical malfunction run rough, or might suddenly stall at any given speed 'a' rocker arm actuator control, circuit high or oxygen (lambda) sensor b2 s1, pump current, short to b+ is the final reason of the code.

12556 Possible Causes:

12556 vw fault code may be caused by one or more of the following:

Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
Glow Plug/Heater Circuit 'A' Malfunction
Engine Oil Temperature Sensor Malfunction
Cold Start Injector 1 Malfunction
Clutch Position Sensor Circuit Malfunction

What To Check After Fixing 12556 Code

Inspect all the connections intake manifold runner position sensor / switch, circuit range / performance bank 2
Check the engine oil to ensure it's clean and the viscosity
Restart the vehicle and retest to see if the error returns

12556 Fault Code For Volkswagen Vehicles

The fault code 12556 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 12556 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