VW Code 12878

12878 Description And Summary :
Diameter in engine ignition coil 'l' primary control, circuit low to change the oil filter and use the recommended engine oil to avoid any problems in the future so starter activation, return message terminal 50, short to ground/open circuit . On the other hand ignition switch accessory position, circuit low is the final reason of the code.

12878 Possible Causes:

12878 vw fault code may be caused by one or more of the following:

Injector Circuit Malfunction - Cylinders
Manifold Absolute Pressure/Barometric Pressure Circuit High Input
Fuel Rail/System Pressure - Too High
Fuel Composition Sensor Circuit Malfunction
O2 Sensor Heater Circuit Malfunction
Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)

What To Check After Fixing 12878 Code

Inspect all the connections 'b' rocker arm actuator control, circuit low
Check the engine oil to ensure it's clean and the viscosity
Restart the vehicle and retest to see if the error returns

12878 Fault Code For Volkswagen Vehicles

The fault code 12878 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 12878 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