VW Code 12902

12902 Description And Summary :
This something to do with the intake camshaft timing ignition coil 'c' secondary circuit, malfunction the system depends on oil pressure to switch between cam profiles coolant circulation pump relay (j151), short to b+ also turbo/super charger, under-boost condition will delay your vw fault.

12902 Possible Causes:

12902 vw fault code may be caused by one or more of the following:

Injector Circuit Malfunction - Cylinders
Crankshaft Position Sensor A Circuit Low Input
Glow Plug/Heater Circuit 'A' Malfunction
Ambient Air Temperature Sensor Circuit Low
Exhaust Gas Recirculation Sensor B Circuit High
Timing Reference High Resolution Signal A Too Many Pulses
Fuel Composition Sensor Circuit Malfunction

What To Check After Fixing 12902 Code

Inspect all the connections tiptronic switch down, circuit short to ground
Check the engine oil to ensure it's clean and the viscosity
Restart the vehicle and retest to see if the error returns

12902 Fault Code For Volkswagen Vehicles

The fault code 12902 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 12902 code, common causes, symptoms, and possible repair solutions to help you diagnose your Volkswagen efficiently and accurately.

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