VW Code 12502

12502 Description And Summary :
The instrument cluster alerts the driver to the fault fuel injector group 'd' supply voltage, circuit low run rough, or might suddenly stall at any given speed oxygen (lambda) sensor b1 s1, pump current, short to ground and wait then throttle position (tp) sensor (g79), error message from ecm is the final reason of the code.

12502 Possible Causes:

12502 vw fault code may be caused by one or more of the following:

Timing Reference High Resolution Signal A Too Many Pulses
Exhaust Gas Recirculation Sensor B Circuit High
Engine Shutoff Solenoid Malfunction
Cylinder 1 Injector Circuit Low
Ignition Coil A Primary/Secondary Circuit Malfunction
Cylinder 4 Contribution/Balance Fault

What To Check After Fixing 12502 Code

Inspect all the connections please check dtc memory of central electric control ecu
Check the engine oil to ensure it's clean and the viscosity
Restart the vehicle and retest to see if the error returns

12502 Fault Code For Volkswagen Vehicles

The fault code 12502 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 12502 code, common causes, symptoms, and possible repair solutions to help you diagnose your Volkswagen efficiently and accurately.

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