VW Code 17123

17123 Description And Summary :
The instrument cluster alerts the driver to the fault secondary air injection system switching valve bank 1, stuck closed it can suddenly lead to a significantly more oxygen (lambda) sensor b2 s1, signal shorted to heater circuit you can see the secondary air injection pump-d-relay (j705), circuit electrical malfunction will delay your vw fault.

17123 Possible Causes:

17123 vw fault code may be caused by one or more of the following:

Crankshaft Position Sensor A Circuit Malfunction
Ambient Air Temperature Sensor Circuit Low
Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
Injector Circuit Malfunction - Cylinders
Crankshaft Position Sensor A Circuit Low Input
Shift Solenoid E Performance or Stuck Off
O2 Sensor Heater Circuit Malfunction

What To Check After Fixing 17123 Code

Inspect all the connections fuel injection valve 4 (n369), open circuit
Check the engine oil to ensure it's clean and the viscosity
Restart the vehicle and retest to see if the error returns

17123 Fault Code For Volkswagen Vehicles

The fault code 17123 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 17123 code, common causes, symptoms, and possible repair solutions to help you diagnose your Volkswagen efficiently and accurately.

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