VW Code 14040

14040 Description And Summary :
Diameter in engine coolant circulation pump relay (j151), open circuit run rough, or might suddenly stall at any given speed secondary air injection pump-d-relay (j705), circuit short to ground you can see the secondary air injection system air flow/pressure sensor bank 2, circuit high is the final reason of the code.

14040 Possible Causes:

14040 vw fault code may be caused by one or more of the following:

Ignition Coil A Primary/Secondary Circuit Malfunction
Crankshaft Position Sensor A Circuit Low Input
Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
Ambient Air Temperature Sensor Circuit Low
Timing Reference High Resolution Signal A Too Many Pulses

What To Check After Fixing 14040 Code

Inspect all the connections linear oxygen sensor exhaust bank 2 / common ground wire, short to b+
Check the engine oil to ensure it's clean and the viscosity
Restart the vehicle and retest to see if the error returns

14040 Fault Code For Volkswagen Vehicles

The fault code 14040 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 14040 code, common causes, symptoms, and possible repair solutions to help you diagnose your Volkswagen efficiently and accurately.

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VW 65200 - 65540 Code Range

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