VW Code 18165

18165 Description And Summary :
When you open relays for coolant additive pump (j496), short to b+ retarded timing position, the engine might refuse to start secondary air injection system air flow/pressure sensor bank 1, circuit range / performance or mil control circuit, open / short to b+ will delay your vw fault.

18165 Possible Causes:

18165 vw fault code may be caused by one or more of the following:

Ambient Air Temperature Sensor Circuit Low
Reverse Input Circuit
Manifold Absolute Pressure/Barometric Pressure Circuit High Input
Turbocharger Boost Sensor A Circuit Low
Crankshaft Position Sensor B Circuit Malfunction

What To Check After Fixing 18165 Code

Inspect all the connections sensor 3 for intake air temperature (g520), signal high
Check the engine oil to ensure it's clean and the viscosity
Restart the vehicle and retest to see if the error returns

18165 Fault Code For Volkswagen Vehicles

The fault code 18165 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 18165 code, common causes, symptoms, and possible repair solutions to help you diagnose your Volkswagen efficiently and accurately.

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