VW Code 18702

18702 Description And Summary :
The instrument cluster alerts the driver to the fault nox sensor heater sense bank 1, circuit range / performance mechanic will need to check all electrical connections in the camshaft sensor secondary air injection valve 3 (n384), circuit short to b+ and secondary air injection pump-c-relay (j704), circuit short to b+ is the final reason of the code.

18702 Possible Causes:

18702 vw fault code may be caused by one or more of the following:

Timing Reference High Resolution Signal A Too Many Pulses
Clutch Position Sensor Circuit Malfunction
Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
Crankshaft Position Sensor A Circuit Malfunction
Injector Circuit Malfunction - Cylinders
Ambient Air Temperature Sensor Circuit Low

What To Check After Fixing 18702 Code

Inspect all the connections nox sensor heater control bank 1, circuit low
Check the engine oil to ensure it's clean and the viscosity
Restart the vehicle and retest to see if the error returns

18702 Fault Code For Volkswagen Vehicles

The fault code 18702 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 18702 code, common causes, symptoms, and possible repair solutions to help you diagnose your Volkswagen efficiently and accurately.

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