The best way to Reset a Volkswagen Test Engine Light

Volkswagen cars developed immediately after 1996 are equipped with a technique of sensors regarded as On Board Diagnostics (OBD II). These sensors keep track of a lot of vital engine functions and enable to decrease damaging emissions. When considered one of these sensors fails it sends a signal for the engine computer to illuminate the "Check Engine" light in the dash. To clear this light you will need a diagnostic code scanner. Scanners range in price from $40 to $120 and are available at most auto parts stores. Other People Are Reading Tips on how to Reset the Test Engine Light Ways to Reset the Service Light on a Volkswagen Passat Things You'll Need Diagnostic code scanner Show More Instructions 1

Connect the diagnostic code scanner for the vehicle's diagnostic port. The port will be located in the dash below the heater controls.

2

Turn the key for the "Run" position, but do not start the engine.

3

Press the button on the scanner that reads "Scan for trouble codes."

4

Wait for the scanner to finish scanning the engine's computer.

5

Press the button on the scanner labeled "Clear all trouble codes."

6

Disconnect the diagnostic code scanner from the vehicle.