WIKI

In some MQB-based cars you can force the IGN to the ON position using a bridge between 3 pins on the Keyless Entry Module connector that is to be found under the plastic cover right below the steering wheel. This will allow you to communicate with the car:

  1. Bridging the pins marked in yellow will force IGN on in the car
Force ignition in MQB cars
Abrites Diagnostics for VAG