GAS GAS 125 TXT GP 2019 Owner's Manual page 39

Owner's Manual
OBD system
The 4-way socket is located on the right. To connect the Creader VI+ scan tool (or
similar), the protection needs to be removed from the connector.
When the scan tool is connected, it turns on and the start screen appears
connecting to the ISO 15765-4 CAN protocol that our OBD system has.
If the OBD system detects an historical error, the MIL stays on permanently.
Also, if you use the Creader VI scan tool, you can see in Monitor Status the
information MIL status ON. (With the key light in red at the top).
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