Check that the map disc is not deformed or cracked.

Refer to the multi-display power source circuit .

If the power source circuit is operating normally, proceed to the next step.

Check if the component shown by the sub-code is displayed in the check result of the other components.

Refer to the multi-display power source circuit .

If the power source circuit is operating normally, proceed to the next step.

Check that the GPS antenna cord is securely connected to the navigation ECU connector.

Lexus IS250 IS220d GSE20 ALE20 NAVIGATION

Enter the "Navigation Check" mode (Vehicle Sensors) .

Lexus IS250 IS220d GSE20 ALE20 NAVIGATION

Refer to the multi-display communication error .

Insert a disc with a playable file and check if the disc can be played correctly.