Error message

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Error messages appear on the Operating Electronics, Navigation Control Module J402 display.

Indicator in display:

Connection to chip reader faulty. Routes are not saved. Please enter routes manually. Please confirm with RETURN.

Error message is shown until RETURN button is pressed.

Malfunction cause:

CAN BUS (Infotainment) from Operating Electronics, Navigation Control Module J402 to Chip Card Reader R99 interrupted.

Check CAN BUS connection → Electrical Wiring Diagrams, Troubleshooting and Component Locations.

Chip Card Reader R99 is faulty.

Replace Chip Card Reader R99 → Chip Card Reader R99 , removing and installing .