Operation CHARM: Car repair manuals for everyone.

Information Bus






Data Bus On Board Diagnostic Interface Connector

Optical MOST Bus Connection (Fiber Optic) - A -






1. Input

2. Output


20-Pin Connector - B -






1. Battery + (Terminal 30)

2. LIN 1

3. ACC Rel.

4. ELV

5. CAN-Bus Low (comfort)

6. CAN-Bus Low (powertrain)

7. CAN Bus Low (extended)

8. CAN-Bus Low (instrument cluster)

9. CAN-Bus Low (diagnostic)

10. Shielding (Most diagnosis)

11. Ground - (terminal 31)

12. LIN 2

13. Instrument cluster wake-up

14. Terminal 15

15. CAN-Bus High (comfort)

16. CAN-Bus High (powertrain)

17. CAN Bus High (extended)

18. CAN-Bus High (instrument cluster)

19. CAN-Bus High (diagnostic)

20. Shielding