Audi Workshop Service and Repair Manuals > A1 > Vehicle electrics | Electrical system | Instruments, GCI | Data bus diagnostic interface | Pin assignment of multi-pin connector on data bus diagnostic interfaceJ533

Pin assignment of multi-pin connector on data bus diagnostic interfaceJ533 - with fibre optic cable

Pin assignment of multi-pin connector on data bus diagnostic interface -J533- - with fibre optic cable

Connection for optical MOST bus (fibre optic cable) -item A-

1 -	MOST bus input

2 -	MOST bus output

Multi-pin connector, 20-pin -item B-

1 -	Battery + (terminal 30)

2 -	LIN data bus 1

3 -

Not used

4 -	Electrical steering column adjustment without screening (GND)

5 -	CAN bus Low (convenience)

6 -	CAN bus Low (drive)

7 -

Not used

8 -	CAN bus Low (instrument cluster)

9 -	CAN Bus Low (diagnosis)

10 -	Ring circuit break diagnostic lead

11 -	Earth – (terminal 31)

12 -	LIN data bus 2

13 -	Instrument cluster wake-up

14 -	Terminal 15

15 -	CAN bus High (convenience)

16 -	CAN bus High (drive)

17 -	CAN bus High (extended)

18 -	CAN bus High (instrument cluster)

19 -	CAN bus High (diagnosis)

20 -

Not used

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