2024/07/29

Benz 38 PIN Multiplexer OBD1 Pinout

Here is the wiring scheme of the 38-pin to multiplexer cable is as follows (Car end - Multiplexer end).


On the 38-pin end, the wires have round crimp connectors that slide onto the backs of the 38 pins. On the multiplexer end, each wire is soldered to a cylindrical socket for the pins on the multiplexer.

1-A
2-B
3-C
4-D
5-E
6-F
7-G
8-H
9-J
10-K
11-L
12-M
13-N
14-P
15-R
16-S
17-T
18-U
19-V
20-W
21-X
22-Y
23-Z
24-a
25-b
26-c
27-d
28-e
29-f
30-g
31-h
32-i
33-j
34-k
35-m
36-n
37-p
38-q


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