BMW Relay Module 4 or RMIV
The BMW Relay Module 4 or RMIV is used on the E36 3-series sedans from model year 1994 until the end of production. The P/N of my unit is 61.35-8 353 099. There are many P/Ns.
What does the RMIV do? In conjunction with the GM4 it controls the rear power windows.
The RMIV is located behind the glovebox below the GM4 module.
Below is a picture of my RMIV module.
This module uses 2 relays. The familar V23078-C1002-A303 relays, available here, that are also use in the BMW GM3, GM4 and GM5 modules to control power windows.
I have numbered the relays and when I find out I will explain what each relays does. One is for the left windows and one is for the right. I will update when I find out.
|
Pin
|
Function on Connector X13258 |
Wire Size/Color
|
|
1
|
Data Signal From GM4 X13255-1 |
0.5 Blk/Red
|
|
2
|
Window Motor Left Rear (X13256-1) |
2.5 Blu/Grn
|
|
3
|
Window Motor Left Rear (X13256-2) |
2.5 Blk/Yel
|
|
4
|
Window Motor Right Rear (X13257-1) |
2.5 Blu/Red
|
|
5
|
Window Motor Right Rear (X13257-2) |
2.5 Wht/Yel
|
|
6
|
No Connection | |
|
7
|
No Connection | |
|
8
|
Ground |
Brn/Blk
|
|
9
|
Data Signal From GM4 X13255-7 |
0.5 Blk/Gry
|
|
10
|
Data Signal From GM4 X13254-15 |
0.5 Blu/Yel
|
|
11
|
Data Signal From GM4 X13254-16 |
0.5 Blk/Red
|
|
12
|
Data Signal From GM4 X13253-20 |
0.5 Grn/Red
|
|
13
|
From GM4 X13255-17 |
0.5 Wht/Red
|
|
14
|
No Connection | |
|
15
|
Fuse 19 (30A) |
??
|
| Wire Size (mm2) | AWG equivalent |
| 0.35 | 20 |
| 0.50 | 18 |
| 0.75 | 16-17 |
| 1.0 | 15-16 |
| 2.5 | 11-12 |