BMW General Module 4 or GM4
GM4 Part numbers:
61.35-8 369 484 GMIV HIGH 12V UTA (from 98 M3 4-dr, 95 318i)
61.35-8 369 485 GM IV LOW UTA (from 96 328is coupe, 96 M3 2-dr, 97 318is, 97
M3 2-dr, 98 Z3 convertible)
61.35-8 353 095 Grundmodul IV (from 95 318i 4-dr, 95 325iC convertible, 94 318iC
convertible)
61.35-8 360 060 GMIV-LOW 12V (from 95 M3 2-dr, 98 318i 2-dr)
61.35-8 364 149 GMIV HIGH UTA
61.35-8 364 150 GMIV LOW UTA
The BMW GM4 is used on the E36 3-series from model year 1994 until the end of production. Also used on the Z3 coupe and roadsters from model year 1997 until end of production. One thing I saw said these modules where made by Hella, but, I think mine is made by UTA (United Technologies Automotive).
What does the GM4 module do? It controls interior lighting, central locking (door locks, trunk and fuel filler door), door lock heater, power windows and power sunroof.
The GM4 is located behind the glovebox above the Relay Module 4 (RMIV) and Washer/Wiper Module.
This module uses 5 relays. Two of them are the familar V23078-C1002-A303 relays, available here, that are also use on the BMW GM3 and GM5 modules. The other three relays are V23072-C1061-A303, available here, that are also used in the BMW GM3 module.
I have arbitrarily numbered the relays in the picture below. Relays 1 & 2 are V23078-C1002-A303. RLY1 is for the front driver side window. RLY 2 is for the front passenger side window. Relays RLY3, 4 and 5 are V23072-C1061-A303 and are used together to control the door locks. For rear window control the GM4 connects to the Relay Module 4 or RMIV. This module contains a pair of V23078-C1002-A303 relays as well.
BMW General Module II (GM2) Page
BMW General Module III (GM3) Page
BMW General Module V (GM5) Page
V23072-C1061-A303 Relays Diagram
V23078-C1002-A303 Relays Diagram
