Power windows, radio, fuel gauge just quit working

1997 BMW Z3

88,000 MILES • 2.8L • 6 CYL • 2WD • MANUAL

COBBLERMAN

MEMBER
1 POST

My car was parked for about four days. Went to use it today and multiple items will not work. Power windows, radio, fuel gauge. I checked the individual fuses and they all look good. Is there one fuse or relay that would control those items?

Sep 19, 2018 at 10:02 AM

STRAILER

✓Experienced Mechanic
55,224 POSTS

Hello,

It sounds like the BCM behind the glove box has gone out. Here are the wiring diagrams so you can see how the system works. I would get a used one and plug it in to see what happens. You might need to get it initialized at the shop which should run about $130.00.

Component ID A104, Body Electronics Control Module (ZKE IV)
Location Behind Glove Box

Check out the diagrams (below). Please let us know what happens.

Cheers, Ken

Images (Click to enlarge)

Professional Diagram for 2CarPros Members
Click here to log in and view diagram.

Sep 21, 2018 at 4:26 AM