No communication with TCM?

2008 BMW 750LI
160,000 MILES • AUTOMATIC
Avatar
1520YOG619
  • MEMBER
  • 2 POSTS
My end lights flashing, and no crank no start no communications with TCM to reset faults I tried buying 300$ batteries still stuck...
Sep 7, 2024 at 9:32 AM
Advertisement
Avatar
STRAILER
  • ✓ASE Certified Mechanic
  • 54,832 POSTS
  • ASE Certified Mechanic
The first thing we need to do is check the fuses for the TCM, it is a transmission shift solenoid shorts out it can cause the fuse to pop. Here this guide will help, and I have the location of the fuse in the images below:

https://www.2carpros.com/articles/how-to-check-a-car-fuse

Please check fuse # F007 10 amp. Check out the images (below). Please let us know what happens.


Images (Click to enlarge)
Professional Diagram for 2CarPros Members
Click here to log in and view diagram.
Professional Diagram for 2CarPros Members
Click here to log in and view diagram.
Sep 7, 2024 at 10:21 AM
Avatar
1520YOG619
  • MEMBER
  • 2 POSTS
Okay, i will do that and I'll get back to you .
Sep 8, 2024 at 9:52 PM
Avatar
STRAILER
  • ✓ASE Certified Mechanic
  • 54,832 POSTS
  • ASE Certified Mechanic
Sounds good have a great week!
Sep 9, 2024 at 8:14 AM
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.
Ask a Free Question
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.