I am working w my crashed Mazda Cx5 2020 with a current code of U0100 lost communication with TCM. No front radar no cruise control and no front facing camera working. Car has check engine light on and i need to troubleshoot the circuit. Anyone knows where to get the TCM circuit diagram

 

Has the crash damaged been repaired?

 

The ATX connector has pinout:
A (yellow) -pwr
B (black) - gnd
C (violet) - pwr
J (yellow) - starting system
E (white) and F (red) - HS-CAN
G (brown) and H (grey) - MS_CAN

Have you checked to see if the AT fuse is OK?

 

Yes damaged been repaired i can film the car and put it on youtube. We bought a replacement radar from ebay and no luck i dont know if they blow like airbags when a car crash.

How can i check the wiring diagram. I have a power prope yellow and black got power

 

I know the header says prius but its for the mazda. One reading was w radar connected and one without.

 

Yellow and violet should have power, black should be ground. Test voltage with a multimeter - key on - one probe to the connector and the other to opposite polarity battery post. I'd have very little faith in a reader that's displaying the wrong vehicle. Forscan is one that definitely does support your vehicle.

 

Are you 100% sure all the front wiring loom is in perfect condition?
Are you 100% sure all the earth points on the front & 1/4 panels are clean & free of paint?

Was the replacement radar calibrated to your vehicle & aligned using appropriate equipment?

 

Vehicle has good grounds i double checked and the electrician has checked them as well. The original radar was crashed so i got a replacement and the info was transferred from the original to the replacement.

The transmission lcd flicker the electrician suspect a bad ECU but im not buying it still. This mazda has a demon in it.

 

Hi did u fix ur problems?i just wondering i have some problems do u know how to fix this after crash car not turn on is show code u0100 . What should i do ?thanks