MihailMB

Hello! My car is all flashing, from cluster, headlights, interior dash, many CAN faults when diagnosing the car!
Can anyone tell me where should i begin to check first? (When Driving the flashing stops for a couple of seconds and than is flashing again!)

rapidoxidation

Start with testing your batteries. If they're on their way out they can cause weird issues.

tjts1

I'm going to guess battery control module or SAM.

2MERKS

Has it rained heavy in your area? Are the passenger's foot well soak/wet? Your drains my be clogged up, and throwing you those signs. Just a thought.
R,
2Merks

Dane500

I'd look at the front SAM. Two wires crossed in mine. Car started by itself, everything turned on and off until finally it started to burn. I had to remove it and splice in a new one. That was "fun"

chassis

Replace the battery and go from there.

MihailMB

Update:
Before Start Up:
Small Battery 11.48V
Big Battery 12.12V
After Start Up
Big Battery 14.13 than jump for a second to 13.86 than back

Can it be with alternator regulator ?

The car is dry i checked under the front mats, everything looks dry no corrosion!

MihailMB

Update:
My key also dont work while closing and opening the central lock
In the rear SAM, fuse nr 8 for Left antenna amplifier module was blown i replaced it and blew right away

chassis

@MihailMB Please post photos of your rear SAM. The symptoms you describe sound like water infiltration into the SAM or other electrical components.

When was the main batter last replaced?

Please post photos of the rear SAM, and rear liftgate seals. Lots of photos.