Mazda5 Information Display Totally Blank

[Loves Mazda]

Hello everybody.
My Mazda 5 from 2007 has served me very well, but now I have a problem - that I hope someone have a solution to.
The Information Display is totally blank - not a single segment. The Clock which works separately in the left side of the display works fine. The Display light up fine - but when I turn on the headlight, the Display nearly loose all the light. This makes me think that the problem is connected to a fault, maybe in an electrical relay, that steel all the power to the Display. I dont think that the fault is in the Display it selves, as it doesnt show just a single segment. The AirCon, Radio and CD-player works normal - BUT after disconnecting the headwire to the Battery a few minutes, in the hope that a power-reset would solve the problem, the radio/CD doesnt work anymore. I gues that this is because it will take a passcode to install these functions again because of theft-security, but as I cant read the Display - I cant put in the code.
I have checked all fuses in the 2 fuseboxes, all relays for burned connections, disassemblet the Display to check all solders - but everything looks fine.
Does anyone have an idear
Best regards "Loves Mazda"

 

[phunky.buddha]

Open the center dash and look for loose connection? Broken solder joints on the display board?

 

[Loves Mazda]

Open the center dash and look for loose connection? Broken solder joints on the display board?

Hey phunky.buddha
Thank you for your answer. I have allready checked for loose connections, and specially the solder connections on the Display in a microscope, but everything looks fine.
Do you think that the fault could be outside from the display, as it dont miss just some of the segments - but is totally blank, and nearly loose all the light/power when I switch the headlight on?
Best regards

 

[Loves Mazda]

Hello Mazda friends.

I have for some times tried to find a solution to solve the problem with my Information Display - which is totally blank. Not a single segment. The clock on the left side of the display is OK.
Im pretty sure that the display itself is OK - and the fault is to be found another place.
I have checked all fuses in the 2 fuseboxes, and checket all harness connections I could find (hours of work to get in behind all the shields).
After reading different forums - I think that the problem is one out of these two possibilities:
1. The system has to be reset . by a partical code (how to do it?)
2. A Relay to the A/C Controls has a bad connection to ground (I cant find the relay)
Can anybody help me here?

Very best regards
Peder

 

[tawrus80]

What year? Stereo and climate controls work as usual?

 

[Loves Mazda]

Hello tawrus80.

Sorry - I didnt see your responce before now.
My Mazda5 is from 2007.
Climate controls works fine. Stereo is now out of function - but its because at a time I disconnect from the battery, and thereafter the stereo went off - but before that the stereo works fine, even that the display was blank.
Forgive me my danish/english language.

Very best regards
Peder