Mfa display don't work. (edit lcd works but mfa option not)

I have a problem with the mfa display,
I bought this mfa system from the internet so i don't now for sure if the clocks are good.
but the backlight bulbs are working, the led's (altnernator, coolant ect)
also.
is there a way to check the display?
anyone with help please reply!

thnx!
greetings from holland!

Are you getting any digits on the display at all or completely blank?

Hairyarse said

Are you getting any digits on the display at all or completely blank?

completely blank…

Trying to get my head around the wiring diagram - it's been a while! I think you should have voltage at pin 3 of the 6 pin plug and pin 6 of the 14 pin plug on the back of the clocks.

If I am right with that then if you're not getting voltage then I guess the MFA is broken.

Anyone else confirm that??

Hope that helps?

Andy

Hairyarse said

Trying to get my head around the wiring diagram - it's been a while! I think you should have voltage at pin 3 of the 6 pin plug and pin 6 of the 14 pin plug on the back of the clocks.

If I am right with that then if you're not getting voltage then I guess the MFA is broken.

Anyone else confirm that??

Hope that helps?

Andy

when i look at pin 3 & 14 there is no voltage.
but should i messure between 3 & 14 or
3 & ground
and 14 & ground ?


on the 14pin plug there is one kabel that is not connected to the plug that is position 10 .. is that usual ?

helppp  :dontknow:

3 & ground and 14 & ground, not across 3 & 14

Can't see pin 10 on the diagram, not sure if that means not connected or not?

Anyone else? :dontknow:

Hairyarse said

3 & ground and 14 & ground, not across 3 & 14

Can't see pin 10 on the diagram, not sure if that means not connected or not?

Anyone else? :dontknow:

ik have 9 volt at pin 6 & ground
this is the cable for the clock ?

is it possible that the lcd is broken?

thnx

Could well be, check all fuses too, not sure which one though!

If it was a problem with the MFA taking 'readings' for the functions you would still have digits on the LCD

When i put my old clock (without the mfa option) the lcd display works fine.

maybe i should find another mfa display..

looks like it may be the case :cry:

ok, i have bought a new mfa dashboard, and the clock works..
but the mfa buttons don't work..
does anyone know were the cables go?
the brown cable goes to the ground..
the with one goes to the 14pin plug..
the others are hanging lose..

thanks

on the picture you see the cables i mean:

Not sure unless they've pulled out of the white plugs? There is normally just the two plugs in to the back of the clocks.

ok but that connector i don't have.
when i connect the cables to the contact points it wont work either
 :dontknow:  :dontknow:

Any digits showing up on the lcd? It could be that the electronics are working but failing to display on the lcd which is a simple problem to fix.

golf1 said

Any digits showing up on the lcd? It could be that the electronics are working but failing to display on the lcd which is a simple problem to fix.

yes i have a new mfa dashboard, and the time is on the display..
is there a way to avoid the buttons on the wiper switch?
so i can test if there are broken ore not?

anyone with a bit of help? thnx

2 wires go to the MFA stalk from the input plug on the clocks, it si a small plug, check its connected.

golf1 said

2 wires go to the MFA stalk from the input plug on the clocks, it si a small plug, check its connected.

i have relocated al the wires and plugs.
i'm sure that the cables are in the good position but still nothing happens when i push the MFA button..
the clock is on the lcd display and works normal.

 :dontknow:  :dontknow:  :dontknow:

does anyone know what to do?
 :dontknow:  :roll:  :dontknow:  ops:  ops:

Maybe the MFA button is the faulty part? I wouldn't know what to check to be honest? Maybe wiring diagram will show you something to trace and test?