Looking for help with this on my saf.

Basically just stopped working one day, light on button doesnt light up as it should and it doesnt de mist screen.

Have removed the button to check that out.

Can anyone help with resistances etc.

Im going across pin 1 and 2 and they are open circuit, when the button is pressed you get continuity across them but the second you take your finger off the button it goes open circuit again.

Anyone any ideas on how to propery test the switch or the multiplug on the car?

cheers

 

Yeah that sounds right, have you checked the fuse? can't remeber if the fuse is in the fusebox or not, have a feeling it's under the passenger side of the dash somewhere towards the centre console.

 

maybe will try that james as we had all the wires out behind the dash to try something with the ecu.

anyone sure where he fuse is?

 

Have you disconnected the battery? i *think* the heated front screen wires are seperate to the rest of the loom and just has a eyelet that goes onto the battery, so you might have not reconnected that wire?

 

The heated front screen has its own seperate loom with a single blue/black wire witha connector on that connects to the car loom for an igntion live so it only works with the ignition on. The positive is direct from the battery as James says

 

have loked for fuse under passenger dash and can only see two fuses with two relays..

both look ok.

will go have a look at the battery as its has been off a few times too.

does the switch sound to be ok?

 

pressing the button just operates a time latch relay, might be the relay not working or the fuse on the screen or relay.

 

anyone know what rely it is?

I can see the blue/black wire going to the switch but dont have that at battery.

 

I think the relay is grey, mines located behind the glove box with several other relays/fuses for the engine and ABS looms.

 

check the fusable wires that run just under the skuttle panel as have known then to break or rust away!

 

It connects into the car loom behind the speedo cluster iirc Euan

 

There are two relays a timer relay and a power relay,on mine they're behind the glovebox.

 

this sounds too complicated for me

oh well nearly summer

 

I reckon you should never be out in your car when you really need the heated window on

FAR too dodgy lol

 

Have you got a positive 12v and negative at the switch euan ? Ididn't have a neg at mine,fixed a neg to it and it worked again.

 

You say it stopped working one day

All i am saying is have you tried it with the engine running as pretty sure you got to have the engine running not just the ignition on

Suppose cos of the "load" it draws, and as already stated the switch is only a signal to the timer relay, but cant remember what colour wires or where it is sorry


Steve

 

Chop..Im not gay like you northen boys

KSA...i cant get any kind of voltage at the switch...DC yeah?

Rapid one...

yeah i have tried it with engine on.

The car has had alot of work done on it recently and it stopped working after this.

realy need to be able to trace the whole circuit i suppose?

 

Yeah should be dc euan,there's fuses beside the relays behind the glovebox on mine m8 not sure if the same on 2wd though.

 

Think someone should come and fix it for me

will have to try and have a proper look the mora after work..

thanks for all the help folks

Can someone maybe put a basic what is where for the circuit so i can check it over bit by bit?

Not asking much eh

 

Open the bonnet, at the corners where the screen is you will find the wires coming out the screen, follow this, one wire will disappear as this goes to the relay the other is connected to the battery.

 

Thanks James...will have a look

 

pouring rain so will have to wait until tomorrow now

 

had a wee look after work and found a black relay and a grey relay which have wires to them that match the switch and the wires coming from the screen.

How do i check the relays?

I cant any way the wires connect to the battery? they (brown and black/purple) just come down from screen and thru bulkhead.

pics of other people wires would be great

 

Anyone?

 

For the windscreen cables brown is negative euan and black/violet is the 12v positive m8,for the power relay the positive is brown/yellow and negative is brown i dont know the colours for the timer relay sorry .

 

cheers mate...
so i should have power at the brown/yellow when the engine is running?

 

Once you've pressed the h/f/s switch yes.

 

Right...dont have power at the black/yellow wire..

dont seem to have any power anywhere on the circuit...

Can someone tell me what colour the wire going to the battery is?

 

One from the battery is red m8.

 

where does it go?

i have a thick red wire going to one of the relays.

 

if i can find it i'll dig out the screen loom i've got tucked away somewhere in the garage

it's a stand alone loom and only plugs into the ecu loom to tell it the engines running

if the engine is not running then it won't wrok

but from the sounds of it you haven't got power anywhere which would point to the actually switch being fubar

 

cheers doji that would be great.

Surley there should be a constant feed to one side of the switch?

but what relay does tha come from?

stupid things like this piss me off

 

I checked this morning and you are right the screen wires do vanish into the loom, i thought the heated screen loom was stand-alone to the main loom.

All i can suggest is continunity check between the relay red and the battery.

 

The switch activates the timer relay which powers the power relay and feeds to the screen,thick red wire goes to the power relay.

 

i shall go and have a dig around right this moment

 

top man doji!

KSA..so i should have power on the thick red wire all the time when engine running?

12v dc?

james check for continuity to ensure the thick red wire is actually attached to the battery?

 

well, i've had a good look and what i found even surprised me
here's a list of a quick scout:

3 x 24V granada engine looms
4 x granada cd/tape deck looms
2 x rs2000 engine looms
1 x scorpio 2.3 engine loom
5 x sierra twincam looms
6 x sierra abs looms
3 x granada abs looms
4 x granada heated seat looms
2 x electric sunfoor motors
1 x granada heated screen loom (different ot he sierra one as it goes into the fuse box and is not stand lone )
more central locking motors than you oculd shake a stick at
more granada electric seat motors than you oculd shake a stick out
about 20 other bits of loom from the granada/sierra range
and various other bits and bobs

anyone fancy a heated seat switch

 

Should be live full stop euan as its straight from the battery m8.

 

but no sierra heated screen loom
i've got 2 tucked away for a rainy day, but i'll be buggered if i can find them

sorry mate

 

ok will have to check this the mora as its peeing down now...

cheers for all the help boys!

will get this bit by bit