[Wraithman]

Relay switches to ground, completing the circuit.

 

[mikebentleyturbo2]

Hi Yes you should have 12v to pin 86 from the white and yellow on the windows lift relay ok
this then closed the relay to supply a ground to all windows.
Have you got the tsd4848 yet?
Mike

 

[catman]

yes and on fig 18-7 shows relay 27&28 get the power from the same source but only 28 is hot, weather here bad 32% so not checking much have a 88 super 8 also so can ck the sockets for power, when it comes to british wiring i'm not the sharpest tack in the pack

 

[mykhm]

Hi you can also test the relays out of the car, with a 12v supply, and a DVM, ( Multi meter) to check relay is throwing position, and making contact, Regards

 

[mikebentleyturbo2]

Hi Is your relay 27 labeled as windows lifts relay?
Mike

 

[catman]

hi mike. yes and 28 is window latch whatever that is. i took my ohm meter and probed the sockets 27 #87&85 grd. 30&86 dead # 28 87 power, rest dead. when it gets warmer going to probe the 88 as it all works. too many toys so i don't drive them much maybe less than a 1000 a yr each, don't know why i have them .seems, like it all started when i had to jump start it

 

[mikebentleyturbo2]

Ouch! Never ever jump start a car!!!
A test lamp probe I find more useful than a meter for finding these type of faults. You are testing with ign on ?
Cheers Mike

 

[catman]

on and off, probe and meter, been using battery box for years. any idea what window latch is or does

 

[mikebentleyturbo2]

Hi The latch relay keeps the window lift relay supplied when the ign is off but one of the front doors are open.
Could they make it more complex?
Link out the lift relay see if you get windows working ok
Mike

 

[catman]

sounds right when i'm checking i have door open, good old Prince of darkness. i'm 80 and should be getting rid of these, can't drive 5 cars

 

[mikebentleyturbo2]

No mate keep them, they keep the grey matter working lol

 

[catman]

my ex says i'm a collector of fine junk, 23 here , warehouse doesn't hold heat good so no pedaling today

 

[mikebentleyturbo2]

Wow 23! I'm jealous.
Fine junk🤣🤣.
Keep safe and warm.
2c here ⛄
Mike

 

[catman]

got up to 46 so i went to shop jumped 87 to 30 got windows now . now to see why it's not powering up. now my antibrake light is on. never a dull minute

 

[mikebentleyturbo2]

Hi
Glad you've got windows working, my guess would be the diode open circuit ,I'm sure you've checked F1 B2.
Check what going in (blue/green) with whats coming out (white/yellow) on the diode board above the relays glove box side ok
whats antibrake? you mean ABS?
Mike

 

[catman]

no the light says antibrake .which i guess is ABS on an American car. hopeing not diode board, going to casino today and give them some money

 

[mikebentleyturbo2]

hi
diode board is nothing to worry about, standard diodes on there, cheap replacements.
don't know what the antibrake light is ,maybe someone over there can enlighten us?
Mike

 

[catman]

hi mike found diode board ,hard to get too . everything works fine but widows what if i left jumper in relay with a fused link for a while to get out of shop, know what else it controls?. board hard to fine (ud26535) .again thanks for your help

 

[mikebentleyturbo2]

Hi
The relay is just so the windows only work when the ignition is on, a safety device so if children are left in the car they can't operate them. so yes fine to get going.
You don't need to replace the diode board just the diode if faulty ok
Mike

 

[catman]

don't know how the quote thing got here , but at 80 i don't worry about kids

mike hate to bug you ,got an 74 t type that has fuel coming out of what looks like an orange juice can under left front fender