burning relay issue!!

hi. I have found a relay (a "normal" one: 87, 87a) that gets RRRRRRRRRRRRRRRRRRREALLY hot so I think it is why the whole fusebox gets hot.

if I unplug it, then the air conditioning does not work, and neither does the radiator fan!



and finally, I have found only an earth wire going from the fusebox to the chasis.. and this wire goes out of the relay I said 3 lines upper.

 

er..............Z2?

I tried and find the corrado KR 1989 fusebox' rear wiring diagrams, but I wasn't able to find it in the forum

Instead, I found post-90

 

oh yes, I forgot, sorry.

I have been having a look at corrado wiring diagrams and there is a wire going from fusebox Z2 (as you say ) to the "-" of the battery.

There is also another one going from the radiator cooling fan to the "-" battery.


thank you very much, I hope my C won't set on fire...

 

hey, just another question:

how can I trace a wire (i.e.) from the engine bay to the fusebox? I mean, since the firewall is in the middle, how can I know where a wire ends?

 

ok


but I think it is strange that if I pull the relay which is attached on the upper section of the fusebox (looking at it would be sitting like in pos. 20 ), both A/C and radiator fans stop working....

should'nt A/C relay be pos. 1??

 

I have borrowed () a pic from this forum to show you some connectors I have in the back of my fusebox. You can see the blue ones on the following pic (the ones on the top):



so, if you look at the following picture, where are these blue connectors supposed to be plugged in??:





THANK YOU FOR YOUR PATIENCE, I AM ''''''NEW'''''' TO electrical issues

 

part number I can't remember, but I think it is like this one




I just swapped it with the one I have for my uprated headlight loom (for low beam).




how do you know they are P Q R U1 U2?
I have many of these connectors in my fusebox... will this "characters" be written anywhere? I believe I have more than 5 connectors. thhankssssssssss

 

ok, thanks.

these plugs seem all the same in my car, and two of them had their wires burnt & black & carbonised :S


does ce2 fusebox have only an earth wire (Z2)? hmmm only one??

 

oh, I have realised that the blue connectors only have one pin in my fusebox. iirc they are red wires

 

* I have, in the "cassettes hole" (I don't know if it was an option where you live), a voltmeter and an oil press gauge, connected through a relay (also a 87 87a) and installed by me. I have found that that relay ALSO gets hot.... which drives me to think that all of this heat is produced by nothing in particular, I mean, it might be a dodgy earth wire... but I checked Z2 wire in the back of the fusebox and it is correctly plugged. I have also found that this Z2 wire is really HARD on it's connection to the battery's negative. It is as hard as a stone... may it be causing all of this?


thanks for looking...

 

Well, as I assume, these 4 (or 3) wires should be earthed. I only have two earthes from the fusebox: Z2 and an aftermarket one for A/C strange-positioned-relay, so I see I have 3 earth wires missing, or not earthed, or whatever.




A2
5 - brn - earth (location 120)

G1
5 - brn/wht- earth (cylinder head?)

U2
13- brn/wht - Dash plug pin 5 (earth & stalk memory switch pin 1)is this an earth?

Z2- brn - battery negative

 

could anyone, please, touch their relays & fusebox when having been driving for about 1 or 1.5hrs? and then tell me if relays get warm(ish)? I'm desperate about this..

 

which ones mate? im sure some of mine get pretty warm

 

hmmm:


positions:
12 fuel pump
10 fogs
3 (or 4), the one that cuts some electrical elements when cranking.


and some others, but the hottest one, is fuel pump.





can you feel the heat on yourself sometimes? I mean, like when you are in front of a fire??

 

not that hot.. some of them are warm to the touch, thats abotu it. ill see if i can narrow down which ones it is