Radiator fan relay
Discussion
While changing the battery on my '02 chim today, two wires with spade connectors fell from the fuse/relay board. I have sussed out these go to a relay that switches the near side rad fan on. The problem is I have no idea which slots they dropped out of. The SH bible doesn't show the late board that I have with the three rows of relays and fuses that go up the side then along the top. Any pointers would be fantastic as there seems to be no relationship between the removable plugs on the back of the board and the relay position on the front; making the job even more difficult.
Andy.
Andy.
Sorry I don't think I explained very well. The relay is not located on the board but hanging free as part of the loom. There are two larger red wires to it and a smaller red and black pair. The red and black ones were pushed in to the front of the board using spade connectors where a relay normally sits. I'm guessing there was a fault on the board at some point stopping the relay working properly when mounted on the board. When I was removing the battery the two wires fell out of their slots on the board before I had the chance to see where they went.
In that case it should be simply a case of plugging them into the same holes as if it were the relay you were plugging in.
Look at the pattern of the pins on the underside of the relay. Look for the same pattern on the board.
A wire fitted to a pin on the relay should fit to the matching pin position on the board.
Steve
Look at the pattern of the pins on the underside of the relay. Look for the same pattern on the board.
A wire fitted to a pin on the relay should fit to the matching pin position on the board.
Steve
There were four empty relay positions on the board so I didn't want to just randomly try all the slots incase I shorted something and caused more damage. In the end I traced the wiring to the correct position. Still got no idea why this was done as there's no apparent damage to the board to necessitate this being done.
At least it's working...
At least it's working...
Andy_mr2sc said:
Still got no idea why this was done as there's no apparent damage to the board to necessitate this being done.
At least it's working...
Did you take the fusebox off the bulkhead and look underneath, at where the fan relay wires connect?At least it's working...
The chances are the connectors overheated and damaged the fusebox (not unusual) so the relay was mounted externally as a fix. The two low current trip connections would not have been the problem which is why they are still in use, the problem would have been with the other two.
OP has got the T-Car fusebox, which Steve Heath had no knowledge about.
The factory installed them in the very last cars, and it was also the factory method of replacing faulty fuseboxes when they became unavailable.
I've no idea how they wired them, and as the OP explains it may well be the normal way that the relay is mounted (clipped on the outside).
The factory installed them in the very last cars, and it was also the factory method of replacing faulty fuseboxes when they became unavailable.
I've no idea how they wired them, and as the OP explains it may well be the normal way that the relay is mounted (clipped on the outside).
spend said:
...........as the OP explains it may well be the normal way that the relay is mounted (clipped on the outside).
Andy_mr2sc said:
The relay is not located on the board but hanging free as part of the loom.
Why would someone make two connections by shoving two loose wires into the relay side of the fusebox?That has all the makings of a fusebox bypass in my book, but hey
I knew the previous owner who had had the car from new and he wouldn't have done this so I'm guessing it was a factory fit for some reason.
The fuse board is the same as used on a sagaris; the car was one of the last 20 off the production line hence the board used. There is no sign of damage to the back of the board or cut/replaced wiring.
The fuse board is the same as used on a sagaris; the car was one of the last 20 off the production line hence the board used. There is no sign of damage to the back of the board or cut/replaced wiring.
Andy_mr2sc said:
Mine come on separately but I don't even want to start looking for the wiring for the other one. It works so I'm happy...
So you have one relay in the fusebox and one hanging off the loom?I would rip the lot out and do it properly, sounds like it was wired up by a plumber
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