Club 80-90 Forums

Anyone know the pin numbers for this type of 5-pin relay? Had no luck on the net. Only terminal 30 is marked

http://hellenautopart.en.ecplaza.net/46.jpg Want to use it as a horn relay - be a waste chucking it just because I don't known the pins.

Looks like a 5 pin changeover relay, the easiest way is to check it with a multimeter across two terminals you will get a few hundred ohms reading they will be pins 85 and 86. Between 30 and another pin will be 0 ohms that will be 87a which leaves the last pin as 87. If you get a 0 reading between 30 and both pins then it is a twin output relay.

Cheers Big Herb fella. Just what I needed. Trying to fit an OOOGAA horn with the button on passenger side as my lad likes greeting other VWs. Got a nice big momentary push button that will be perfect for him but soon realised the horn draws considerably more than I thought so will need a relay

Just for reference, in case anyone else comes across one of these in the bottom of their toolbox, I deduced that this is the pin layout and as Big Herb says, its a changeover relay:



30 to 87a has continuity when relay unpowered, 30 to 87 has continuity when relay is powered. Pins 85 & 86 are the trigger.

Oddly, although the relay had the number 30 written on it (see below), it seems that this had little bearing on where pin 30 was!



Apparently these relays are common on Nissans and other cars made in the far east as well as Vauxhall. Make is 'JIDECO' (now merged with another company) although Hitachi also manufacture them. They appear to come in 'green' or 'blue' so presumably one is higher amperage. The Jideco Relay 60419V (1T 8-94235-627-0 MR5A-211-112V) in a blue case is rated at 30amps. Either way it'll handle the OOOHGAA horn no prob although nowhere meaty enough to handle a split charge system.

The only unanswered question in this puzzle is how I came to have the thing in the first place....

More here http://www.e-jbc.biz/relay-jis-mr5a-eng.html" onclick="window.open(this.href);return false;