In my 89 xjs convertible all the relays are different colors? is this for a reason ? Is there a color code sheet?

 

from my experience relays are just whatever color the manufacturer decides on. I've replaced reds,blue ones, white ones, green ones, and even clear ones that all got replaced by a standard looking black box. All that matters is whats on the inside

 

On an '89 I don't think the relay color is significant. As Sidescrollin' says, it's what's inside that counts. Virtually all have a diagram showing the circuit .

Jaguar threw in a few oddballs with diodes that should not be replaced with a generic relay. On the 80s vintage Jags the relays with diodes were identified by a diagonal stripe painted on the case.

Also, be particularly aware the Jaguar used many relays with a 30-85-86-87-87 terminal configuration. In most cases these can not be replaced by a relay with the much more common 30-85-86-87-87A configuration.

All that being said.....

I strongly suspect that some of the different colored relays you're seeing are not relays at all. Jaguar often used timers and diode packs that look just like a relay and even used typical relay-type sockets/connectors...but they most assuredly are not a relay. I've seen these in red, blue, yellow, green.

On later Jags I'm pretty sure the relay color IS significant....but that's a diffferent discussion.

Cheers
DD

 

Doug is half right. The insides is what counts, but the color is a way Jaguar identifies the relays. i.e blue/white is one for the starter relay.

 

Well, actually, I DID say that color was probably signifcant on later models but not on the '89

It wasn't as much later as I thought, though. In reviewing various tech publications I see frequent reference to relay color for 1990 models, but none at all for 1989 models.

<shrug>


Cheers
DD