Whilst the relay may not be original (i.e. it had ISO numbers instead of W1,
W2, C1 and C2) the circuitry almost certainly is because white/brown is the
correct colour from the relay to the 2nd fuse.
----- Original Message -----
From: "Rick Astley" <firstname.lastname@example.org>
Sent: Wednesday, December 22, 1999 15:08 AM
Subject: Re: Ignition warning lamp solved!
> If you have a universal ISO relay (ice cube size) then it is improbable
> it is an original fit. Maybe a previous owner had added extra loads to the
> accessory circuit and was getting too greater voltage drop. Adding the
> would have solved the problem. I may be wrong but I don't believe the ISO
> standard relay was around in '77. If it is that type not only would Bosch
> fit but also almost any relay from any maker around the world.