Horn relay

[digitalinkjetman]

Anyone know which is the relay for the horn please.....

[armoured farmer]

Bump as I need to know too for a 1.8 ls 52

[Robsey]

This is where TIS gets really silly.

The wiring schematics say that the relay is number K4 in the engine bay fuse box (UEC).
Fuse number 3 by the way. (15 amps -blue fuse).

BUT

The positional map drawing of the UEC does not show a relay K4.
It identifies relays K1 to K3 and K5 to K8, but not K4.
Sadly they are not in a particularly sensible order either.
Going from the back squarer end and moving forward, the relays are....

K7 = Washer pump for headlamps
K5 = Windscreen wiper low/high
K3 = Terminal 15 (ignition live)
small relay sized gap
K6 = Winscreen wiper on / off
K1 = Starter Motor
K2 = Engine control unit.
K8 = a/c compressor. -tucked toward rounded side.
All other relay sockets are unidentified.

[pedro26]

Anybody know where the horn relay is located ?

Possibly you have to remove the engine fuse box , lift it up and it is under there ? but I have not seen any photos or diagrams to confirm that. My horn has packed up, fuses seem ok, I'll get the front bumper off and hard wire to test the horn(s), but the relay could be kaput.