Volvo 1998 alarm problem

[Radaren]

Hi i have an 1998 Volvo s70 with the original volvo alarm. When i lock the car all the doors lock, the turn indicators flashes once and the LED diode in the dash flash normally. But when i trigger the alarm all the turn indicators flashes and i can hear a ticking sound inside the car, proparly a relay or something, but i cant hear any sound from the alarm horn. i have an little round horn above the engine, on the firewall.
I know the horn is working, because i have tested it on my other volvo, but on my s70 and my alarm is going of, it doesnt make any sound. i have tried to tightened the nut and everything, without any success. does anyone know what the problem could be? and maybe know where the wiring to the horn from a relay or a unit or something? or does anyone know what i can do, and know what the problem could be?
I have also read a lot about relay 210/211, but when im looking in the central electrical unit i dont have those. but i can see im missing relay 206.

[mikealder]

The relay that sounds the alarm horn is 202 (component 2/77 on the wiring schematics), this is located in the relay box near the windscreen on the drivers side of the car on the part that hangs down under the fuse/ relay box (not easy to get to) - Mike

[Radaren]

if i see into the relay unit, i can see that my relay is starting with 205. 201,202,203,204 isnt there, as far i can see does anyone know how i can check the wiring to the alarm horn?

[scutyde]

mikealder is right, the 202 relay is responsible for the horn and is on the topmost row the second from the left. It looks like a normal worker relay so I think a regular relay should work.

[mikealder]

The above picture shows you where the 202 relay is located, this isn't easy to see from under the relay box looking up you are better taking the top cover of the box (4 torx headed screws) then peer down in the gap between 101/102 assuming that isn't fitted on your car see:



Hope this helps - Mike