1) Hi, my horn has stoped working.
Horn works when supplied with 12v (purple/black) and 12v arrives at Fuse 10 fom the switch (purple/black). Supply lost somewhere between the horn switch/fuse 10 and the horn itself.
I can't find the horn on the RAVE wiring diagram for this car but surprisingly the switch is shown on the Engine Immobilisation schematic. It feeds Fuse 10 then the alarm relay (R200). The horn is not shown.
Any clues as to how the supply gets to the horn would be appreciated.
2. I have checked the alarm relay and it is fine but not as shown on the schematic. The schematic shows 87A connected to 87 internally, I do not believe this to be correct. I understood that if the relay has 87A it should be a changeover, normally made contact with 30 as the common. My relay doesn't have 87A but has 87B which is a double pole single throw relay with 30 as the common. I have had the vehicle for 14 years and never changed a relay and the horn worked until recently.
Can anyone throw any light on this?
3) I checked the alarm function and it flashes the indicators but makes no sound. I do not have a sounder shown as D110 on the schematic but have a battery backed unit shown as D154. I assume this to be faulty. I did (long after having no horn, so unconnected) let the vehicle's battery go flat a few days ago and wondered how long it takes to charge the sounder battery. I not that the manual says it charges from the generator so presumably needs the ignition on to do so. I guess, if that is the case, it is to stop the vehicke battery being discharged by charging the sounder battery.
Any info appreciated.
