May 26, 2018 路 It depends on the car and how the horn functions. It should function through a relay. If it is working intermittently, then the wiring should be okay, but isn't a given. You have the horn button, relay, power, or ground connections which might be at fault. You can check the horn directly by attaching a 12vdc source directly to it. Jun 16, 2010 路 188 posts 路 Joined 2002. #1 路 Jun 16, 2010. Got an extremely low mileage 2004 Corsa which has a defective horn. No matter how hard you press the steering wheel there's not a sound from it. I've tried a multimeter over the contact points on the wiring plug to the horn but no output, then stuck a direct 12v to the horn and it worked a treat. Jul 14, 2019 路 If you can hear the relay clicking when the horn is not working, then you can probably rule out the horn button. It's more likely to be the horn itself. 2005 Vauxhall Astra Estate CDTI 1700cc, sadly gone after 7 years. "If you think it's expensive to hire a professional to do the job, wait until you hire an amateur." May 7, 2008 路 Just leave the ignition on when disconnecting the old one and do the same again when connecting up the new one. By leaving the ignition on, the car will see this as an authorised tamper and. 1. Not sound the alarm. 2. Marry up the new power sounder without needing tech2. Oct 14, 2014 路 2006 Opel Zafira Design overall lovely motor one thing that has started to happen, the horn and the control on the steering wheel do not work when the engine is running. But not always sometimes they do more more times than not they don't when the key is turned on but the engine not running the controls and horn work fine. Apr 25, 2015 路 Hi, A look at the cause of an Air Bag light staying on and or Horn intermittent / not working.To Buy Me a Coffeehttps://www.paypal.com/paypalme/JohnBonYouTube Fuse box in passenger compartment Opel/Vauxhall Corsa D. The fuse box is located behind a cover in the glove compartment. Open the glove compartment and remove the cover. To close, first put on the cover, then lock it into position. or. Identifying fuse box. Hi guys, does anyone know where the horn is located? Looked at several Astra H images, appears there are 5 locations that it maybe, but I cannot see it. Its a 2008 1.9 CDTI. Thanks for responses, Vauxhall Astra Central Locking Problems? The central locking on my Vauxhall Astra won't work. I press the button on the key and it doesn't do anything. The car starts ok. When the key is removed from the ignition, the radio stays on (when it should go off) and when you open the drivers door there is a beeping sound like when you leave your Mar 4, 2021 路 Horn relay: R3: Headlamp high beam relay: R4: Rear wiper relay: R5: Heated mirror relay: R6: Fog lamp relay: R7: Rear fog lamp relay: R8: Turn Signal Relay - Right: R9: Turn Signal Relay - Left: R10: Phone audio signal transmitter: R11-R12: Windshield wiper motor relay: R13-R14: Heated rear window relay: R15: Multifunctional control unit: 1-2 xF3tO.