Everything works except the horn, steering wheel roller etc. everything works. There is no difference whether with or without traffic lights, etc., as in other cases. In the test on the computer, the horn works, there are no errors in CIM. CIM replaced with a 100% functional one, programmed and exactly the same, everything works except the horn
The wiring could be a problem if your Astra’s Horn is not working when the lights are on. Check the connections between the Horn and the battery to ensure they are secure. If they are, then the problem may be with the Horn itself. Try replacing the Horn to see if that fixes the problem. The Astra H was launched as a five-door hatchback in March 2004. It also has a sport version that is considered as a three-door hatchback. It consists of a windscreen that extends in the roof and provides a panoramic view, due to which it is also known as a panoramic windscreen. Horn not working when lights switched on? 2006 Astra was quoted over 500 pounds for new cis unit. after a lot of digging found that dimming dashboard lights to minimum solves the problem well done 9E3ImG.
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  • opel astra horn not working