I have resolved most of my electrical gremlins, but none of us has been able to resolve the issue with the horn. It worked at first, but has since stopped working.
The schematic indicates that the horn has continuous power, and the horn button on the steering wheel simply creates a ground to allow it to work. We've checked the fuses and relay and they are all good. We can get the horn(s) to work simply by grounding the Red/green wire on connector B68 at the steering wheel connection.
Is it possible that the steering roll connector has gone bad? Do these ever fail? I'm hoping to avoid pulling the steering wheel if possible, as that is more likely to cause problems than fix them. Has anyone else had this problem?
Regards,
Dave