06-06-2021, 07:44 PM
Hi
The only thing I can think of is that the horn wire insulation has frayed and the core is touching one of the small curved arms within the self cancel mechanism, or there is a some other fault effectively causing a connection between them. This may not matter initially, but once the wheel is turned and the arm touches one of the metal projections inside the (earthed) steering wheel boss the horn will be earthed and will sound.
I suggest pulling out the horn/indicator mechanism (sorry) and giving it a close visual check backed up by a test meter.
I'm wondering if the tape was an attempt to work around this fault ?
The only thing I can think of is that the horn wire insulation has frayed and the core is touching one of the small curved arms within the self cancel mechanism, or there is a some other fault effectively causing a connection between them. This may not matter initially, but once the wheel is turned and the arm touches one of the metal projections inside the (earthed) steering wheel boss the horn will be earthed and will sound.
I suggest pulling out the horn/indicator mechanism (sorry) and giving it a close visual check backed up by a test meter.
I'm wondering if the tape was an attempt to work around this fault ?