Johnny C
New member
The ABS on my 96 C2 played up about 18 months ago. So I got the main unit, brain and sensors replaced. Most of the problems disappeared, but it still came on at low speed braking )e.g. in a traffic jam). A quick shove of the brake pedal and rebrake and it was fine. More than 20mph and there is no problem. The only bit that wasn't replaced was the loom, and as it was a minor inconvenience I figured wait until something more serious warrants the wings being removed etc.
Then recently my horn started going off under very heavy braking. An interrsting safety feature perhaps but it probably worries the person in front a bit when some 993 comes tanking up behind them at high speed blowing the horn. A piece of foam was put behind the horn which worked for a while, but the foam has gotten deformed through pressure, so the horn started going off again.
So yesterday I jammed a bit of rubber behind the top of the horn pad (I worked out it was the top that seemed to be the problem). On the way home I discovered that the ABS problem has more or less disappeared.
It could be a highly improbable coincidence that the ABS got sorted at the same moment as I fixed the horn, but I suspect the two are related.
Does the wiring loom from the horn run beside the ABS wiring a any point, or do they connect in any way (for example a common earth)? I wondered that if my horn has been making a partial connection and upsetting the ABS voltages through a dodgy connection or worn bit of insulation, it might help track down the cause of the ABS problem.
Then recently my horn started going off under very heavy braking. An interrsting safety feature perhaps but it probably worries the person in front a bit when some 993 comes tanking up behind them at high speed blowing the horn. A piece of foam was put behind the horn which worked for a while, but the foam has gotten deformed through pressure, so the horn started going off again.
So yesterday I jammed a bit of rubber behind the top of the horn pad (I worked out it was the top that seemed to be the problem). On the way home I discovered that the ABS problem has more or less disappeared.
It could be a highly improbable coincidence that the ABS got sorted at the same moment as I fixed the horn, but I suspect the two are related.
Does the wiring loom from the horn run beside the ABS wiring a any point, or do they connect in any way (for example a common earth)? I wondered that if my horn has been making a partial connection and upsetting the ABS voltages through a dodgy connection or worn bit of insulation, it might help track down the cause of the ABS problem.
