New TTR Death Pictures- THANK YOU all for the notes of condolence and sympathy....
12-29-2006, 01:23 PM
#41
AudiWorld Super User
Thread Starter
that's why I think the switch is bad. There is 'switched' +12V and GND right at the switch itself.
As soon as you hit the key, high amperage currnt is present at the light switch.
if an internal problem was at the swithc, this causeda direct short through the switch to GND.
the fusible link that went was 110A (!). the link should have blown right away, but the smaller gauge wires from the switch went critical *before* the link blew.
this melteed the insulation, statered the smolderign fire even afetr the link blew.
if an internal problem was at the swithc, this causeda direct short through the switch to GND.
the fusible link that went was 110A (!). the link should have blown right away, but the smaller gauge wires from the switch went critical *before* the link blew.
this melteed the insulation, statered the smolderign fire even afetr the link blew.
12-29-2006, 03:47 PM
#47
AudiWorld Super User
Thread Starter
My diagnosis of the problem is a direct fault of the switch. Any "mods" I may have done to the
circuits coming from the headlight, like independantly switching of the fog lights, were done with an after-market in-line fuse and independant switching relay.
If is was the fault of the "fog mod" the fuse to the relay would have blown.
FYI, the parking lights still worked, as well as the fog light, proving to me at least, they were not the issue.
The problem stemmed for switching of the switch all the way over to the headlights.
The resulting direct short *inside* the switch was too much current for the wires, and too little current for the fusible link to blow right away.
The insulation on the +12V wire, and the GND wires into the headlight switch melted, caught fire, before the fusible link blew.
If is was the fault of the "fog mod" the fuse to the relay would have blown.
FYI, the parking lights still worked, as well as the fog light, proving to me at least, they were not the issue.
The problem stemmed for switching of the switch all the way over to the headlights.
The resulting direct short *inside* the switch was too much current for the wires, and too little current for the fusible link to blow right away.
The insulation on the +12V wire, and the GND wires into the headlight switch melted, caught fire, before the fusible link blew.
