Re: Lost headlights and inst. cluster lamps
- From: "gobroncos" <jimwill76@xxxxxxx>
- Date: 1 Jan 2006 13:28:15 -0800
On my 95 Lumina, I had bad connection at the right rear Stop Lamp. My
tail lights and turn signals worked fine, however, the stop lamps did
not operate. This was again one of those "failsafe," problems, in that
it notified me of the bad circuit by extinguishing my dash lights.
Still investigating this stealing ground scenario. When Mike mentions
"steals enough ground," this, electrically speaking says that a "good"
ground has been compromised and that now a "ground side voltage drop"
exists. This results in lower circuit current. Just how these digital
dashes monitor the circuits invloved, and how they respond is pretty
much model specific and, again, rarely if ever outlined in publications
offered to the public. I suggest always comparing ground side voltage
drop readings with the meter connected to the circuits' ground, and
then with the DMM grounded at the battery terminal itself. Doing this
will check the integrity of the circuits ground, and relieve you from
troubleshooting phantom grounds. The fact that the relay clicks means
that it is getting acuated. The fact that it is affecting the entire
lighting system would point me start troubleshooting at the ouput of
the relay that is being acuated. Jim
.
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