I have searched the site and did not quite find anything relavent in any threads. Not sure How effective was the search.
It all started saturday night when My BIL mislead into a traffic jam. I noticed quite a few guys were getting too close to my tail and screaching to halt. And soon I found out my break lights were not working.
Sunday morning, I decided t fix the problem myself as it was a SUNDAY, likelyhood of getting a mechanic was less and I was adventurous.
i checked the fuse, its alright. Pressed everything to rule out loose connection from fuse, switch, connectors, etc... nothing happened. Then I decided to check the voltages. could not find my multimeter (when was the last time I used a multi meter.....) so went and bought a new one for 1000 bucks. When I checked the voltage at the fuse no voltage at all...
Hmm Kirchoff's law is wrong
. Later I started doubting if the instrument is really properly grounded? Looked around and could not find a proper ground with out having to scrape paint. Finally I decided to use ciggy lighter's ground. While trying to hook the prod, I inadverdantly shorted the +ve, and.... kaput the fuse went off.
Surprise 1: Ciggy lighter fuse is a 30A rating, Why on earth?
Surprise 2: This fuse is shared between, lighter and AC blower
, so surprise 1 is answered with a new surprise.
3: upon keen look, there are lot many shared fuses with wierd combination of loads. Ciggy lighter and its illumination falls under different fuses..
Some of the relays mentioned as "reserved" in the manual, are being used for unknown reasons and appearantly getting hot.
Surprise 4: After I replaced the fuse (borrowed from rear window defogger) break light issue mysteriously got solved. Honest, I dont know still what was the problem.
Now that the problem got sorted out, I am not seeking a solution. But please post your views about sharing a safety device like FUSE amond various loads like this. Is it becase they can save a lotta money? A fuse to end customer cost 7Rs. and a mis-hap/dissatisfaction could cost much dearer... what U guys think
Is this habit of cutting corners/wires/fuses a practice in other cars too. I heard in Ikon, wiper motor fuse is shared with alternator field.
Your views and examples please