1995 chevy s10 blazer, 6v 4.3L, 4x4, with generic 4pin tow package. 4 door
battery drains dead over night. ((new issue))
--everything off, pulled light from under the hood.. nothing should be on except radio clock circuit
--took neg cable off battery
--placed multi meter between battery neg post, and neg cable.
--10V drain was being red.
--pulled individual fuses and the 2 relays (right inside the driver side door) and rechecked multi meter. still 10v drain.
--positive on battery has 3 wires going to it. pulled each one
--2 are good, 1 is showing 10V drain.
--junction box (driver side under the hood, near firewall)
--6 wires total, 2 wires read 10V together as a drain (separated each of the 2 wires in question reads 4.5v)
--if i pull the 2 wires off, i get .5v if that on the cheap multi meter (hard to tell specifically)
--1 above wires, seems like it runs back to the positive on battery (hard to tell from wiring harness still in place)
--1 above wires, looks like it runs through the firewall and towards the fuse box inside driver side door, (hard to tell from wiring harness still in place)
--driver side rear door, the power window will not go up and down, if memory serves a few years back i traced it down to, the multi switch on drivers door being bad for the given window
--radio is dead, i have went through i think 3 radios over last 14 years, (cheapest thing i could get, not really expecting much from them), it is still hooked up, have not replaced it yet.
--doom light on ceiling, directly above center console, i removed light, due to it would never shut off, been like that for many years now.
--wireless (lock/unlock doors) nothing else. i need to use the wireless pad to lock doors after leaving vehicle, if i don't it drains battery, been like this for years.
--recently replaced driver seat, multi switch, (up/down,front forward/tilt of the driver seat).
--i would like to say i have went through about 4 alternators / rebuilds of them
--used key switch was put in, old one went bad.
--swapped ends of 4pin trailer plug due to corrosion.
--2 brakes lines have been replaced with new. (got a hole in them)
--brakes,muffler,oil filters, spark plugs, air filter, radiator flushing, replaced as needed / mileage noted / time since last dealt with was noted. basic generic maintenance stuff basically, nothing major.
again draining battery overnight is a "new issue"
i am still in process of using masking tap, writing numbers on it, and then taping the numbers to the plugs, and what it connects to around the engine. so i can pull the wiring harness'es off and take a look at them for actual worn wires.
---how do you remove the relays, (standing in front of vehicle, left hand side, on firewall. there is 3 of them. side by side. they slide on to a little metal clip. but not able to tell how they clip onto it??? ((so i can continue pulling the wire harness out, and track down one of the 4.5v drains))
--the junction box (standing in front of vehicle looking at engine, right hand side towards firewall), the 6 wires, all i see is 16 and black in color and from what i gather on internet "fusible links" but all the wires are same bloody color, and they all connect to a red wire. EXCEPTION, the one larger red wire, that i assume is going to positive on battery. 1 one these 5 wires has a 4.5v drain on it heading through firewall i would assume, but how do i track what it actually goes to?
below 2 images i found at...http://www.justanswer.com/chevy/3tn4...n-nothing.html
in above diagram,
--i have not found S105 fusible link F, by the generator. ((the wiring harness is all inter wound everything, requiring me to pull entire harness out, to even get to the wires under the electrical tape / hose bib)). or less i am missing something obvious?
--i have found... fusible link A,D,E and G. (and i guess B,C at junction box???) have not bother tracking down fusible link H
working on old tractors 6v, and 12V stuff no real big deal to me, but normally send the cars/trucks off to a local repair shop. and let them pull up codes or let them figure out what is going on.