Join Date: Dec 2002
Location: Saint Louis, Missouri
Re: Battery Drain problem....Help!
It's possible that the driver's switch is the problem and to check that, remove it from the door jamb, unplug the two wires going to it, do not allow them to touch the body of the car and then see if you have any current draws. The driver's switch is actually two switches in one. If there is still a current draw using the diagram you have there are connectors off of that circuit to help track down the problem (it's just how hard are they to access and unplug).
Where it’s at I don’t know but I’m going to think close to the fuse block but try unplugging connector C200 and if the power drain goes away then there is something past this junction drawing power (of which the diagram shows a trunk light circuit but you also have underdash lights and the roof light in this leg of the circuit).
If C200 is unplugged but there is still a current drain then either the console light portion is drawing power or it is the glove box light or the cigarette lighter portion.
If the problem lies past connector C200 then it branches to connector C231 and C250. Unplug those to see which way the problem is.
I know you have said "All the wiring I looked at under the dash "looked" OK." but I have done a lot of wiring installations in cars and can make a harness look untouched when looked at by others and I have to wonder if someone has not made a splice into the harness at some point and it's not easily detectable (like maybe someone wired up a vanity light on one of the visors or added a Lojack module or a pager alarm, who knows as to how invisible they might have done the installation).
1974 Spirit Of America Nova (being restored), 1973 Nova Custom, 1968 Chevy II (Garage Find 2012)
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