driver189

iTrader: (1)

I've narrowed it down to the ROOM fuse in the kick panel and with the engine off, there is a steady draw of 75ma. I pulled my pioneer radio and it dropped to 63ma, which is still higher than I would have expected. Going through each fuse 1 by 1, I have narrowed it down to the ROOM fuse - pulling it drops the draw to 2ma.

Looking through the 94 electrical guide, not being an expert circuit diagram reader, it looks like that fuse has the brake lights, backup lights, cruise control system, and the rest of the lights on the back of the car.

I'm now stuck trying to figure out if 61ma is "normal" draw for that circuit or if there's something going on in there.

Any help would be appreciated.

dblboinger

iTrader: (3)

What exactly is your initial problem? Is your battery going dead overnight or something?

Look @ W (pg 24 of the Wiring Diagram)
It shows you that the ROOM fuse is supplied by fuse BTN (60A) and it feeds all of the following sections:
1) Engine Control, Fuel Control & Ignition System (B-1a) - the ECU in particular
2) Instrument Cluster & Warning Lamps (C-1a)
3) EC-AT Control (H-1, H-2)
4) Interior Lamp, Cargo Lamp, Door Key Illumination, Ignition Key Illumination & Glove Box Lamp (I-3)
5) Audio System (J-1, J-2)
6) Power Antenna (J-3)
7) CPU (J-4) - both CPU1 & CPU2

I would keep tyring to find out the correct current draw on this fuse with everything off so you know what you are looking for. 63mA may not be a big problem given all the systems that parallel off of this fuse. Unfortuantely I can't help you there because my car is apart right now with the battery removed. Once you find that out, you are going to have to go through each system to find the excess current draw, if in fact there is one. To do this you will be disconnecting as close to the "load" as possible. For instance to eliminate the CPU section (section J-4 in the manual) you would have to disconnect JB-07 and JB-09. If you disconnect JB-07 and the current drops drastically then that would be your problem. Be careful around any CPU because they generally don't react well to repeated power surges, like repeatedly connecting/disconnecting the power source.

driver189

iTrader: (1)

Thanks for the insight. I might be chasing a ghost here...anyone have a baseline of what their FD pulls for current with the engine off and no lights on?

Maybe 65-75ma is normal?

2 Optima yellow top 51R's have now bit the dust. Sure don't make them like they used to. Probably going to switch to westco miata battery and move it to the bin.

dblboinger

iTrader: (3)

Yeah, Optimas are junk now...not like back in the day. They're made in Mexico now. I'm on my 3rd one now too. The only reason I stay with them is because I have the battery top with 2 built-in fuses and a voltmeter...nobody else makes a battery it will fit.