kadeas Posted May 6, 2005 Report Share Posted May 6, 2005 Just wondering, what is the max voltage reading I should see in my car? I got a reading of 15.5 at the cigarette lighter, is this too high? :? And, what is the max amperage draw you should see at the batterys negative terminal with everything off? I'm trying to test for a short. Quote Link to comment Share on other sites More sharing options...
Redwingvksm Posted May 6, 2005 Report Share Posted May 6, 2005 15.5 is quite high. Usually it's around 14-14.5 tops. I'd personally like to see less than .05 amps on cars w/ computers (As in 2000+) but some do vary up and down. A short will be quite high... (1-2+) Quote Link to comment Share on other sites More sharing options...
jdcutty Posted May 6, 2005 Report Share Posted May 6, 2005 What kind of problems are you having to make you suspect a short? Quote Link to comment Share on other sites More sharing options...
kadeas Posted May 6, 2005 Author Report Share Posted May 6, 2005 My new Optima battery died over night, jump-started and drove it around for a bit. I then used a test light in between the battery- and -cable, and the light lit up. Pulled fuse #10, (I/P Electronics batery feed), the light went very dim, so the short is in that circuit. With fuse pulled, key in the ignition switch, a door open, and you press lock or unlock on lock switch, the chime goes off! Does anyone's car besides mine do that? Give it a try and let me know! It's a 95 gp 2 door. Pull # 10 fuse; open door; key in ignition; press lock switch, does chime go off? Thanks! Quote Link to comment Share on other sites More sharing options...
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