LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

Electrical Issue Details

Old May 29, 2005 | 01:20 PM
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Electrical Issue Details

Ok, I just did some more troubleshooting, and found the following:

The draw is ALWAYS .068A. This does not fluctuate. With ANY of the following connected, the draw is present:

Headlight Switch (NOT the dimmer part, only the headlight part)
Instrument Panel Fuse 4 -- ECM Bat fuse
Instrument Panel Fuse 8 -- Courtesy
Under Hood Fuse 1 (1st row to the right of the relays, closest to the nose of the car, 5a fuse) -- ABS Bat
Battery to Alternator Power Wire

With ALL of those disconnected the draw is .005A.

Ideas?? They're all on the same parallel wired circut (two separate circuits with a single common connection at the distribution block).

I found this out by leaving the multimeter hooked up in line with the battery negative cable and just started pulling and disconnecting things. The single alternator connection goes through the ECM Bat fuse, but if I disconnect that the draw will STILL be present with the battery wire touching the alternator, even though the alternator is COMPLETELY isolated from the rest of the system, save for it being "grounded" via the bolts securing it. If the battery to alternator cable touches any grounding metal (block, valve cover, unpainted surface, ect) the .068 draw is present.

In the intstrument panel fuse block, the #4 and #8 fuses are on the same incoming power wire connection along with breaker 12. Breaker 12 doesn't cause a draw when plugged in though, only Fuses 4 and 8.

Any ideas?? Or should I make my merry way to a place to troubleshoot further and fix with the information I've acquired.
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