Anyone know what the normal battery drain (when not running) on a 92 GMC
Sierra should be?
I looked in the GM factory manuals and could not find amperage draw listed
If anyone knows what the amperage draw (when off) is of individual
electronic gizmos, that would be helpful. Like factory radio, PCM, ABS, and
electronic A/C control...
Also does anyone know if the PCM (and other electronic things) are "awake"
when first powered up, then go into a low power sleep mode? And how long it
would take to go into the sleep mode?*
*The reason I am asking that, is if I disconnect a battery connection, then
place an amp meter in series with the connection, then read a high amperage
draw, perhaps this is just everything being initially powered up. Then after
a period of inactivity (how long?), everything might go into a reduced power
"sleep mode" and then draw less amperage? (So I should not use the initial
amperage draw reading in that case, but wait, then see what it is