Unless you left something like a door/dome light on, ALMOST ALWAYS, the young technicians are missing the real source of THAT 650 milliamp drain. It is the ECM that has not been given it's required after engine shutdown time delay, usually less than 30 minutes, that allows the ECM to enter SLEEP MODE. Then you should see less than 50 milliamps.
One has to remember there is going to be some draw on the system due to the memories in computers,clock and radio etc.There's always some draw general rule with GM. anyways is no more than 25 mili-amps or .2 amps.
thats right. 2.0 amps of constant draw will drain your battery in a couple of days.
dazz355 1 week ago
hi,so .20 is acceptable not 2.0
orozco53204 1 week ago
Unless you left something like a door/dome light on, ALMOST ALWAYS, the young technicians are missing the real source of THAT 650 milliamp drain. It is the ECM that has not been given it's required after engine shutdown time delay, usually less than 30 minutes, that allows the ECM to enter SLEEP MODE. Then you should see less than 50 milliamps.
BYENZER 1 month ago
@BYENZER thanks this is a really good TIP
NFORSA 2 weeks ago
agreed. .2 amp would be acceptable
dazz355 2 months ago
One has to remember there is going to be some draw on the system due to the memories in computers,clock and radio etc.There's always some draw general rule with GM. anyways is no more than 25 mili-amps or .2 amps.
MrTech502 2 months ago