Intermittent dead battery in the AM ! '04

[live2pull]

Probably the easiest way to test circuits for draw;
DMM to mA, leads on the battery, then start pulling fuses. Does not identify source of draw other than narrowing down to the circuit, but, sometimes that is 90% of these types of issues.

 

[Fless]

Probably the easiest way to test circuits for draw;
DMM to mA, leads on the battery, then start pulling fuses. Does not identify source of draw other than narrowing down to the circuit, but, sometimes that is 90% of these types of issues.

Wouldn't it be easier to test across each fuse instead of pulling a bunch of fuses?

 

[live2pull]

Wouldn't it be easier to test across each fuse instead of pulling a bunch of fuses?

You could. I just pull and put back until I see a drop to 0 mA.

 

[Fless]

You could. I just pull and put back until I see a drop to 0 mA.

But doing that can potentially wake up a module.

 

[Fless]

I added PCM/ECM connectors to my prior initial list of known potential sources of parasitic draw.

Intermittent dead battery in the AM ! '04

Great '04 Tahoe . Had this Tahoe almost 3 years & been dealing with battery drain down to 4v this AM . Months (6+) mo or this time (2) times in a week . In my reading in the past I’ve run across ABS controller as interment problem . I replaced he ABS controller for abs failure . i know this...

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