Mystery Battery Draw While Parked UPDATE
Update 13 Jan-- ----------- Never know--somebody on here might have an idea what to look for, thanks for any help. 2003 Chev 2500HD LT (so has lots of electrical stuff that works with ignition...
Forum Discussion
there is one VERY important detail about car battery draw with ignition off.
THE VEHICLE GOES THROUGH A SHUTDOWN PROCEDURE ONCE IGNITION IS TURNED OFF. THAT PROCEDURE TAKES TIME AND IS SPECIFIC ON WHAT IS GOING ON.
Trying to measure battery draw before shutdown has actually occurred is IMHO a way to go down a rabbit hole.
So. First, it usually takes 20 minutes or so before it is in full shutdown so checking draw before that is pretty much useless.
Next, for the shutdown to start it usually requires that key is out of ignition, ALL doors, HOOD, trunk, Windows are closed........ get the picture on the next issue.... how to I measure current w/o access to the battery.....
THE VEHICLE GOES THROUGH A SHUTDOWN PROCEDURE ONCE IGNITION IS TURNED OFF. THAT PROCEDURE TAKES TIME AND IS SPECIFIC ON WHAT IS GOING ON.
Trying to measure battery draw before shutdown has actually occurred is IMHO a way to go down a rabbit hole.
So. First, it usually takes 20 minutes or so before it is in full shutdown so checking draw before that is pretty much useless.
Next, for the shutdown to start it usually requires that key is out of ignition, ALL doors, HOOD, trunk, Windows are closed........ get the picture on the next issue.... how to I measure current w/o access to the battery.....
