WebJul 23, 2024 · From what I can see, that kind of draw is likely on the 'high side of normal'. Found a TSB concerning the key-off draw of the electronic HVAC ctrl head (apparently, it can take 'hours' to go to sleep, and GM considered it normal): Bulletin No.: 02-01-39-007B Date: November 05, 2007 INFORMATION Subject: Automatic Dual Zone HVAC Battery … WebJan 19, 2024 · Replied by washer on topic Battery draining, no parasitic draw! It's possible it is an intermittent load. Things like wiper motors (usually rear wipers) will periodically try to park and draw ~5A for short periods. Various modules and wake up and create large current draws as well. If you can put a scope on it with a very slow sweep you might ...
New method of parasitic draw testing leads to diagnosis of battery ...
WebJun 2, 2014 · The scan tool found no communication with any of the modules, with the exceptions of the BCM and the AntiLock Braking System (ABS) modules. There is also a … WebJun 4, 2014 · Using the Matco Parasitic Drain Tester for Parasitic Draw The Matco parasitic drain tester has the unique ability to shunt or electrically remove the fuse from the circuit without physically ... bayview durban
PARASITIC LOAD EXPLANATION & TEST PROCEDURES - GM …
WebJul 26, 2024 · Re: Parasitic draw issue. by v8dave » Sat Jul 25, 2024 2:40 pm. Try removing the fuses in the battery box under the crivers seat and checking current draw there. mk7 08reg 2.4 T350 LWB MHR RWD. mk6 X reg 2.4 T350 LWB MHR RWD - scrapped. mk4 J reg 2.5 L300 LWB MHR RWD - sold on. WebOct 6, 2008 · Divide the reserve capacity by 4, amp hour rating by 2.4. 18.2. Compare this to the multimeter milliampere reading taken in the previous step. The parasitic current drain should not exceed this number. Example: If a battery has a reserve capacity of 100 minutes, (60 A/H) the current drain should not exceed 25 mA . WebSep 2, 2024 · Anyway, I begin all of my parasitic draw diagnostic routines by checking the state of health of the vehicle's battery first. I have been burned in the past by testing systems that were acting unusual only to find their voltage was right at the border of being acceptable. Modules have a way of acting unusual without proper voltage or ground. bayview dump