Re: 84 Vanagon Parasitic Draw
Posted: Thu Mar 24, 2016 5:44 am
It's actually tucked up under the dash pod. I popped the cover and pulled the pcb - nothing obvious to report. I'm soliciting the help of an EE friend of mine, just out of curiosity. I'm interested to know if there is a design flaw (did it always do this? I'd be shocked) or if a faulty component is to blame.
I noted one diode that measured 'differently' on my multimeter compared to the rest (red arrow), but I didn't desolder anything from the board so the test is suspect at best.
I also noted the hot (+) and cold (-) terminals for the brake monitoring circuit. This is what lets 30mA bleed at all times. I get a reading on my diode setting on my multimeter (both polarities) but no audible 'beep' - whatever that means.
Regardless, further exploration is just a novelty to me at this point. The important thing is I have eliminated the parasitic draw and won't kill my battery while parked any more.
I noted one diode that measured 'differently' on my multimeter compared to the rest (red arrow), but I didn't desolder anything from the board so the test is suspect at best.
I also noted the hot (+) and cold (-) terminals for the brake monitoring circuit. This is what lets 30mA bleed at all times. I get a reading on my diode setting on my multimeter (both polarities) but no audible 'beep' - whatever that means.
Regardless, further exploration is just a novelty to me at this point. The important thing is I have eliminated the parasitic draw and won't kill my battery while parked any more.