snafu Posted April 3, 2014 Report Share Posted April 3, 2014 . . . he tells me he has voltage present on the frame of his Land Rover Discovery when he disconnects the battery. After determining that the battery was the only source of power in his Discovery with the key off, I'm like, "Bro I've been doing this a LONG time and I've never seen that." While he's explaining it to me, I interrupt him and ask, "Can you tell me how you measured that?" Here is his answer: "I connected my test light to the battery negative post and then touched the probe of my light to the frame. It sparked and the light lit up!" Who's smart enough here to tell me what's really going on? [Yes, I already know and explained it to him.] Quote Tony Candela - SMD Sales & Marketing Email me at [email protected] to learn about becoming an SMD Partner! Link to comment Share on other sites More sharing options...
SnowDrifter Posted April 3, 2014 Report Share Posted April 3, 2014 My guess is: He disconnected only the negative terminal on the battery. When he connected the test light, it completed the ground circuit and lit the bulb That is a funny story though Quote ~~~~~~~~SAY NO TO PHOTOBUCKET~~~~~~~~ Snow's DD-1 tracks here: https://www.stevemeadedesigns.com/board/topic/167433-snows-dd-1-tracks/ My take on OFC vs CCA: https://www.stevemeadedesigns.com/board/topic/110381-things-that-piss-you-off-in-the-car-audio-world/?do=findComment&comment=2461444 Link to comment Share on other sites More sharing options...
soundsystemaniac Posted April 3, 2014 Report Share Posted April 3, 2014 The test light completed his circuit lmao thats a good one! Quote Chevy astro 2 18s and 9k rms Walled!http://www.stevemead...rms-42-inch-tv/JEEP GRAN CHEROKEE SRT8 BUILD!2 JL AUDIO 15s trunk buildDC XL 15 buildDC level 3 18 buildhttp://www.stevemead...verunner-build/ http://www.facebook....hp?id=646651228 Link to comment Share on other sites More sharing options...
snafu Posted April 3, 2014 Author Report Share Posted April 3, 2014 Correct. Believe it or not, GM used to actually train technicians to chase down parasitic draws with a test light in this fashion. As if one could tell just how much current via the intensity of the bulb . . . Quote Tony Candela - SMD Sales & Marketing Email me at [email protected] to learn about becoming an SMD Partner! Link to comment Share on other sites More sharing options...
snafu Posted April 3, 2014 Author Report Share Posted April 3, 2014 SO, what would happen if he tried to start the engine with the test light connected in this fashion? Surely, you guys won't get that answer so quickly . . . Quote Tony Candela - SMD Sales & Marketing Email me at [email protected] to learn about becoming an SMD Partner! Link to comment Share on other sites More sharing options...
Pro7 Posted April 3, 2014 Report Share Posted April 3, 2014 (edited) The wire on the probe would burn up rather quickly with that many amps trying to travel through it to start the engine. And that was in 2 mins instead of 6, so even quicker..to be wrong.. Edited April 3, 2014 by Pro7 Quote I've gotten a blowjob and picked up my iphone behind her back to see what email notification I got from smd before Link to comment Share on other sites More sharing options...
Bship Posted April 3, 2014 Report Share Posted April 3, 2014 (edited) that was my first thought as well or pop the bulb Edited April 3, 2014 by Bship Quote CARS 14 Sierra crew cab daily, Small build coming one of these days 69 C-10 fleetside in many pieces, won't be done till the end of time Last car '12 Focus with build log http://www.stevemeadedesigns.com/board/topic/165619-2012-focus-btl-15-crescendo-sundown-audio-control/ Link to comment Share on other sites More sharing options...
SnowDrifter Posted April 3, 2014 Report Share Posted April 3, 2014 Nothing. It would be no different than connecting the test light to either battery post. The light has so much internal resistance I'm not sure it would even allow the starter solenoid to engage, let alone energize the starter and power all the other electronics Quote ~~~~~~~~SAY NO TO PHOTOBUCKET~~~~~~~~ Snow's DD-1 tracks here: https://www.stevemeadedesigns.com/board/topic/167433-snows-dd-1-tracks/ My take on OFC vs CCA: https://www.stevemeadedesigns.com/board/topic/110381-things-that-piss-you-off-in-the-car-audio-world/?do=findComment&comment=2461444 Link to comment Share on other sites More sharing options...
Smurfboy Posted April 3, 2014 Report Share Posted April 3, 2014 What if "this guy" is the member of SMD in here? That'll be funny, haha. Quote Link to comment Share on other sites More sharing options...
SnowDrifter Posted April 3, 2014 Report Share Posted April 3, 2014 What if "this guy" is the member of SMD in here? That'll be funny, haha. What if he's you? Quote ~~~~~~~~SAY NO TO PHOTOBUCKET~~~~~~~~ Snow's DD-1 tracks here: https://www.stevemeadedesigns.com/board/topic/167433-snows-dd-1-tracks/ My take on OFC vs CCA: https://www.stevemeadedesigns.com/board/topic/110381-things-that-piss-you-off-in-the-car-audio-world/?do=findComment&comment=2461444 Link to comment Share on other sites More sharing options...
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