Muncher Posted August 7, 2021 Share Posted August 7, 2021 So I have a brand new battery and now I'm getting a draw with it. Things I have new in it are a new radio and map lights. I do know they turn off though when the trucks off. I also have led headlights with a h4 harness. What could be my problem ? Link to comment Share on other sites More sharing options...
Muncher Posted August 7, 2021 Author Share Posted August 7, 2021 I also do have a 2 gauge battery cable kit witu a fuse on it. Link to comment Share on other sites More sharing options...
MiNi Beast Posted August 7, 2021 Share Posted August 7, 2021 Check radio. Sometimes memory wire gets wired backwards. Did you and Jesse share same wiring schematics? Link to comment Share on other sites More sharing options...
JustEmptyEveryPocket Posted August 7, 2021 Share Posted August 7, 2021 Start by watching THIS video all the way through. Twice. Then look up some more video explanations. Search for things like "parasitic draw" and "finding amperage draw". Then dive in with your multimeter and start having fun. Link to comment Share on other sites More sharing options...
Muncher Posted August 7, 2021 Author Share Posted August 7, 2021 12 minutes ago, MiNi Beast said: Check radio. Sometimes memory wire gets wired backwards. Did you and Jesse share same wiring schematics? I looked up the exact colors of are radios wiring and then pioneers and the wired it according to that. Link to comment Share on other sites More sharing options...
Muncher Posted August 7, 2021 Author Share Posted August 7, 2021 4 minutes ago, JustEmptyEveryPocket said: Start by watching THIS video all the way through. Twice. Then look up some more video explanations. Search for things like "parasitic draw" and "finding amperage draw". Then dive in with your multimeter and start having fun. I did watch that video once I just don't have any electronic tools like that Link to comment Share on other sites More sharing options...
MiNi Beast Posted August 7, 2021 Share Posted August 7, 2021 Simple solution....battery disconnect. doesn't solve underlying problem but does give you an opportunity to find the source if still driving truck. Been there done that. Link to comment Share on other sites More sharing options...
JustEmptyEveryPocket Posted August 7, 2021 Share Posted August 7, 2021 You don't have a multimeter yet? Get one. They are almost required to work on these trucks. Otherwise, what do you think you are missing? Put the meter in amp mode between the truck and the battery, check the reading, then start pulling fuses. When the reading drops you have found the circuit. Report back at that point so we can help you figure out what runs on that circuit and which is the likely culprit. Link to comment Share on other sites More sharing options...
Muncher Posted August 7, 2021 Author Share Posted August 7, 2021 Just now, JustEmptyEveryPocket said: You don't have a multimeter yet? Get one. They are almost required to work on these trucks. Otherwise, what do you think you are missing? Put the meter in amp mode between the truck and the battery, check the reading, then start pulling fuses. When the reading drops you have found the circuit. Report back at that point so we can help you figure out what runs on that circuit and which is the likely culprit. I will try this. One weird thing I realized though not sure it's connected to this problem but a tad bit of a ring of green light appeared around my cigarette lighter that I have never noticed before Link to comment Share on other sites More sharing options...
Muncher Posted August 7, 2021 Author Share Posted August 7, 2021 4 minutes ago, MiNi Beast said: Simple solution....battery disconnect. doesn't solve underlying problem but does give you an opportunity to find the source if still driving truck. Been there done that. True don't want to kill my brand new battery Link to comment Share on other sites More sharing options...
MiNi Beast Posted August 7, 2021 Share Posted August 7, 2021 i still have yet to own one let alone have the know how of being able to understand how to use one. Ive gone this long with only a 12v test light. Either has power or dosent. Link to comment Share on other sites More sharing options...
Muncher Posted August 7, 2021 Author Share Posted August 7, 2021 Ok so I got one what setting does it need to he on and does the positive terminal need to be moved to the other spot? Link to comment Share on other sites More sharing options...
MiNi Beast Posted August 7, 2021 Share Posted August 7, 2021 At this point 👉 I go to my big brother. 👈 Link to comment Share on other sites More sharing options...
JustEmptyEveryPocket Posted August 7, 2021 Share Posted August 7, 2021 I can't read the writing on your meter from the photo. The setting you are looking for is amps, usually a typed "A". You will need to select this on both the dial and where one of your wires plugs in. Then you need to put it in series with the negative post on your truck's battery. Remove the negative battery cable. Somehow attach one lead to the negative post on the battery and the other lead to the negative wire that you removed. That way your multimeter is in-between the battery and the wire that grounds on your truck. What reading do you get? Read HERE for much more detail and better explanation. Link to comment Share on other sites More sharing options...
Muncher Posted August 7, 2021 Author Share Posted August 7, 2021 Ok thank you. I will try this when I get home Link to comment Share on other sites More sharing options...
Ωhm Posted August 7, 2021 Share Posted August 7, 2021 Green Left: OFF Green Right: TEMP Link to comment Share on other sites More sharing options...
Muncher Posted August 7, 2021 Author Share Posted August 7, 2021 Just now, Ωhm said: Green Left OFF Green Right TEMP Thank you! Link to comment Share on other sites More sharing options...
OldManComanche Posted August 7, 2021 Share Posted August 7, 2021 Pull the cigarette lighter out, and see if your problem disappears. I had a battery drain on a Jeep YJ. The heating element was rusted up and pushed in (to heat up). The heating element would let a current through but there wasn't enough continuity to heat it, just enough to drain the battery. Link to comment Share on other sites More sharing options...
Muncher Posted August 7, 2021 Author Share Posted August 7, 2021 Pull the cigarette lighter out, and see if your problem disappears. I had a battery drain on a Jeep YJ. The heating element was rusted up and pushed in (to heat up). The heating element would let a current through but there wasn't enough continuity to heat it, just enough to drain the battery.I'll definitely try that. Then if not that I'll start doing fuses Link to comment Share on other sites More sharing options...
Muncher Posted August 12, 2021 Author Share Posted August 12, 2021 On 8/7/2021 at 3:16 PM, Ωhm said: Green Left: OFF Green Right: TEMP I'm on these settings and it's just saying .1 when on the neagitve end to the neagitive cable Link to comment Share on other sites More sharing options...
JMO413 Posted August 13, 2021 Share Posted August 13, 2021 Start pulling fuses to you get zero. Then you know what circuit is the culprit. I have seen multiple times it's the glove box light. Screw falls out of the latch or the latch didn't close good enough. Link to comment Share on other sites More sharing options...
Muncher Posted August 13, 2021 Author Share Posted August 13, 2021 13 hours ago, JMO413 said: Start pulling fuses to you get zero. Then you know what circuit is the culprit. I have seen multiple times it's the glove box light. Screw falls out of the latch or the latch didn't close good enough. It wouldn't give me any reading when I had it setup at all. Turns out my battery was defective Link to comment Share on other sites More sharing options...
schardein Posted August 13, 2021 Share Posted August 13, 2021 On 8/7/2021 at 1:20 PM, Muncher said: I will try this. One weird thing I realized though not sure it's connected to this problem but a tad bit of a ring of green light appeared around my cigarette lighter that I have never noticed before XJs/MJs have a dash light that illuminates the green ring around the cigarette lighter. Normal, if the dash lights are on. If they are not on, something weird is going on. Or as Oldmancomanche said, maybe your lighter is jammed in and heating up all the time, which sounds like a recipe for disaster- I'd check that asap. Link to comment Share on other sites More sharing options...
Ωhm Posted September 1, 2021 Share Posted September 1, 2021 On 8/12/2021 at 4:10 PM, Muncher said: I'm on these settings and it's just saying .1 when on the neagitve end to the neagitive cable This DVOM will only read up to 400mA. Any current higher than this will blow the meter fuse. The DVOM here in the picture is set for µA (mirco amps) and the RED lead is NOT in the correct location for a current reading. RED should be connected to 400mA MAX FUSED terminal. Link to comment Share on other sites More sharing options...
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