I need help in my 2018 Camry, I must of shorted out something when tapping into a wire for a led light, now the lights around my radio do not come on and all other interior lights are dim, but everything else works as it should including the radio, any advise would be great.
@@gman20031 Check no fuses have been blown. If not do a parasitic draw to find which circuit is affected. Then obtain the wiring diagram for that circuit and then isolate the problem area by voltage drop testing. Dim lights means that there is resistance on that circuit which is taking voltage away from the lights. If the fuse for the lights that don't work is blown and you replace the fuse with the correct rated fuse and it blows again then you have a short circuit on that components electrical circuit. You will need to do a voltage drop test as well using a wiring. diagram
Junky you are a star. Best video i have seen for my problem with a fuse that keeps blowing. Very precise and interesting. Thanks for saving the day. All the best Duncan Cornwall UK.
Excellent content! This is the first automotive content creator I’ve ever heard with such good knowledge combined with an ability to explain using simple and concise terms.
I think it is a bad video because the tech should also be considering why the amplifier is putting power to the sub with key off overnight. With the key out the amp should power down and kill power to the sub as the mosfets shut off. The radio output to turn on amplifier should also be tested to see if it is shutting off or if the amp is bad. Maybe the short at the sub burned a transistor in the amp and now the amp will not power down properly. More testing required for guaranteed workmanship.
@@anthonyrybczynski5420 thank you Anthony! Super new to this and your comment makes complete sense. I have now learnt the basics from the video and a little more from you :)
@@Change-Maker look for videos using a bell telephone tool to find the short. You pull the fuse and induce a signal into the circuit with a short. Then there is a second tool that makes a tone, you run it along the harness until the tone stops, then open the harness. You can also buy a similar tool made by power probe. It comes in the power probe master kit #5.0. From what i hear the bell tool works the same just people find the bell tool cheaper.
Thanks so much for your simple step by step clear explanation about how to find a circuit fault on a car ,I even fixed my neighbours BMW following your video.
Your videos are great very informative & very easy to follow. Which is great for us DIY mechanics.This has gave me more confidence with my new multimeter. Many thanks for taking the time to post this. 😊👍👍👌
You can also do the same thing by using a small 12v bulb with leads and alligator clips attached in place of the meter connected between the battery minus post and the ground terminal wire you have first removed. It will light when there is even a tiny parasitic current flowing. The brighter the light then the more the current draw. If you want to try it out then hookup the light as described and open the glove box or a door. The light will get very bright. I learned this from an old mechanic. Be careful out there.
The second way is the correct way to diagnose a draw on modern cars. Pulling fuses is not recommended anymore, although it is still my preferred method.
Your're looking for a parasidic draw not a short.Parasidic put a drain on your battery. Shorts usually blow fuses. You have two kinds of shorts for example power to power shorts which doesnt normally blow your fuse; ifyour press your horn your indicator light comes on. Shot to ground ground most definately blow your fuse since there is no resistance.
Great video ! just too much for me to do . my Chrysler 300 dies out after 3 days sitting with a new battery So I’m just going to break down and bring it to the mechanic and hope he knows what he’s doing 🤞
I have an electrical issue with my car,it had a coolant leaked and over the starter and that prevented the car from starting,no lights or anything will work,I replaced the starter and put a new battery but it drains the battery overnight, any thoughts of what could be the problem? Your video is very helpful I’m going to try to find the problem in the weekend. Thanks for uploading
The fuses actually do NOT protect the components, their functions are to protect the installation and avoid electrical fires. (1.13) 1 - If a component draws too much current it already is bad and the only thing left to protect is the wiring... 2 - If there's a short to ground causing higher current flow than a component can stand, this short will take place before the component and the high current doesn't even flow through it. Think about it😏
max webster If the short takes place after the component current flow will be limited by the component itself to the amount the circuit was designed for.
Thanks, your teaching method is amazing ! I have 2 questions: 1-what is the test name ? Parasitic Condor test ? 2- Can you explain the voltage drop test ? does the voltage across short circuit fuse drops to zero or what ?
great video, learnt alot! im just a home DIYER , I found my chasis to engine strap copper one completly fried out and green in colour, would this be the contribituing factor to my intermittent starting? before me even checking anything someone said if i run a jumper cable anywere on the body to the negative battery terminal and the voltage doesnt drop wouuld this eliminate this wire as being my problem?
My car keeps blowing the FI ECU fuse every time I turn the key to the ON position. Changed the fuel pump and the crankshaft position sensor. I'm ready to junk it. Has under 100k on it. Beautiful car.
That’s a parasitic draw test. And your supposed to be connected to the battery post and the terminal before your break the ground circuit because you’ll get a false reading. Plus once you do break the circuit and your meter is in series you still need to wait for the computers to stop talking before you take your reading.
He says if the battery is low connect it to a battery charger, but he shows it hooking up to a jump starter, this reminds me of the Verge : how to build a computer, using tweezers
I have a 1998 Plymouth Breeze ignition fuel starter fuse keeps blowing I went and bought a fuel pump relay I put that in and still don't work it will turn over because I jumped the fuse was a heavier wire I made a loop with the wire and stuck it where the fuse goes the car turns over but there's no spark or fuel can you tell me the easiest way to find out where the wire is grounding hope that makes sense thank you
Well in my case that turned out to be a broken positive terminal power levels were going all over the place seizure bolt was tightened down all the way but it was not making full contact
I am working on a 2018 navigator that keeps burning the led module for one headlamp then eventually the other side goes away too. How could I trouble shoot this ? The scanner shows short to ground on lighting system. It was in an accident and I repaired it.
I'm experiencing electrical issues in my 1992 Toyota Tercel. Seems to be part of the headlight, parking light and hazard switch wiring. My parking lights randomly turn on. My hazard light switch turns off the engine immediately. Signaling one way flashes bright one arrow and dim the other. I've replaced all of the fuses and relays in the fuse box under the hood. Replaced ignition switch and tested a new multifunction switch. No difference. Seems a short or a ground wire problem but I haven't found the problem. Any suggestions?
Great video thanks! Question... recent purchase 2008 Saturn Astra H 1.8 . My rear passenger power window went down , but wont go up and tha left rear window doesn't go down or up? Have the panel off rear passenger door and would likt to know where to troubleshoot first? both driver and passenger power windows work. Thanks '
Check the wiring harness between the door and the pillars where the door hinges on to the body and also the connectors. A common issue with astras. Will need to solder them together if the wires are broken and that’s the cheapest fix
