How to Fix Headlights on Any Car [FULL Diagnosis] (2003 Toyota Camry)

In this video I go through all the steps necessary to figure out what is wrong with your headlights. I have 2002 toyota camry, but this video aims to help anyone with any car that has headlight problems. This video is full comprehensive diagnosis and guide of troubleshooting your car's headlight electrical system. If possible, then I recommend you find a service manual for your car for electrical schematics. If you cannot find the electrical schematics, then you should still be able to follow this video blindly. Hopefully, this video helps guide you in the right direction to finding the problem with your headlights. Let me know if you have any questions!
TIME STAMPS
00:00 - Check/Replace Light Bulbs
00:43 - Understanding the Electrical Schematic
01:29 - Find the Fuses
02:21 - How to Check Fuses with Multimeter
03:08 - The Relay
03:30 - How to Check the Relay with Control Switch
04:20 - How to Check the Relay with a Power Supply
05:27 - Back to the Schematic
06:00 - How to Check Ground Connection
07:10 - Back to the Schematic Again
08:08 - How to Check the Control Switch
10:00 - Control Switch Pin Layout
11:08 - Pins Needed to Turn on the Low Beams
12:55 - Removing the Control Switch
13:10 - Disassembling the Control Switch
16:50 - Don't Break the Clip
17:48 - Testing the Control Switch
19:35 - Further Disassembly of the Control Switch
20:23 - Dirty Copper Connections
21:00 - Back to Testing the Control Switch
23:15 - Connection Issue

[@JonathanLeeWilson]

Highly detailed, well narrated, and timestamped. That deserves a sub 😯

[@ShadCorliss]

Thank you 100 times over. All my headlights are working now. I had checked one set of fuses for the high beams did not realize I had another set for the low beams. I got info the wiring trying to find a break where non existed. Just got to re protect the wires and my car is back in action.

[@valerasilinsh6507]

Thanks for your explanation only one who shows all systems and it really helps me to figure out what the problem is. It was ground

[@sumitrashinkar1432]

Great troubleshooting..thanks for the video!!

[@jezebellab1779]

So….. I think I might have the same problem. Great video!

[@2002erli]

This is a K I C K - A S S V I V E O ! ! ! Thank you for all your help.

[@totaldla]

Excellent thought process with your troubleshooting. Engineer away! By the way, how much did you end up paying for the assembly?

[@Alex-vi5kp]

It was around $100

[@yourfavcamry]

pls make a vid on how to conect fog light so tursignal so the fogs turn on when the turnsignal bulb is on

[@rohanlorange3660]

Just wondering. Did both globes light up with high beams before you had this issue?

[@jeanenedailey1763]

My headlight relay keeps blowing about every 3 or 4 months. Please help!

[@jassahni5018]

Try the relay that connects to the turn sign. That should fix it.

[@Alex-vi5kp]

It actually ending up being a small switch within the turn signal “wand”/arm that was not making a good contact. Idk if I mentioned it at the end of the video, but I got it to work, but I kind of broke the plastic clip that holds the switch in place. I mean it works, but it can come off when using the turn signal. I ended up replacing the whole turn signal arm a year later (I recorded this video 2 years ago). But thanks for the suggestion!

[@macknumber9]

I have 06 camry...high beams work low beams don't....looks like the fact that the high beams work rules out the relay?

[@m7md5540]

I have a problem on my 2000 Camry. When I press on the break, the low beam front light turns on.

[@billkeithchannel]

Sounds like the wrong type of tail light bulb was forced into the socket. I had that happen on my Delta 88 Royale.

[@joelkittelson815]

GD Washing machine!