How to fix Light issues in Cars

Roy Aishwarjyo
4 min readFeb 25, 2021

So recently I have been studying about automobiles a lot. Here is a minor part of my research on automobile problems and solutions. I have taken the references from various sites and medias and I am undoubtedly grateful to them. Automobile is getting interesting for me day by day!

Symptoms:

https://carcody.com/bad-spark-plugs-symtoms/

1. Turn Signal Won’t Light Up- DEFECTIVE TURN SIGNAL SWITCH, TURN SIGNAL BULB BURNT OUT, TURN SIGNAL BULB BROKEN, SHORT IN TURN SIGNAL WIRING

Major Reasons:

1. Dead Light Bulb

2. Faulty Turn Signal Switch

3. Blown Out Fuse

4. Oxidation On Bulb Sockets

For more

1. https://www.cashcarsbuyer.com/why-dont-my-blinkers-work-5-c ommon-causes-of-turn-signal-problems/

2. https://www.cashcarsbuyer.com/why-dont-my-blinkers-work-5-c ommon-causes-of-turn-signal-problems/

Solutions:

1. https://axleaddict.com/auto-repair/Turn-Signal-Problems-and-Dia gnosis#:~:text=Note%3A%20Normally%2C%20you%20are%20de aling,Turn%20Signal%20Flasher’%20further%20down. 2. https://www.youtube.com/watch?v=3EQ2mf_zGEM

2. Turn Signals Don’t Blink — SHORT IN TURN SIGNAL WIRING

Major Reasons:

1.https://axleaddict.com/auto-repair/Turn-Signal-Problems-and-Diagn osis#:~:text=VI.-,Turn%20Signals%20Don’t%20Flash,a%20bad%20tur n%20signal%20switch.

2.https://www.cashcarsbuyer.com/why-dont-my-blinkers-work-5-comm on-causes-of-turn-signal-problems/

Solutions:

1. Locate your relay cluster. You can find this in your car’s owner’s manual.

2. Locate the turn signal relay. This should also be in your owner’s manual.

3. Once you can see your relays, remove the old turn signal flasher relay and replace it with the new one.

For more search

1. https://www.liveabout.com/replace-turn-signal-relay-281409 2. https://www.cashcarsbuyer.com/turn-signal-relay/

3. Headlights Flicker- POOR CONTACTS IN THE HEADLIGHT SWITCH, HEADLIGHT RELAY ELECTROMAGNET IS WEAK, HEADLIGHT SWITCH IS FAILING

Major Reasons:

● Bad Bulbs/Lamps. Headlight bulbs, like household bulbs, have a life cycle.

● Weak Battery.

● Failing Alternators.

● Loose Connectors or Fuses.

● Overstressed Wiring.

● Failed Communication.

For more search

1.https://www.yourmechanic.com/question/my-headlights-flicker-whe n-i-drive

2. https://reddielectricwichita.com/blog/electrical/why-do-my-lights-keep -flickering-or-blinking

Solutions:

● Replace the Bulbs.

● Inspect the Wire Fusing Panel

For more search

1.https://www.carifex.com/blogs/stories/ultimate-guide-to-fixing-flicke ring-headlights-on-cars

4. Headlights Don’t Turn Off- HEADLIGHT RELAY IS STUCK, HEADLIGHT RELAY IS DEFECTIVE

Major Reasons:

1. https://www.lifewire.com/car-headlights-wont-turn-off-534834 Solutions:

1. https://carfromjapan.com/article/car-maintenance/headlights-wo nt-turn-on/

https://eskipaper.com/images/subaru-wrx-sti-tuning-garage-1.jpg

5. Brake Lights Don’t Light Up- SHORT IN BRAKE LIGHT WIRING,DEFECTIVE BRAKE LIGHT SWITCH

Major Reasons:

1. https://axleaddict.com/auto-repair/Why-My-Brake-Lights-Dont-W ork#:~:text=When%20your%20brake%20lights%20don,a%20burn ed%2Dout%20light%20bulb.&text=One%20or%20more%20lights %20don,and%20refuse%20to%20go%20off.

2. https://cartreatments.com/tail-lights-dont-work-brake-lights-do/

Solutions:

1.Blown Fuse. If your lights don’t illuminate on either side and your brake light switch is good, then the next thing to check is the brake light fuse. 2. Bad Socket. If you have a single brake light out and the bulb is good, then the next step is to check the light socket itself.

http://knowhow.napaonline.com/4-common-brake-light-problems-solve/

6. Turn Signal Dashboard Lights Don’t Work- DEFECTIVE TURN SIGNAL SWITCH

Headlights Always On- HEADLIGHT SWITCH IS STUCK IN THE ON POSITION, SHORT IN HEADLIGHT WIRING

Major Reasons:

1. https://auto.howstuffworks.com/auto-parts/brakes/brake-tes ts/how-to-test-brake-lights.htm

2. https://carfromjapan.com/article/car-maintenance/5-reasons why-brake-lights-not-working-but-tail-lights-are/

Solutions:

https://www.wikihow.com/Fix-Car-Tail-Lights

7. Headlights Never Turn On- SHORT IN HEADLIGHT WIRING

Battery Loses Power When Headlights are On- SHORT IN HEADLIGHT WIRING

Headlights Don’t Light Up- HEADLIGHT WIRES ARE BROKEN, HEADLIGHT RELAY IS STUCK

Major Reasons:

https://www.aa1car.com/library/troubleshooting_headlights.htm Solutions:

1. https://www.lifewire.com/fix-non-working-headlights-4137021 2. https://www.lifewire.com/fix-non-working-headlights-4137021#:~: text=Most%20total%20headlight%20failures%20are,high%20bea m%20switch%20or%20relay.

8. High Beams Don’t Light Up- HEADLIGHT BULBS ARE BURNT OUT

High Beams Always On- HEADLIGHT SWITCH IS SHORTED ON HIGH BEAM CIRCUIT, DEFECTIVE HEADLIGHT DIMMER SWITCH,

High Beams Won’t Turn On- DEFECTIVE HEADLIGHT DIMMER SWITCH

Major Reasons:

1. https://www.carrchevrolet.com/service/information/reasons-why the-high-beams-arent-working-beaverton-or.htm

2. https://www.columbussubaru.com/service/information/reasons why-high-beams-work-but-low-beams-dont-columbus-oh.htm

Solutions:

1.https://www.lifewire.com/fix-non-working-headlights-4137021 2. https://www.gofar.co/blog/fixing-low-beam-headlight/

9. Turn Signals Don’t Blink or Light Up, Turn Signals Blink Rapidly, Turn Signal Dash Indicators Stay On — DEFECTIVE HEADLIGHT DIMMER SWITCH

Turn Signal Dashboard Light Speed has Changed- TURN SIGNAL BULB BROKEN, TURN SIGNAL BULB BURNT OUT

Headlights are Dim- INTERMITTENT HEADLIGHT WIRING CONNECTION ISSUE, FOGGED OR FADED HEADLIGHT LENS

Brake Lights Always On- SHORT IN BRAKE LIGHT WIRING

Major Reasons:

1. http://www.agcoauto.com/content/news/p2_articleid/243#:~:text= When%20the%20brake%20lights%20will,an%20unplugged%20h arness%20is%20likely.&text=The%20emergency%20flashers%20 often%20use,and%20sockets%20as%20the%20brakes.

2. https://auto.howstuffworks.com/auto-parts/brakes/brake-tests/h ow-to-test-brake-lights3.htm

Solutions:

1. https://auto.howstuffworks.com/auto-parts/brakes/brake-repair/b rake-light-wiring.htm

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Roy Aishwarjyo

A Computer Science and Engineering student. Interested in Computer Science, business analytics, project management, research and editing.