SOLVED: Turn Signal/Parking Light Weird Issue

Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

Machlen

Machlen

Newbie
Joined
May 9, 2024
Messages
23
Reaction score
9
Location
Minnesota
I recently installed 4 new parking/turn signal LED bulbs (1147 with built-in resistors). The driver's side functions perfectly normal. The passenger's side however does not. One of the 2 bulbs on the passenger side is bright all the time (as if it is stuck flashing "on). I tried flipping the LED bulb around in the socket, and that did fix this issue however now it hyper-flashes.


This seems weird to me... since in one orientation it is not lighting properly, and in the other orientation is IS lighting properly, but is hyper-flashing. Any ideas? The other bulb on the same side functions perfectly fine, and both bulbs on the driver's side also function perfectly.

SOLVED! Jump to solution.
 
Last edited:
Machlen

Machlen

Newbie
Joined
May 9, 2024
Messages
23
Reaction score
9
Location
Minnesota
UPDATE: I swapped 2 of the bulbs and have confirmed that the issue stays linked to a specific socket, it does not move with the bulb.
 
Awest623

Awest623

A juicy girl got me, again
Joined
Nov 23, 2017
Messages
800
Reaction score
554
Location
Washington State
Hyper-flashing is normal with LEDs. It's a feature in the flasher relay to tell you if a bulb is burnt out. It measures current draw, if the current draw is too low it'll hyper-flash (caused by a burnt out bulb or low current draw LEDs).

You have two options: 1, install a set of "load equalizer" resisters to increase the current draw or 2, replace your flasher relay with the LED style one that doesn't require a strong current to flash.
I'd recommend just swapping the relay. No point in drawing extra current if it's not needed.
One thing to note: if you end up swapping every turn signal bulb to LED, including the brake lights, you MAY need to install resistors regardless of if you have the LED relay or not. I had issues with the flashers triggering the dimming function on my dash and radio with all LEDs but no resistors.

Swap the LED back to were it operates normal (bright/dim).
 
Awest623

Awest623

A juicy girl got me, again
Joined
Nov 23, 2017
Messages
800
Reaction score
554
Location
Washington State
The "load equalizer" resistors and the LED flasher relay can be found at any auto-parts store.
 
Machlen

Machlen

Newbie
Joined
May 9, 2024
Messages
23
Reaction score
9
Location
Minnesota
Awest623 said:
Hyper-flashing is normal with LEDs. It's a feature in the flasher relay to tell you if a bulb is burnt out. It measures current draw, if the current draw is too low it'll hyper-flash (caused by a burnt out bulb or low current draw LEDs).

You have two options: 1, install a set of "load equalizer" resisters to increase the current draw or 2, replace your flasher relay with the LED style one that doesn't require a strong current to flash.
I'd recommend just swapping the relay. No point in drawing extra current if it's not needed.
One thing to note: if you end up swapping every turn signal bulb to LED, including the brake lights, you MAY need to install resistors regardless of if you have the LED relay or not. I had issues with the flashers triggering the dimming function on my dash and radio with all LEDs but no resistors.

Swap the LED back to were it operates normal (bright/dim).
Click to expand...
I’ll give the relay a try, thanks! These 1147 LEDs have the resistors built into a connect ballast so I’m surprised I’m having this issue. I’ve also used these exact LEDs on 3 or 4 other cars/trucks with 0 issues. These are them: https://a.co/d/90PasT0
 
fancyTBI

fancyTBI

*Sad TBI 350 noises*
Supporting Member
Joined
Oct 7, 2018
Messages
3,325
Reaction score
9,482
Location
Northern IL
I’d try a relay meant for LEDs. I bought Morimoto LEDs with resistors built in. Still put the LED flasher in.
 
Awest623

Awest623

A juicy girl got me, again
Joined
Nov 23, 2017
Messages
800
Reaction score
554
Location
Washington State
Machlen said:
I’ll give the relay a try, thanks! These 1147 LEDs have the resistors built into a connect ballast so I’m surprised I’m having this issue. I’ve also used these exact LEDs on 3 or 4 other cars/trucks with 0 issues. These are them: https://a.co/d/90PasT0
Click to expand...
Interesting. I've never seen ones with the resistors built in
 
Machlen

Machlen

Newbie
Joined
May 9, 2024
Messages
23
Reaction score
9
Location
Minnesota
Awest623 said:
Interesting. I've never seen ones with the resistors built in
Click to expand...
Yeah, I’ve had great luck with them in the past which is why I was surprised to have issues here. I’m going to swing by AutoZone tomorrow to snag the EP29 LED flasher relay and will report back. Would be a nice easy fix if that’s all it takes!
 
Cackalacky

Cackalacky

Newbie
Joined
Dec 12, 2023
Messages
9
Reaction score
9
Location
United States
I just recently installed the LED turn signal assembly from LMC Truck on my 1990 C1500 and I'm experiencing a similar problem where the passenger side flashes quickly with the headlights on, but flashes normal with them off. Would an LED flasher relay be a potential fix for this?
 
You must log in or register to reply here.

Similar threads

T
Turn signal problems
Replies
0
Views
149
TheJman
T
Tims 97 Chevy
No turn signals / parking brake light on gauge cluster
Replies
4
Views
607
Tims 97 Chevy
Tims 97 Chevy
93sierrak1500
Turn signals/parking lights
Replies
4
Views
622
GoToGuy
GoToGuy
G
Turn signal/Hazard Issue. Help greatly appreciated!
2
Replies
10
Views
2K
Nad_Yvalhosert
N
D
Radio flashes with turn signal
2
Replies
17
Views
1K
Pinger
Pinger

Latest posts

Staff online

Members online

... and 30 more.
Total: 3,104 (members: 80, guests: 3,024)

Forum statistics

Threads
66,699
Messages
1,433,208
Members
56,498
Latest member
airid74

Share this page

Top