LED turn signals help please

[gb043075]

Replaced front, rear and interior bulbs with LEDs. They work fine with exception of blinkers. Installed the grote flasher tonight and no dice.

Turn signal indicators on dash both light up and stay solid, when I turn signal on indicator flashes once then back to solid lit. Nothing happens on actual bulb.

Tested fuses in cab (did not mess with under hood fuse box). 10A left and right turn barely light up my test light. Left and right trailer 10A no light (maybe this makes sense if nothing is connected to trailer plug?). Checked all 4 of these fuses and they're good.

Also noted that 15A veh stop fuse did not light.

Suggestions? I'm an electrical idiot.

[gb043075]

Update: checked fuses under hood. All fuses good but no juice at btsi 10A, crank 10A, hi hdlp lt and rt 10A

[heymccall]

What Grote flasher (part #)?

What happens with the OEM flasher installed (with the LEDs)?
Do the stop and park LEDs work (regardless of which flasher is installed)?

[gb043075]

Originally Posted by heymccall

What Grote flasher (part #)?

What happens with the OEM flasher installed (with the LEDs)?
Do the stop and park LEDs work (regardless of which flasher is installed)?

Grote #44140
OEM flasher produces same result.
Stop and parking lights (and drl) all work. Meaning they flash / light up when I lock or unlock or turn on parking lights.

I bought the grote after reading that was the led fast blinker problem.

Thanks!

[PrivatePilot]

Where did you get the LED replacements? I've seen plenty of low-quality junk coming out of China that was problematic - I know, because I've bought some of it.

I'd try removing all the bulbs and replacing them one at a time with the hazard lights on - see what works, and what one causes everything to *stop* working. My guess is that you have one that is shorted internally or something.

[gb043075]

Originally Posted by PrivatePilot

Where did you get the LED replacements? I've seen plenty of low-quality junk coming out of China that was problematic - I know, because I've bought some of it.

I'd try removing all the bulbs and replacing them one at a time with the hazard lights on - see what works, and what one causes everything to *stop* working. My guess is that you have one that is shorted internally or something.

Bulbs are from Retro Solutions and SuperBrightLED's, both of which I've heard good things about. Thanks for the suggestion, I will give that a shot tonight.

[kcrebel]

subscribed...

[heymccall]

There were a few threads on here where the LM487 (the Tridon equivalent of the Grote) did not solve the flasher issues, and dummy loads, or resistors, had to be added. Search LM487.

[gb043075]

Originally Posted by heymccall

There were a few threads on here where the LM487 (the Tridon equivalent of the Grote) did not solve the flasher issues, and dummy loads, or resistors, had to be added. Search LM487.

Lovely. This is beginning to look like a punt situation...

[BadaBing]

i keep reading the resistors are the way to go to fix the quick flashing problem