JKU turn signal gremlins...

[jfb118]

I just had an issue turn up with my left turn signal. All other lights are working correctly.

When I start the Jeep, all is normal, all the dash lights come on an cycle off as normal.

When I use the LEFT turn signal, it works correctly for about 10 to 20 seconds, then I get a message in the info area that the left turn signal bulb is out and the flashing rate doubles.

The right turn signal is fine.

The message and issue stays until the Jeep is shut off.

When I start the jeep again, the cycle repeats, no issue until the left turn signal has been on for 10 -20 seconds.

The left turn signal bulb is fine, since it works fine on startup, and for the first 20 seconds. I did replace t hat bulb with the spec 3157 and no change, still the same problem.

ANY suggestions are welcome...

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[kah.mun.rah]

Did you check both the front and rear turn signal bulbs?

 

[jfb118]

Did you check both the front and rear turn signal bulbs?

Yes, ALL other bulbs are working correctly...

 

[alphawolff]

Replace all the bulbs on that side anyway. It uses voltage drop to determine if a bulb is out, so one that's slightly out of spec will cause the issue. Don't forget the peanut bulb in the fender

 

[jfb118]

Replace all the bulbs on that side anyway. It uses voltage drop to determine if a bulb is out, so one that's slightly out of spec will cause the issue. Don't forget the peanut bulb in the fender

Thanks for the suggestion, I will order another pack of 3157s and replace the other two bulbs.... I'll let you know if that does it

 

[jludave]

ANY suggestions are welcome...

Try posting in a JKU specific forum. This is for the 2018 and up Wrangler JL/JLU.

 

[Terrymo]

Thanks for the suggestion, I will order another pack of 3157s and replace the other two bulbs.... I'll let you know if that does it

Swap the bulbs one side for the other and see if the hyper flash follows the bulb?

 

[Blckdog]

Just went through this with mine after switching to high rise flares. Exact same issue. The remedy was clear everything to factory setting a reprogram from the start factor fresh with the JSCAN.
This was th only way to get everything worked out.
Mine is a 2023 but it probably works for a JK too.

Good luck.

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