Flasher Relay is Hyperflashing While Ignition is Off

Blind Driver

New Member
Original poster
Joined
Jan 12, 2022
Messages
4
Location
New Albany, IN
2004 TJ.

I installed a LED into the LR socket, but it didn't fit correctly. Removed it and install the old bulb.
The next morning I noticed I had no turn signals. Turn signal fuse was ok. While searching I found the #27 MFSW blown. I replaced it, but the fuse popped right away. But I noticed a fast clicking noise that sounded like the turn signal relay. Bought more fuses and a relay. The new relay doesn't pop the fuse, but it hyperflashes the turn signals. My front LEDs are flashing.
Then I realized I have no bake lights. I replaced the multifunction switch. No change.
It's hyperflashing with the ignition off. There shouldn't be any power going to the turn signals. I removed the ignition switch connector, but it still gets power.

Other related threads all got fixed with a new LED relay or by replacing the switch.

I'm wonder what I FUBAR'd
 
Are you using an EP27? If so switch it to an LM470, EP27 is not proper for any TJ. Then reevaluate afterwards once you know you have the right flasher in place.

Also, what bulbs do you have up front? If you have LEDs in the front turn signal sockets, that can cause trouble unless you do some rewiring to the circuits.