4th Gen flasher relay

Does anyone know if the flasher relays in the Tacoma and 4Runner are interchangeable?

I swapped LED lamps into the rear blinkers on my 2008 4Runner (the fronts don't use the part that's listed in the manual), and now have "hyperflash" as expected. Since the flasher circuit back there uses contacts on the socket, I don't relish the idea of trying to srot out which wires in the harness to tie the load resistors to.

I do have a LED relay for a non DTRL Tacoma that I had meant to swap into my 2010 Taco, but it uses the front blinkers for DTRL (I think they started that in the 2010 model year) and has a different number of pins in the flasher relay. Now I'm wondering if I might be able to just swap that relay into the 4Runner and clear up the hyperflash issue.

 

No idea if the relay you have will work or not but maybe some of the info I provide here might answer your question.

I've got front LED blinkers in my Coastal bumper. I had the hyperflash issue and solved it using this relay from Diode Dynamics.



If you haven't found it yet, the relay, at least on my 2003 4Runner, is located above the interior fuse box. Might be different for different years.



Because I have a Limited, it originally came with DRLs. I've since disabled those with TechStream. However, because of the DRLs, the flasher relay was different. OEM on the left, the CF18 replacement on the right.



Doing some research, I found that there is a factory harness to resolve this issue.



The harness is plug and play with the factory wiring of course. Hopefully something in here answers your questions.

 

Mine is also a limited, but there's a viper alarm system installed that might be occupying the space where that adaptor harness would go. I'm also trying to cram in a splitter for the OBD plug to connect to the maestro unit so I can get gauge readings on the HU (after market JVC). Plus all the wires I'll be running for the off-road build. Guess I just need to pull the relay and see how many pins it has.

Does yours have the same bulbs in front and rear? Mine has round-based lamps in the front instead of the 7443s that are in the rears (and in the front/rear on my tacoma). I should have pulled a part number when I had them pulled last time but wasn't thinking past being surprised.

 

I have the 7443 wedge base bulbs in the rear.

 

What about the front? My manual says 7443 front and rear (same as the tacoma), but my 2008 limited v8 T4R has different bulbs in the front. They're a circular base with a stud that lock in with about a quarter turn.

 

That's what my front used to be, yes. Now, they are LED big rig running lights that I use for flashers in the bumper.

 

Aren't the front blinkers inside your headlight unit? My 2008 Limited V8 has dual headlights with a focused high-beam (might be a HID or Xenon), but I don't know if the headlights it has are the stock ones or if they were replaced by a previous owner.

Is your bumper so aggressive that you had to replace the headlight housings entirely?

The side markers in the front use the 194 wedges that the manual specifies, but the blinkers in front on mine aren't 7443 wedge lamps. I'm just trying to figure out how/why that is and what I actually need to get to upgrade them to LEDs.

best I can tell, the front turn signal lights aren't used as DRLs like they are on my tacoma, but again I've got no idea if that was the stock situation on the 2008 Limited or if it's been modified (the viper alarm system blinks the side markers on the front instead of the turn blinkers for the lock/unlock activation).

 

03/04 4th gen 4runners have the headlights you see on my truck. Maybe 05 too, not sure. But 06 to 09 all have the same headlights you have.

The blinkers were at the bottom of the bumper and also served as the DRLs with the stock bumper. They are on the outside of the fog light here. Headlight don't have signals in them tho.

 

Interesting.

I pulled the bulb over the weekend and it's a part 1156A in the later 4th gens. They're a pain to get to unless you have tiny hands, and on the driver's side it's necessary to loosen the battery in order to be able to get to the bulbs in the headlight unit. I didn't manage to get inerior panel pulled out to see which relay I have, but I did notice that the front signals are lit as DRLs (hadn't noticed earlier because I'm used to the location on the Tacoma where they're inside the headlights instead of outside) so I'm not as confident as I was last week that the 8-pin unit I have will work; won't know if I have room for that cable till I get the panels removed but I'm thinking about holding off on that until I get to doing the wiring for the lights, radios, and other gadgets

 

Theres a mod that u shave down something in the oem flasher. I did mine works cherry

 

This is really less than helpful without providing a link or further information. Also sounds like a hack mod that I wouldn't do anyhow. Just buy the right shit and do the mod correctly the first time.

 

Google search finds u help. What ever u wanna call it it fixes the issue. By all means fix it the way u want. That primered strip on ur hood look like a hack job lmao

 

Insult fail, good job.

 

I looked into that mod when I was doing LEDs on my tacoma. Seemed to be about 50x as much effort as just hooking up the load resistors, and really more than I was willing to do for just eliminating hyperflash.