Turn signal flasher relay

[shucker1]

I would be checking grounds on my truck connector first.

 

[shucker1]

Neighbors truck connected it works.

Rules out the trailer.

Tail lights work but turn and stop don't.

Tail and stop are the same bulb and need more current to run.

A funky ground will drive you nuts...

 

[Ritchie in GA]

I'm willing to buy a new relay switch as a process of elimination. Can anyone advise where it is under dash? Am I blind? I can hear it, panel off, can't see it or feel it when reaching in.

 

[jmr061]

There is no relay flasher.

 

[peterk9]

Folks, little help? Trying to find the flasher relay. Under dash panel off, I can hear it, I can't find it !! I need to replace it. Still works but not when my boat trailer is hooked up. Please and thank you !

Do you still have the '07 Sport Trac? If not, please update your profile or add the 2012 to a signature so members will know what you have. Thank you.
Jason is correct. There is no physical relay for the signal lights. Electronic Flasher for LED Upgrade

Peter

 

[Ritchie in GA]

I've updated profile to Explorer. So the flasher switch "sound" is actually coming from the
BCM?

 

[blwnsmoke]

Have you tried the 7pin instead of 4 pin to see if it works properly? If not, I'd grab a 4 to 7 pin adapter and see if it works, if so, it is a wiring issue on the 4pin on the vehicle.

 

[Ritchie in GA]

Great suggestion! I will try that next. Thank you

 

[blwnsmoke]

Great suggestion! I will try that next. Thank you

Welcome.. may not be it but I do know those 4 pins are very unreliable compared to the 7 pin. I always convert my trailers to 7 pin.

 

[thefranchise713]

Fuse/Relay 70, the fuse box under the hood:
"Trailer tow left-hand and right-hand stop and direction indicator lamps."

Not sure if that's the trick you're looking for or not. But the others are right--there really is no "flasher relay," as one might expect. The BCM handles that.

That's from my 2017--your 2012 may vary.

 

[Ritchie in GA]

Happy 4th. I'm striking out. Fuse/Relay is good under hood. I tried 7 pin connector with a built in test light as part of the connector. Tail light test light comes on, brake lights/turn signal test light does not. Which leads me to believe it's the BCM. All in favor? Not sure there's anything else to check.

 

[jmr061]

Just double checking...you checked fuse 63 in the BJB (under the hood)

 

[thefranchise713]

It's rare--exceedingly that a BCM is bad.

If after Jason's check that doesn't work, I'd pull codes--sometimes the BCM will shut down an output as a circuit protection strategy if it sees something that it doesn't like.

 

[peterk9]

bump

 

[peterk9]

bump