Hello, electrical question, hooking up seat heater, fuse panel connection?

[HowdyHo]

Hello. I bought a Dorman 628-040 seat heater (628-040). I only want the lower back, I don’t want to warm the gluteus maximus. It comes w/a nice switch and wiring kit (w/fuse & relay). Which terminal should I hook it up for ignition-power?
thank you!

 

[Richard320]

Th easiest way to do it is to move the 12V power port/lighter socket fuse to the battery position. Then the other side will be run position and you can stick a skinny spade terminal in that slot. Or buy a piggyback fuse tap and pick a fuse. Check out New 5th-Gen 1500 Fuse / Relay / Circuit Breaker Diagrams & Documentation

 

[HowdyHo]

Thank you Richard320. That sent me to lots of reading. Would you consider the piggyback fuse and fuse 54B a good choice?
thank you

 

[Richard320]

That'll work

 

[HowdyHo]

UR RADICAL.

 

[HowdyHo]

Which one of these is better? The seat’s wiring already has a fuse.
thank you.

 

[HowdyHo]

Actually they look the same, like both take a fuse.

 

[HowdyHo]

Here is a photo of the harness w/the kit.

 

[HowdyHo]

It looks like it has it in the harness as is.

 

[HowdyHo]

Photo

 

[Richard320]

Is that the trigger feed or the load feed with the integrated fuse?

You'll need two fuses. One for the load, and one for the trigger/switch.

 

[HowdyHo]

I don’t know. I have never actually heard the term “trigger feed” before. I will look at the instructions. I might post some photos.


Hey, thank you again for the help Richard320!

 

[Richard320]

I don’t know. I have never actually heard the term “trigger feed” before. I will look at the instructions. I might post some photos.


Hey, thank you again for the help Richard320!

There's probably an official term, but I have always referred to the wire to the relay coil as the trigger, and the one that feeds the contacts is the load.

I think they may call it the signal.

 

[HowdyHo]

Hello! I was away for a bit. Thank you again Richard! Hey, as far as 54B, would you use the right or left side?

THANK YOU!!! (again)

 

[Richard320]

Hello! I was away for a bit. Thank you again Richard! Hey, as far as 54B, would you use the right or left side?

THANK YOU!!! (again)

Whatever the test light/voltmeter says. If you pull the two-legged fuse, you will see three terminals. One outer will be run, the other hot all the time. The center one goes to the 12V power port. So figure out which is which, plug in that piggyback tap, and plug the fuse in. Then go on with the rest.

 

[HowdyHo]

Hello again Richard. I did all the seat stuff today. The 54B is plugg and working. Seat heater is hot. I don’t like the electrical connection I made. I couldn’t get the tap-in fuse thingy to work nicely. I had to make it narrower. And after doing that the fuse would not slip in with the copper piece wrapped around one end. So I slimmed a male/spade connector and slid it into 54B. 54B lit up my test light on acc only.

is there a plug made to properly slip into 54B that will feel correct and snug?

Thank you!

 

[Richard320]

Hello again Richard. I did all the seat stuff today. The 54B is plugg and working. Seat heater is hot. I don’t like the electrical connection I made. I couldn’t get the tap-in fuse thingy to work nicely. I had to make it narrower. And after doing that the fuse would not slip in with the copper piece wrapped around one end. So I slimmed a male/spade connector and slid it into 54B. 54B lit up my test light on acc only.

is there a plug made to properly slip into 54B that will feel correct and snug?

Thank you!

I don't know.