I think I screwed up my climate control

Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

LiverpoolFC

Member
Joined
Oct 29, 2017
Posts
23
Reaction score
2
Location
San Francisco Bay Area
Was trying to install aftermarket heated seats. Elements are already in the seats and I bought those fuse tap or piggybacks that plugs into the fuse box and has its own two plugs for original and new fuse.

I figured the better place to piggyback this into would be the climate control. There are two fuses on the 07 fuse box, both 10 amps. I followed this diagram: http://www.autofuseboxdiagram.com/349-ford-expedition-2007-passenger-compartment-fuse-box-diagram/ and used fuse 15.
But unbeknownst to me, plugging the piggyback in the fuse box the wrong way, apparently can cause issues. I think that's what I did... so now climate control doesn't work at all. I removed the piggyback and put back the fuse, no love. Checked, there's power going through the fuse. Replaced the fuse just to be on the safe side, still nothing. Swapped out the other climate control fuse (37) nothing... but that also has power going through it.

I'm wondering if there are any fuses or relays within the climate control unit under the radio that I could change or check. Or elsewhere in the engine fuse box. I'm stuck... no heat whatsoever doesn't make for a nice ride, anywhere.
 

Bedrck47

Full Access Members
Joined
Jul 4, 2014
Posts
5,641
Reaction score
652
Location
Elizebethtown, PA
Check the following fuses in the Battery Junction Box (under Hood)

F24, F30, F70 and F67

You can find the location in the owners manual.

If you don't have the owners manual you can download a copy at

owner.ford.com
 
OP
OP
L

LiverpoolFC

Member
Joined
Oct 29, 2017
Posts
23
Reaction score
2
Location
San Francisco Bay Area
I don't have a voltmeter, mine died some time ago. In case someone knows, in the BJB does power come in from the front or from the back? Front meaning closer to grille. Also, on the internal fuse box, is it the same? Front or back?
 

Bedrck47

Full Access Members
Joined
Jul 4, 2014
Posts
5,641
Reaction score
652
Location
Elizebethtown, PA
Use a test light

Doesn't matter Read each side of the fuse that way you know you have voltage in and voltage out
 
OP
OP
L

LiverpoolFC

Member
Joined
Oct 29, 2017
Posts
23
Reaction score
2
Location
San Francisco Bay Area
Mystery solved.
All fuses OK. So I bought a power indicator screwdriver style and went hunting. Surprisingly, it turned out that fuse 37 next to the passenger footwell doesn't make contact. I realized it when I was touching the exposed contact with the power indicator and nothing would happen, but if I pushed the fuse in, then power would flow. Fuse fits in quite tight though. I believe this may have been one of the fuses that were piggybacked from when the truck was being fitted for the police. I had pulled a few of those piggybacks, the flat style that goes in with the foot of the fuse. So I think I'm going to put in the piggyback back in, just to keep it tight.

I am however having quite the hard time trying to find a fuse that is only powered by ignition. I checked and all of the ones I want to use, 20A and above and all are powered.

This is what I'm using: 71kuq627zyL._SL1500_.jpg

When the dial is at the 0 position, the number light is off, but the little seat sign is lit blue. This is minimal, yes, but for 2 seats and in a car that will see most of the use during weekends, I fear issues. Or am I being paranoid?
 
Top