Name that connector

[Hot Ducer]

1. Doing the LED changeover on my dash and noticed this electrical connector attached to a piece of plastic.

2003 1500 QuadCab 5.7 4x4

 

[Hot Ducer]

This one is under the dash by the pedals.

And this one is under the hood by the master cylinder.


2003 1500 QuadCab 5.7 4x4

 

[Core-Lokt]

In the second picture, if it's the connector on the back of the center bezel just below the vent on the right of the radio, that's for an air bag switch. You have a QC, so it didn't require one, give a car seat could've been attached to the back seat. It's still on the air bag circuit, so don't do anything with it. You could get the air bag switch and drill a hole to mount it as some did.

Picture three is (on an '05, anyway) called C219 (long one with through-bolt) and the small blue one is for a trailer brake controller harness. Most interior stuff is fed through C219, going up behind the cluster and the harness continuing across the top of the dash. Not sure, but I think the smaller connector above C219 is C220 and also feeds interior stuff-but that might be the designation of the blue connector. It'll be much the same on your truck, perhaps only different color wires or connector designation. It's tough to sort some of this out since you have to go back-and-forth between pages to continue following circuits.

IDK about the fourth picture connector or what circuits are in it.

 

[xb1230]

The 4th pic is the harness connection from the ECU to C219 under the dash. It links the central control unit with all of the interior stuff and the IPDM.

 

[Hot Ducer]

In the second picture, if it's the connector on the back of the center bezel just below the vent on the right of the radio, that's for an air bag switch. You have a QC, so it didn't require one, give a car seat could've been attached to the back seat. It's still on the air bag circuit, so don't do anything with it. You could get the air bag switch and drill a hole to mount it as some did.

Picture three is (on an '05, anyway) called C219 (long one with through-bolt) and the small blue one is for a trailer brake controller harness. Most interior stuff is fed through C219, going up behind the cluster and the harness continuing across the top of the dash. Not sure, but I think the smaller connector above C219 is C220 and also feeds interior stuff-but that might be the designation of the blue connector. It'll be much the same on your truck, perhaps only different color wires or connector designation. It's tough to sort some of this out since you have to go back-and-forth between pages to continue following circuits.

IDK about the fourth picture connector or what circuits are in it.

Thanks for the reply. In the third pic, im talking about the little green connector beside "the brain" and main harness. Maybe I don't understand what you are talking about. Trailer lighting should all be hooked up (although I haven't tested them since I've owned the vehicle). Under normal operating conditions, none of these are connected to anything which is why I was curious about their potential.

I figured the first was probably the airbag option, and will leave it alone.

2003 1500 QuadCab 5.7 4x4

 

[Hot Ducer]

2003 1500 QuadCab 5.7 4x4

 

[Core-Lokt]

I missed that one!

Looks like that's C309. Offhand, I can't find any harness that connects to it. You might ask jotin in his 3G Tech thread.

 

[Hot Ducer]

Thanks man.

2003 1500 QuadCab 5.7 4x4