grss429

I recently had the water leaking issue in door sils, been trying to figure that out..

Yesterday morning i startes truck to warm up, it was 45iah and the abs/brake light came on.. so i replaced fuse 14 drove it to work everything was fine, drove it home everything was good..

Went to start it this morning to warm it up (about 50ish) and i drove a few feet and the fuse poped agian...

Ive searched a little i cant find much on it, i know it controls a few different things

Martian

Check the seal around / reseal / replace your third brake light

Mod (Ret.)

Fuse 14 is used for the following circuits, they would also need to be checked for a potential short:

Back-up lamp and Daytime Running Lamps (DRL) relay coil, A/C pressure switch, Redundant speed control switch, Heated PCV (5.4L), Trailer tow back-up lamps relay coil, ABS, Reverse park aid, EC mirror, Navigation radio (reverse input)

grss429

I know about the light leak, i will be re sealing tonight but i dont think its from there

grss429

Thanks ill see if i cant do aomw diag, but it seems to only do it on cold mornings..

Mod (Ret.)

Are you running the defrost in the morning? If so, the defrost operates the A/C compressor to assist in removing moisture from the air directed towards the windshield when in defrost mode, and fuse 14 is also protecting the A/C pressure switch.

lewissa81

Since you know you have a water leak, pull the fuse block off and check the back for signs of water.

grss429

I'll do that as well, it didn't look like the water even got close to it though..


So i was driving home yesterday, and it randomly popped again no defrost or anything just a cold start

im going to also try to find the PCV heater and unplug it

Mod (Ret.)

After reading your other post that describes your cruise kicking off when you use your turn signals, I'm going to say that both of these are related. The cruise will deactivate when it detects voltage in the brake circuit. Somehow, you have a short from the turn signal circuit and brake light circuit. These two tie to the same bulb filiment in the back taillamps (brake light and turn signal lamps are the same filiment in the bulb at the rear tail lamps). Remove each taillamp assembly, remove the bulbs, check the sockets, then replace the bulbs with new ones for good measure.

grss429

Thats another guy, not me