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Re: cant find the main fuse box
Easiest way to find fuse box is to follow the (+) wire from the battery. If more than one wire, follow each. One will lead you there! Or, drive over to a local dealer... they will be happy to show you where it is!
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first check the CHMSL/DMR fuse. If that is good look for the brake lamp relay. Remove it. With a test light hooked to ground probe the pins in the fuseblock, One should have power all the time. One should have power with the brake pedal depressed. Connect the test light to power. The other two pins should turn on the test light.
If there is power all the time but there is no power on any pin with the brake pedal depressed than you either have a bad brake switch, a bad BCM (which actually supplies power to the third brake light), or bad wiring.
If you have no power at all to anything either the cable ends need. Cleaned or you blew a main fuse under the hood,, if memory serves me right i think its a 125 amp be on the front outside of the fuse box under the hood if you have partial power to some stuff could be one of the master fuses in fuse box under the hood,,, check all the fuses big and small under hood and in the cab under the steering wheel behind panel hop this helps
All fuses get their power from the battery. The under dash fuse box is no exception.
In the under-HOOD fuse and relay box, there will be a 'Master' fuse that sends power to the other components. This will be a 50 or 75 Amp fuse. Check every fuse you see in that under-HOOD box, and one of the mains is probably out.
You'll need to find out why it blew, because there is definitely a reason when the big ones blow. It's a major short circuit.
Did you replace a starter, or alternator, or battery before the problem bagan?
The wiring diagram is showing two 60amp maxi fuses coming from the battery post in or under the fuse box. The box is called the underhood accessory wiring junction block so it may only hold 2 or 3 fuses. The two maxi-fuses power most of whats in the main fuse box.
Headlights are not powered by a fuse. It uses a mini circuit breaker and or a main fuse located in the main fuse/relay center under hood. Have the mini circuit breaker checked. The fuses/relays are marked in the main box.