No headlights or turn signals but dash lights horn need to know if runs on relay brain fuse

Most headlight fuses are next to the battery, but some low beams are incorporated into the daytime running lights. Check the relay too for a signal from the dash switch and check for constant power side of relay also. One side is main power that gets relayed to the low beams and the other part of the relay is the side that gets the signal from the dash switch, one side is ground and the other is power, but the dash switch needs to be on headlights to diagnose.

The body control module seems to be the culprit here. Have it tested or replaced.

It has a headlight switch. Pull the knob out and it goes from off, to parking, to headlights. A (foot) press switch on the floor controls the low and high beam. The (low) wattage of the headlights back then and not needing to run small wiring through the turn signal switch, allowed them not to require a relay to run the headlights. You have two relays. Your flasher (turn signal) relay - under the dash. And your horn relay mounted on the firewall.

The tail lights run through the headlight switch, they also run through the combination switch(turn signals) that is a known issue for those trucks try messing with the hazard light switch and see if the start functioning, also if you have a tow package the lights have seconday fuses and relay in the electrical box under the hood

Look for a bad ground connection inside the headlight shell (or possibly elsewhere). The other thing that all of the items you mention that are working intermittently have in common is the ignition switch. With the switch 'on', check for battery voltage at the fuses for the headlight, turn signals, horn, etc. No voltage at the fuses likely means a bad ignition switch.

then the problem lies near the dash because dash,tail,and license plate lights work on same circuit

sounds like a headlight switch short let me know ok tellme whas up hey change the drl relay first dont buy onr go to the under hood fuse box look at the drl relay switch with same relay from diff spot let me know ok tell fixya bout me ok

I would check your headlight relay switch that is located in your steering colum

Below is a listing of which fuse corresponds with which circuit:

1 - 10 Amp - Transmission Controller, Gauges, Autostick
2 - 10 Amp - Right High Beam Headlight
3 - 10 Amp - Left High Beam Headlight
4 - 10 Amp - Radio, CD Player
5 - 10 Amp - Washer Motor
6 - 15 Amp - Power Outlet
7 - 20 Amp - Tail, License, Parking, Illumination Lights, Instrument Cluster
8 - 10 Amp - Airbag
9 - 10 Amp - Turn Signal Lights, Turn Signal/Hazard Indicator
10 - 15 Amp - Right Low Beam
11 - 20 Amp - High Beam Relay, High Beam Indicator, High Beam Switch
12 - 15 Amp - Left Low Beam Headlight
13 - 10 Amp - Fuel Pump Relay, Power Train Control Module
14 - 10 Amp - Cluster, Day/Night Mirror,Sunroof, Overhead Console, Garage Door Opener, Body Control Module
15 - 10 Amp - Daytime Running Light Module (Canada)
16 - 20 Amp - Fog Light Indicator
17 - 10 Amp - ABS Control, Back Up Lights, Daytime Running Lights, A/C Heater Control Cavity Fuse Circuits
18 - 20 Amp - Power Amplifier, Horn
19 - 15 Amp - Overhead Console, Garage Door Opener, Trunk, Overhead, Rear Reading, and Visor Vanity Lights, Trunk Release Solenoid, Power Mirrors, Power Door Locks, Body Control Module, Aspirator Motor
20 - 20 Amp - Brake Lights
21 - 10 Amp - Leak Detection Pump, Low Rad Relay, High Rad Relay, A/C Clutch Relay
22 - 10 Amp - Airbag
23 - 30 Amp - Blower Motor, ATC Power Module
24 - 20 Amp - Power Window Motors
25 - 20 Amp - Power Door Lock Motors, Power Seats

Fuse #8, #18 and #22.

Below is a listing of which fuse corresponds with which circuit:

1 - 10 Amp - Transmission Controller, Gauges, Autostick
2 - 10 Amp - Right High Beam Headlight
3 - 10 Amp - Left High Beam Headlight
4 - 10 Amp - Radio, CD Player
5 - 10 Amp - Washer Motor
6 - 15 Amp - Power Outlet
7 - 20 Amp - Tail, License, Parking, Illumination Lights, Instrument Cluster
8 - 10 Amp - Airbag
9 - 10 Amp - Turn Signal Lights, Turn Signal/Hazard Indicator
10 - 15 Amp - Right Low Beam
11 - 20 Amp - High Beam Relay, High Beam Indicator, High Beam Switch
12 - 15 Amp - Left Low Beam Headlight
13 - 10 Amp - Fuel Pump Relay, Power Train Control Module
14 - 10 Amp - Cluster, Day/Night Mirror,Sunroof, Overhead Console, Garage Door Opener, Body Control Module
15 - 10 Amp - Daytime Running Light Module (Canada)
16 - 20 Amp - Fog Light Indicator
17 - 10 Amp - ABS Control, Back Up Lights, Daytime Running Lights, A/C Heater Control Cavity Fuse Circuits
18 - 20 Amp - Power Amplifier, Horn
19 - 15 Amp - Overhead Console, Garage Door Opener, Trunk, Overhead, Rear Reading, and Visor Vanity Lights, Trunk Release Solenoid, Power Mirrors, Power Door Locks, Body Control Module, Aspirator Motor
20 - 20 Amp - Brake Lights
21 - 10 Amp - Leak Detection Pump, Low Rad Relay, High Rad Relay, A/C Clutch Relay
22 - 10 Amp - Airbag
23 - 30 Amp - Blower Motor, ATC Power Module
24 - 20 Amp - Power Window Motors
25 - 20 Amp - Power Door Lock Motors, Power Seats