the fuse labeled as horn controls the cigarrette lighter
check the vacume lines that go to the front dif
You may need to replace the 4x4 engager switch or replace the fuse in your fuse box.
is it a 4x4?? yes
Need to put truck in 4x4 with engine off, transmission in park key onTake a test light and check the wires on the Actuator, and see if they are hot.If they are hot Then replace the 4x4 Actuator in the front housing.If they are not, Then check the 4x4 fuse
The # 5 fuse ( 15 amp ) is for the 4X4 module according to the owner's manual Good luck - (Helpfull)
The 1993 Chevrolet Blazer headlight fuses can be found in the fuse box. The exact location of the fuses will be listed on the inside cover of the fuse box.
Fuse 12, 15 amp located in the fuse block under the instrument panel. This fuse also controls all the instrument indicator lights, so if those are working but not the 4x4 light, then you have trouble in the 4x4 system or the anti-lock brakes as those are tied into the 4x4 system too.
You need to check fuse 17 and 18 under the hood. One of them is bad.
The Owners Manual sez to be in Neutral when changing from one mode to the other.
Put it on jack stand. If the four wheel does not engage pull the cord on it and see if you can engage it manualy. If that works the actuater is bad and not pulling the cord.
If the button is not working, might be a vacuum line problem. Vacuum lines engage the 4x4, might need to check the lines to the 4x4 transfer case.