The brake lights don't come on at all on my 93, the small lights fuse is good and the relay has no corrosion on it. The bulb sockets don't have corrosion either so I think it's gonna be the brake light switch right? Never changed one before so can someone help a guy out?

 

ive never changed one but it should have a locknut that you loosen and it should turn right out

there could be clearance issues youll know when you get down there but it shouldnt be as bad as the clutch

 

How exactly do you take it out?

 

above the brake pedal there is a nut on the back side of the switch (theres two, the one in hte front is stationary), i think its a 17. loosen the nut, remove the wire off of the back of the switch and spin the switch out...

 

Replaced switch still no brake lights.

 

1. Under-hood Fuse No. 25 (20A) protects the brake lights circuit, not the small lights fuse.

2. If you have a voltmeter or test light, unplug the 2P connector for the brake light switch. With the voltmeter's black lead touching chassis/body ground, touch the voltmeter's red lead to Wht/Yel wire; there should be approximately 12 volts. Wht/Yel wire is a wire with white colored insulation and a yellow stripe running through it.

3. If there is power at the Wht/Yel wire; with the brake light switch's 2P connector still disconnected, use a jumper wire between the 2 wire terminals of the 2P connector (Wht/Yel to the Grn/Wht wires). Does the brakes lights come on?

4. If the brake lights didn't come on in step #3 and there was power in step #2, you can also test for power at the left and right failure sensors and the bulb connectors.

In fact, you can test for power first at the bulb connectors, with a jumper wire connector to the brake light switch 2P connector (or just have someone press on the brake pedal with the 2P connector plugged back in).

5. If there is power at the bulb connector, then check the ground wire at ground location G701 in the rear.

 

There are no numbers for under hood fuses. But all the 20 amp fuses are ok

 

The fuse box cover label may have worn off on your car.

 

Thanks!!
When I turn the headlights on the bulbs do come on. They just don't go any brighter when I hit the brakes

 

Also cruise control will only come on sometimes

 

1. With the exception of the high mount brake light; the other rear bulbs serve as both taillight and brake light, and use dual filament bulbs.

There is a chance that the bulbs need replacement. One scenario: It may have been one side and the high mount was also out for awhile, and you only noticed no brake lights when the last one went out.

2. The cruise control issue may or may not be related.

 

The high mount brake light bulb is good

 

Does the high mount brake light work when you press on the brake pedal? If it does, then you can just focus on the bulbs and/or wiring in the rear of the car.

 

If the brake light switch didn't work would it still deactivate the cruise?