Headlights never turn off when running. p.brake will not turn off

Check the ground cable from lights to chassis.

Normally this condition is the result of a poor body ground connection. Testing for this can be deceiving. At the static(nothing on) condition, testing can show a good ground. However when a circuit is excited, it has a determined resistance and a set current flow. If the ground connection to this or a branch circuit is loose, corroded, or broken wire. This will allow just enough connection to show as being good, but not good enough to complete the circuit with the required amount of connection when energized.

headlight switch is bad, change the headlight switch itsellf will short out, therefore blowing your fuse. turn signals and break lights are on a different relay, therefore they will still work

Hi,
I'll make it brief( something wrong w/ my ISP ).
You got problem in the light switch assembly, the plastic cam is already melted and failed to push the metal contactors to the contact points. Replace is necessary.
The brake and headlight problem, better check the shorted wire in the relay and fuse box in the engine area, there is a shorted wire that stealing the power of the headlight relay, thus it turns off when you step on brakes.

Recommendation: Better have a tech to check on that, a total check up of the lighting and brake light harness is required, the main harness under your steering must be check thoroughly.

Hope that helps!

no they can't you can try depressing the parking brake just one click so the brake light comes on this usally will over ride the daytime running lights and will not ingage the brake seeing it is only one click. good luck

Your cruise will not work if the brake lights are on just like the cruise disengages when you hit the brakes.As far as the brake lights with the headlights,sounds like there is something crossed.If you hold your breaklights on with your headlights off is there a glow of the headlights or your running lights.If your rear bulbs are the round push in and turn type make sure they are installes correctly.You may have one where the contact on the bottom of the bulb is causing a jump of power from your running/parking light over to the brake light side.Well hope this helps and good luck.

Check that the correct globes are fitted to the main brake lights.

give the emergency brake a good slap and make sure it's released fully if you put the e brake down a click or two, it will turn off the automatic headlight on day feature . good luck

First thing i would do is chg. the break light switch, and make sure to chk. all grounds around tailights, sometimes if there is a ground problem it will travel back thru the hot wire to get a ground, witch in turn makes everything go wackey.