Brake lights will not go out key on 2002 me/be 430

Check the brake light switch atop the brake pedal arm . probably not the fuse . Go to http://www.bbbind.com/free_tsb.html free wiring diagrams . Enter your vehicle info . year ,make , model ,engine size . Then under system click on lighting , then under subsystem click stop lamps . Check wire color into switch an check for B+ voltage . Then press the brake pedal an check for B+ voltage on the out put wire . No voltage coming out with voltage going in .the switch is bad .

its a brake fuse not the tail park lights.
got trailer wiring hacks on car/ (look)

there are 2 lamps, lamps short.
put in one new lamp, does it work?
y/n
if no , and the new brake lamp switch as 12v on both sides key on and brake pedal reset then the wires are open.
if the voltage reads way low not 12v this line is grounding out.

this is easy to do with and DMM for say $20 , sold at walfart too.

suspect a bad brake light switch,on the brake pedal itself.the key need not be on when checking the brake light switch.but requires 2 people.one to insure the brake lights come on,one to push the brake. theres a switch on the brake pedal itself. look above the brake pedal pad that you push to apply the brakes. you will see a plunger that moves in and out,just to supply the current to the brakelights.if the plungers out of sync,it will not work. or it may only be stuck.or simply bad,if it moves and brake lights do not work. if the plunger works on visual inspection,and is plugged up,the switch is suspect to be bad. thank you,for choosing fixya.com!! SIMPLE SOLUTION,CHECK THE BRAKE LIGHT FUSE. IT MAY ONLY BE BLOWN. UNDER THE DASH ON DRIVERS SIDE CLOSEST TO YOUR LEFT FOOT WHEN APPLYING BRAKES. WITH FLASHLIGHT,CHECK FOR BLOWN BRAKE LIGHT FUSE. if this fails,check for blown brakelight bulbs. unlikely that both brake light bulbs blown at once! but not unusall. thank you for choosing fixya.com!!

WITH A GOOD FUSE TESTER, TEST ALL THE FUSES FUSEBOX UNDER THE HOOD & INSIDE THE VEHICLE. IF THE FUSES ARE ALL GOOD WITH THE TESTER YOU MUST HAVE A BAD BRAKE LIGHT SWITCH OR A BAD TURN SIGNAL SWITCH. THE BRAKE LIGHT CIRCUIT GOES UP THROUGH THE TURN SIGNAL SWITCH & THEN TO THE BRAKE LIGHTS. FIRST OF ALL IS THE BRAKE LIGHT SWITCH GOOD ? THE ORANGE WIRE FEEDS THE BRAKE LIGHT SWITCH, THE WHITE WIRE PUTS POWER TO THE TURN SIGNAL SWITCH, SO THE LIGHTS CAN BE USED AS TURN LIGHTS OR BRAKE LIGHTS. , PUT A TESTER IN THE WHITE WIRE & PRESS ON THE BRAKE PEDAL. IF THE TEST LIGHT LIGHTS UP, BRAKE LIGHT SWITCH IS GOOD, BY THE WAY THE BRAKE LIGHT FUSE MAY BE LABELED" STOP", THE FUSE LABELED" BRAKE" IS FOR THE ABS SYSTEM. TO CHECK THE TURN SIGNAL SWITCH FOR BRAKE LIGHTS, REMOVE THE PLASTIC COVER FROM UNDER THE STEERING WHEEL, PRESS ON THE BRAKE PEDAL, PUT THE TESTER IN THE SMALL YELLOW WIRE, THEN THE SMALL GREEN WIRE. IF THERE IS NO POWER IN EITHER WIRE, THE TURN SIGNAL SWITCH IS BAD.

yes they are. if your hazard flasher is bad and you happen to have the hazard switch turned on your brake lights wont work
put hazard switch in one position and check brake lights
then put in other position and check them
if they work with the hazard switch in one position leave switch olone and check fuses and put a new flasher for hazard in

yes there is. Above the brake pedal there is a switch tat turns the lights on when you press the pedal. It is tough to replace due to the lack o room to put your hands. but is an inexpensive part.

There is a shift interlock mechanism that only alows the key to come out in park. It is the same mechanism that will not let you put it into gear unless you put your foot on the brake. You cannot safely bypass it.

Check the connection at the brake light switch for power comming out to the barke lights,try feeding power to the brake lights manualy using a jumper wire from your fuse box or battery,unplug the wire from the switch and put power to the harness if everything is OK the brake lights will work,then you need a new switch.

CHECK THE BRAKE LIGHT SWITCH FUSE AND BRAKE SHIFT INTERLOCK SOLENOID FUSE.IF FUSES ARE GOOD.REPLACE BRAKE LIGHT SWITCH FIRST.BECAUSE BOTH COULD BE PROBLEM.BUT MOST OF THE TIME ITS THE BRAKE LIGHT SWITCH.THAT GOES BAD.

Check the Brake light Fuse the key cannot turn if the brakelight fuse is blown because the safety switch is parts of the brake light circuit. also check the brake light switch if the fuse is good and the brake lights do not work.