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Re: the brake lights wont work
I hope I am not too late. I am a certified mechanic and also have a 99 mazda 626 with the same issues. It was driving me nuts and I had no electrical schematic to help me see what was on the brake light circuit. I found the solution. Do this if you have checked everything else.
1-Check all bulbs. Replace bad ones 2-Reach under the dashboard on top of the brake pedal assembly you will see the brake light switch. Grab the switch and turn it counterclockwise, it will come out. No need to remove the wire plug from it. If the switch is good at this point your brake lights should be on. If the switch tests good the your last resort is the turn signal switch called multy function switch. Replace it and your problems will be solved. I went to a local junk yard with a philips screwdriver and pulled one out of a vehicle. The cost was $5.37. Good luck let me know
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While if it was working before then there is little problems which you have to check steep by steep !
1. go check your car light bulbs & light grips on back of your car .
If Bulbs look good then.
2. check fuse in fuse box which is on driver side & on fuse box cover its written on stop lamp & you can check other fuse as well just to confirm if there is another shorting.
If all fuse are good then check .
3.Check brake pedal upper side there is one switch which have two wire out check there wire or grip if its have losing then it wont work.
if its look proper attached then .
4.This switch have threads which can be adjustable before taking any step to adjust just check when you are pressing a brake pedal there is a plastic needle working inside its come out or not ,If its come out then your brake light switch gone wrong or if its not coming then plastic needle is jammed inside & your car brake light not working.
Just to confirm if your brake switch is in good condition or in bad condition .
Okay this is final steep you have to check or confirm it switch problem .....
5. There is two wire on back of brake pedal switch or in a grip coming out , So if its in grip or just on clips, then take a wire piece & bypass or joint both wire which is coming from wire loom sid to brake pedal & check your brake lamps if its blink or on than 100% you car brake pedal switch is not working or inside its short , So replace your car brake pedal switch or if still not blink or On then there is some issue in your car wiring & you better check you car to you auto electrician......
Hopefully you will save your amount not to visit you auto electrician.
best of luck....
check all your fuses if fuses are good check brake lite bulbs see if they are blown. if bulbs are good get a test lite see if you have power to the bulb sockets have friend apply brake pedal you test power going into bulb socket if you have no power brake lite switch behind brake pedal could be burnt out. p.s dont forget to check all fese relays when checking your fuses.
You have to check the brake light switch which should be around the brake pedal on the upperside.
Ones located rremove the wires tht go to the switch and jump them by using a piece of wire, thn check if the brake lights come 'on'. If they do , thn its the switch tht may need replacing or even sometimes adjusting inorder to operate.
Hope this helps.