Chevrolet Repair Questions? Ask a Mechanic for Answers ASAP
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When this happens its actually the turn signal switch. The switch is what directs power to the brake lights believe it or not.
If the turnsignals work right then that is the test. Make sure the white wire going into the turn signal switch has power to ground when the brake pedal is pressed. If it does then the switch is bad. This is a very common problem.
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Lets start with this, do you have a 12v test lamp or a volt meter?
Ok, if you powered up the white wire from the brake switch and still have no brake lamps, then you most likely have a faulty turn signal switch assembly. The power from the brake switch runs through the turn signal switch and out to the brake lamps through the turn signal circuit. Since you have turn signals, you know the circuits from the switch to the rear tail lamps are good. If you do not have power at the white wire at the brake switch, then that switch is also faulty.
Let me know what you find.
Sorry for the delay. start by disconnecting the battery. Pop the steering column covers loose. The bottom one will come off completely, the upper you will have to tilt to gain access to the key tumbler release hole. This is a very small hole in the housing directly above the tumbler. turn the key to the start position and use a 90 degree pick to press the release button inside that hole. release the key to the run position and pull the ignition timber out.