Please need help

[Holt50]

Brake lights aren't working. Flashers work turn signals work. Brake switch is good. I'm stumped. 97 yukon 5.7 4 door 4x4 340.000 miles. I need help please

 

[Magicmantx]

Brake lights aren't working. Flashers work turn signals work. Brake switch is good. I'm stumped. 97 yukon 5.7 4 door 4x4 340.000 miles. I need help please

I'm sure there is a brake pressure switch somewhere. maybe near the master cylinder

 

[Big Mama]

Check the wire under the steering wheel

 

[east302]

Does the center high mount brake light work?

If not, disconnect the brake switch connector and check for voltage on the orange wire (circuit 140) to a ground. If it works, probe the white wire (17), apply brakes and check for voltage. If no voltage there, suspect brake switch. If no voltage on the orange, look for an open in the wire back to the fuse panel.

If the center light does work, check for voltage at white wire (17) at the turn signal connector #266, cavity A1 with brakes applied. If you have 12V, I’d suspect the turn signal switch (turn signal, wiper, cruise stalk).







Connector C266










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[Holt50]

I'm sure there is a brake pressure switch somewhere. maybe near the master cylinder

Turned out to be my multiswitch