L would also check switch for brakes. This you should find
at or near top of peddle (brake ) behind it.Could be broken or
connection,take a lot of wear.
LUCK
Check connection and ground. Since the brake light pin on your wiring harness has power, check that the wiring harness ground pin has zero ohms to ground. If the harness is good and the hitch light works on a battery, then there is either a bad connection from the pin to the hitch light or from hitch light to ground.
SOURCE: brake light on 2001 chevy blazer LT 2wd
When my blazer did this they had to replace part of the wiring harness in the steering wheel. It took forever for them to get the parts because we live in nowhereville, but once it was in it works again and no problems. I had to take it to the actual chevy dealer because none of the other places had a clue. good luck.
SOURCE: Bleeding Brakes on a 2001 Silverado Z71
Tony,
When bleeding brakes after the system has been opened for service (you didn't say if you were doing any work on the master cylinder) you should start with the farthest wheel away from the master cylinder, which is the righ rear. Fill the master cylinder, then have an assitant "pump up" the brake pedal. Tell them to hold it down firmly, then open the bleeder on the wheel cylinder(s). Do not release the brake pedal until you have closed the bleeder valve again. You'll know when the air is out - there won't be any more bubbles. Since this vehicle is 2001, this would be a great opportunity to flush the system. Just make sure you have enough brake fluid (DOT 3 or 4, depending on your vehicle). Good luck!
SOURCE: 2003 Toyota Camry - Both Brake lights not working
Lok in the trunk on the left side, behind the carpet for a small plastic box with a bunch of wires going to it. Look to see if there is brake light powe coming in with the pedal depressed. If so, and no power is coming out, you need to order and replace the "taillamp failure sensor".
SOURCE: 2002 Chevy silverado 2500HD No power steering or brakes
The shaft in your power steering pump has broken. Your brakes work off of a system known as Hydra-Boost. If this shaft is broken then your steering and brakes are lost. I contacted GM after I had my power steering pump replaced and they sent me a check for the cost of my repairs. My truck was not under warranty or recalled but earlier models (2500HD) had been recalled for the power steering pump shaft. The pump was the same part number for my 2002 2500HD as the recalled years. Good Luck!
SOURCE: No trailer right turn signal or brake light
Hey Boon,
The pinouts for a 7-way plug are as follows:
Seven wire Trailer plugs:
Horse, stock or utility trailers:
White = Ground - 1
Blue = Electric Brakes - 2
Brown = Tail and clearance lights - 3
Black = Battery, aux power - 4
Yellow = Left turn/Brake - 5
Green = Right turn Brake - 6
Orange or Purple (not both) = Auxilliary or Reverse - 7
Recreational Vehicle:
White = Ground - 1
Blue = Electric Brakes - 2
Green = Tail and clearance lights - 3
Black = Battery, aux power - 4
Red = Left turn/Brake - 5
Brown = Right turn Brake - 6
Yellow = Auxilliary or Reverse - 7
In both cases 4 is battery and 7 is reverse, aux or not used.
Double check your wiring using these lists as a reference.
Click here for my post on Trailer wiring
This should get us closer to the answer.
Best regards,
Mike
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