Question about 2002 GMC Yukon XL

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E-brake light/chime is on while the e-brake is released....trying to find the switch/sensor to turn it off or for replacement...anyone know where it is?

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  • Jim Buck Nov 07, 2010

    where abouts on the foot pedal...hard to locate

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Hi,
This sounds like the brake pressure sensor switch, this is located on the Brake Pressure modulator which you will find bolt to the side frame under the vehicle on the left hand side.
Just disconnect the sensor at first and see if the buzzing stops, you will need to bypass it with a connector wire if the buzzing stops then replace the sensor switch.
Hope this helps
Jason

Posted on Nov 08, 2010

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  • Master
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The switch is located on the e brake foot pedal. check the switch with an ohm meter. replace if faulty. if good the chime module is at fault instead

Posted on Nov 07, 2010

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How do I disconnect the warning chime?


Key in ignition chime ?
Saturn L-Series ?????? L what ? L100 ,L200 , L300
Audible Warnings
The body control module (BCM) will provide an audible warning for various events relating to the vehicle. The functions that provide an audible warning are the key in ignition, the lights on, the occupant restraint (seat belt) and the park brake.
Key in the Ignition Audible Chime
The BCM will provide an audible chime if the key is left in the ignition in either OFF or the accessory position with the driver's door open. The chime rate for this is 150 chimes per minute. The key in the ignition chime has a higher priority than the lights on chime.
Lights on Audible Chime
The BCM will provide an audible chime if the park lights are on and the driver's door is open. In addition, 1 or 2 other conditions exist. The key is out of the ignition, or the key is in the ignition in the OFF position, and has not been turned. The BCM will chime at a rate of 200 chimes per minute until the conditions are removed.
Occupant Restraint Audible Chime
The BCM will provide an audible chime based on the class II message received from the SDM if the driver's seat belt is not buckled when the ignition is turned to run or crank. The chime rate for this feature is 50 chimes per minute.
Park Brake Audible Chime
The BCM will provide an audible chime for park brake when the park brake is applied and the vehicle speed is higher that 3 mph. The chime rate for this feature is 200 chimes per minute.

You can't disconnect anything . The problem has to be fixed .

The BCM will provide an audible chime for park brake when the park brake is applied and the vehicle speed is higher that 3 mph. The chime rate for this feature is 200 chimes per minute.
Audible Warnings (Chime)
Chime Rate Per Minute
Key in the Ignition Audible Chime
150
Lights on Audible Chime
200
Occupant (Seat Belt) Restraint Audible Chime
50
Park Brake Audible Chime
200
Content Theft Pre-Alarm Audible Chime
200
Telltale Chimes
The body control module (BCM) will provide 4 chimes for each telltale activation per ignition cycle, at a rate of 150 or 200 chimes per minute. The chimes are limited to 1 chime event per telltale for each ignition cycle. The power up telltale function will not activate the telltale chime function. If the telltale becomes active during a cycle then the chime will sound.
The following telltales will activate the chime function:
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• Brake Fluid Low
• Oil Pressure Low
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• Low Fuel Level
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• Volts Light (Generator)
• Supplemental Inflatable Restraint System (Air Bag)
• Trunk or Hatch Ajar

Having the vehicle checked for DTC'S - diagnostic trouble code's in the BCM would be the first step in the diagnostic procedure .
DTC B2965
When the ignition key is seated in the ignition switch, the key-in-ignition switch contacts the close, grounding circuit 80. The body control module (BCM) monitors the state of the key-in-ignition switch, the state of the ignition switch (OFF, ACC, or RUN) and the driver's door to control the key-in-ignition chime.

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Should be an easy fix.

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My break light lights up, and then chimes. Does


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1 Answer

Brake light is on and chime is on


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However, you were correct to add fluid to the correct level.
Just to be clear, you are talking about the red brake indicator light on the dash and is not accompanied by the amber ABS brake light.
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Start there and let me know.
Regards,

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