Brake warning light on dash and warning chime turn on, brakes seem fine, sometimes turns off, sometimes stays on.

Check the warning sensor adjustment as the eb system may be worn enough to set it off if the adjustment is too close.

1. Disconnect the Brake Pressure Differential Switch located on the Combination Valve Assembly. It will have a Purple and a Black wire.

2. Turn the key on, engine off. If the problem is no longer present, replace the Combination Valve Assembly.

ABS LIGHT AND MODULE TROUBLESHOOTING:

Anti lock brake system light comes up when there is issue with car brake systems. It can be low brake fluid or faulty ABS fuse or its issue with brake system or assembly. Your vehicles brake system needs inspection.

To troubleshoot these issues, I suggest you to refer the help links provided below. There are direct links with accurate solution, for these specific issues.

Click the link below and follow the procedure: ------

All types of ABS LIGHT / brake problems and repairs

http://howtobyme.blogspot.com/2011/11/abs-and-service-light-comes-on.html

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ABS light stays on but brakes work fine?

http://howtobyme.blogspot.com/2011/11/abs-light-stays-on-but-brakes-work-fine.html

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VCS and ABS lights go on and off intermittently on Lexus?

http://howtobyme.blogspot.com/2011/11/vcs-and-abs-lights-go-on-and-off.html

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The ABS and Traction Control Lights stays ON dash of car?

http://schematicsdiagram.blogspot.com/2011/06/abs-and-traction-control-lights-stays.html

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ABS & Brake lights warning indicator steady on dash and speedometer not working for Dodge Ram?

http://howtobyme.blogspot.com/2011/11/abs-brake-lights-warning-indicator.html

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Battery Light and ABS Light on Dash

http://whoisbyme.blogspot.in/2012/07/battery-light-and-abs-light-on-dash.html

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Sometimes ABS light comes on while Driving?

http://howtobyme.blogspot.com/2011/12/sometimes-abs-light-comes-on-while.html

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How Anti-Lock Brakes Work?

http://technoanswers.blogspot.com/2011/11/how-anti-lock-brakes-work.html

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Brake System Troubleshooting?

http://technoanswers.blogspot.com/2011/11/brake-system-troubleshooting.html

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Anti-lock brake light stays on all the time?

http://technoanswers.blogspot.com/2012/01/anti-lock-brake-light-stays-on-all-time.html

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ABS light comes on and Car makes Grinding noise?

http://repairhelpcenter.blogspot.com/2012/01/abs-light-comes-on-and-car-makes.html

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ABS trouble codes for all models?

http://repairhelpcenter.blogspot.com/2011/11/abs-trouble-codes-for-all-1994-00-acura.html
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2008 Toyota Highlander: ABS warning light Blinking and OBD Error codes Coming?

http://technoanswers.blogspot.in/2012/05/2008-toyota-highlander-abs-warning.html

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2003 Lexus ES: VSC, TRAC OFF, ABS lights ON?

http://technoanswers.blogspot.in/2012/04/2003-lexus-es-vsc-trac-off-abs-lights.html

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2008 Toyota Highlander Hybrid: Warning Lights Abs, Vsc & Brake Are On?

http://technoanswers.blogspot.in/2012/04/2008-toyota-highlander-hybrid-warning.html

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ABS & Brake warning lights remains steady on dash?

http://schematicsdiagram.blogspot.com/2011/12/abs-brake-warning-lights-remains-steady.html

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Can I drive the car without ABS fuse connected?

http://schematicsdiagram.blogspot.in/2012/02/can-i-drive-car-without-abs-fuse.html

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Where is ABS/TCS module located on 2005 Cadillac Deville

http://schematicsdiagram.blogspot.com/2011/12/where-is-abstcs-module-located-on-2005.html

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ABS motor keeps running?

http://schematicsdiagram.blogspot.com/2012/01/abs-motor-keeps-running.html

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When the car stops, abs pump turns ON?

http://howtobyme.blogspot.com/2011/12/when-car-stopsabs-pump-turns-on.html

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Replacing ABS unit on Buick Century?

http://technoanswers.blogspot.in/2012/02/replacing-abs-unit-on-buick-century.html

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2008 Toyota Tacoma: ABS causes Brake pedal fade?

http://technoanswers.blogspot.in/2012/04/2008-toyota-tacoma-abs-causes-brake.html

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Toyota Camry: Premature ABS Actuation?

http://technoanswers.blogspot.in/2012/04/toyota-camry-premature-abs-actuation.html

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How to replace ABS Modulator Control Unit on Acura Integra?

http://repairhelpcenter.blogspot.in/2011/11/how-to-replace-abs-modulator-control.html

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How to replace ABS Pump Assembly on Acura Integra?

http://repairhelpcenter.blogspot.in/2011/11/how-to-replace-abs-pump-assembly-on.html

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How to remove ABS Accumulator on Acura Integra?

http://repairhelpcenter.blogspot.in/2011/11/how-to-remove-abs-accumulator-on-acura.html

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How to remove ABS Control Unit on Acura Integra?

http://repairhelpcenter.blogspot.in/2011/11/how-to-remove-abs-control-unit-on-acura.html

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These details will help.

Thanks.

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:
• Low Washer Fluid
• Change Oil Soon Indicator
• Brake Fluid Low
• Oil Pressure Low
• Coolant Temperature Hot
• Low Coolant Level
• Low Fuel Level
• Antilock Brake System
• 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.

The Parking brake light can be set on if the cable to the brake has become loose, or if it stuck on. Check first to make sure the parking brake pedal is released fully, sometimes it will need to be manually pulled back as the tension becomes les on the cable. The drivers dooradjar light is telling you that most likely the door switch on the front dash panel on the door jamb is not functioning, replacing the switch should certainly turn the light off.

Unhooking the battery and letting the computer return to default might help.

it is possible but its also possible you have a wheel speed sensor acting up. you would have to have it scanned for codes

Check ur brake fluid level

I have an '03 Chevy Tahoe and I had a similar problem. I discovered that there is a bare copper striking plate or tab that the medal emergency parking brake pedal touches when the emergency brake is set. It turns on the idiot brake light in the dash. It had broken off and the light stayed on all the time with the say issue of chiming whenever the vehicle is in motion. You or the dealership must replace that striker plate to fix the problem.