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Thread: Status bit for brakes?

  1. 06-13-2006 #1
    pknowles
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    Status bit for brakes?

    Can we get a status bit that shows when we are on the brakes? Thanks.
    Phil K.
    02 Camaro SS 5.7L LS1
    01 Silverado 1500HD 6.0L LQ4 4L80E 78/75 turbo with Flex Fuel
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  2. 06-13-2006 #2
    12secSS
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    I would think that would be in the BCM, since the ABS is controlled by the BCM. You can always use one of the inputs and tap into the brake light switch.
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  3. 06-13-2006 #3
    pknowles
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    You can always use one of the inputs and tap into the brake light switch.
    This is how I'm doing it now with a simple voltage divider circuit to bring the voltage down around 3V going inot input #2. A status bit would be easier when I drive other cars.
    Phil K.
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  4. 06-20-2006 #4
    jimmyblue
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    The PCM must know about stop light because it
    unlocks the converter. I wonder if it's just hiding
    under an assumed name.
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  5. 06-20-2006 #5
    pknowles
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    Quote Originally Posted by jimmyblue
    The PCM must know about stop light because it
    unlocks the converter. I wonder if it's just hiding
    under an assumed name.
    This has to be in the PCM somewhere.
    Phil K.
    02 Camaro SS 5.7L LS1
    01 Silverado 1500HD 6.0L LQ4 4L80E 78/75 turbo with Flex Fuel
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  6. 06-20-2006 #6
    Rammer
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    "Cruise Brake pedal" switch is a Status bit. It turns red when the brakes are applied. Cruise or no cruise.
    2005 1500 CC Z71
    1997 Pontiac Grand Prix
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  7. 06-21-2006 #7
    pknowles
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    Quote Originally Posted by Rammer
    "Cruise Brake pedal" switch is a Status bit. It turns red when the brakes are applied. Cruise or no cruise.
    I tried that sitting still and got nothing from that status bit.
    Phil K.
    02 Camaro SS 5.7L LS1
    01 Silverado 1500HD 6.0L LQ4 4L80E 78/75 turbo with Flex Fuel
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  8. 06-21-2006 #8
    Chris@HPTuners
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    do 02 camaro's have a brake switch that is connected to the PCM? I thought they had an external cruise control module.
    I count sheep in hex...
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  9. 06-21-2006 #9
    12secSS
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    Chris, I can check my 2001 Camaro Helm's manuals for more detailed info for you.
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  10. 07-03-2006 #10
    pknowles
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    This morning on the way to work I logged the "Cruise brake pedal" and the "Cruise brake pedal switch" (I think those are the names). Cruise on or off these status bit didn't do anything. Is this a bug?
    Phil K.
    02 Camaro SS 5.7L LS1
    01 Silverado 1500HD 6.0L LQ4 4L80E 78/75 turbo with Flex Fuel
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  11. 07-03-2006 #11
    jimmyblue
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    Cruise is external but the PCM still unlocks the converter
    for braking, so must know about brake.

    I'm not seeing the cruise control stuff in my latest list
    of available PIDs.
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  12. 07-03-2006 #12
    pknowles
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    I have an M6.
    Phil K.
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    01 Silverado 1500HD 6.0L LQ4 4L80E 78/75 turbo with Flex Fuel
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  13. 07-03-2006 #13
    Chris@HPTuners
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    Quote Originally Posted by pknowles
    This morning on the way to work I logged the "Cruise brake pedal" and the "Cruise brake pedal switch" (I think those are the names). Cruise on or off these status bit didn't do anything. Is this a bug?
    the cruise brake switch is not connected to the PCM in all applications.
    I count sheep in hex...
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