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Thread: Another resistive "steering wheel buttons" question.

  1. #1
    Low Bitrate erie's Avatar
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    Another resistive "steering wheel buttons" question.

    OK so I have a 2006 Civic with the steering wheel controls, I have found the resistive wire in the radio loom(REMC -Pink), but it only shows resistance against the (REMG -Brown). I have tested the pink wire resistance against ground and I don't get any values. Will I still be able to use a voltage divider with this type of setup?

    Here is the values I get from my meter on the 20k setting.
    No buttons pressed: 9.94
    Ch+ Pressed: 1.69
    Ch- Pressed: .77
    Vol+ Pressed: .36
    Vol- Pressed: .10
    Mode Pressed: 3.70

    Could you help me out by giving the value of resisters I'll need to by?
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  2. #2
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    REMC probably stands for remote control, and REMG probably stands for remote ground.

    grab something around a 3.7kohm resistor, hook it up like this:



    +5v is the inside pin
    GND is the middle pin
    the outside pin connects between the resistor and steering wheel

  3. #3
    Low Bitrate erie's Avatar
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    Thanks for your responce, but I'm still a little confused, where would the REMG wire go in your diagram? When I did my tests the wire REMC was not connected to ground.

    P.S. Thank you for your help
    -=ew
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    Maximum Bitrate customaudioman's Avatar
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    Quote Originally Posted by erie View Post
    OK so I have a 2006 Civic with the steering wheel controls, I have found the resistive wire in the radio loom(REMC -Pink), but it only shows resistance against the (REMG -Brown). I have tested the pink wire resistance against ground and I don't get any values. Will I still be able to use a voltage divider with this type of setup?
    Here is the values I get from my meter on the 20k setting.
    No buttons pressed: 9.94
    Ch+ Pressed: 1.69
    Ch- Pressed: .77
    Vol+ Pressed: .36
    Vol- Pressed: .10
    Mode Pressed: 3.70

    Could you help me out by giving the value of resisters I'll need to by?
    I have 03 honda accord with steering wheel controls. I went to hinda and they printed off diagram of the wiring system for radio. my diagram the resistive wire is the green/red
    wire in the wire harness.on my setup , the brown wire is for if you have navigation, which I do not have. brown wire is what communicates info between the voice control switch, radio and nav. green/red is what gives the values (voltages).

    my values on the meter with 20k setting
    No buttons pressed 3.9v
    ch+ pressed 2.66v
    ch- pressed 1.82v
    vol+ pressed 1.08v
    vol- pressed 0.37v
    mode pressed 3.39v

  5. #5
    Maximum Bitrate customaudioman's Avatar
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    so since my resistive wire is under 5v, I dont need to use any resistors on the wire. Make sure you have the right wire. 9.94v seems high

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    Quote Originally Posted by customaudioman View Post
    so since my resistive wire is under 5v, I dont need to use any resistors on the wire. Make sure you have the right wire. 9.94v seems high
    I believe he's measuring resistance, because his buttons are not powered.

  7. #7
    Maximum Bitrate customaudioman's Avatar
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    all the honda are the same

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    Maximum Bitrate customaudioman's Avatar
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    Quote Originally Posted by greenman100 View Post
    I believe he's measuring resistance, because his buttons are not powered.
    how is mine power and his is not? not understanding what you mean by that. by the way, how do you measure resistance? what setting on voltmeter do you use??

  9. #9
    Low Bitrate erie's Avatar
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    greenman100 is right, I am measuring resisatance in ohms. Would I connect the REMG wire to ground? If so would it go like this: Ground>REMG REMC>3.7ohm>+5v Then the brain would just read the voltage from the divider?

    customaudioman - My meter is set to 20k and so the values I listed are in ohms and not volts. I was hoping that I could get readings in volts and ditch the whole voltage divider thing, but my honda is not that cool. Also note that this a whole new generation of hondas so you cant expect that all the devices will work the same.
    06 Galaxy Gray Si #0308
    CarPc Progress -
    10%---------50%---------100%
    -[XXXXXXXXXXXXXXXXXXXXXX]-

  10. #10
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    Quote Originally Posted by erie View Post
    greenman100 is right, I am measuring resisatance in ohms. Would I connect the REMG wire to ground? If so would it go like this: Ground>REMG REMC>3.7ohm>+5v Then the brain would just read the voltage from the divider?
    yes.

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