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How to simulate "Reverse" on workbench

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  • How to simulate "Reverse" on workbench

    I've got my carputer powered up on my work bench, but I need to figure out how to simulate the car being put in reverse (to activate the hardware controlled rearview camera). Sounds like I need 12V to that wire, but I wanted some expert recomendations before I connect any hot wires.

    (Before posting I searched the forums and this was the closest I found, but still not discussing how to do it out of the car)
    _______________________________________________
    All installed, and ready for visitors. Infill G4 in a 2007 Saturn VUE

  • #2
    Indeed

    In the same situation with Eonon screen. With nothing in the manual I first connected the ground with no response, then bit the bullet and connected the +12 to the trigger wire.

    Happy to say the effect was switching to AV2 instead of a fried unit!

    I don't advise trying unless you can accept the risk..

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    • #3
      Don't want to fry anything. I've got one wire labeled "reverse" and no seperate ground wire (assume it just grounds from the main ground?) Here's the wiring harness breakdown from the manual: from that I assume I can connect it to a 12v coming off of the desktop power supply just as I did to ower up the carputer on the work bench. If i connect/disconnect (manually or with a switch) it should activate and deactivate the rearview camera.

      Green/Black - Rear Left Negative
      Speaker lead
      Green - Rear Left Positive Speaker
      lead
      White/Black - Front Left Negative
      Speaker lead
      White - Front Left Positive Speaker
      lead
      Purple/Black - Rear Right Negative
      Speaker lead
      Purple - Rear Right Positive Speaker
      lead
      Gray/Black - Front Right Negative
      Speaker lead
      Gray - Front Right Positive Speaker
      lead
      Light Green - Reverse Gear
      Detection lead. This lead must be
      connected for the G4 to switch
      automatically to view the rear view
      camera. This lead needs to see
      +12v.

      Orange/White - Illumination lead.
      Wire this lead up to the illumination
      wire on the car. This wire needs to
      see +12 volts when the parking
      lights of the car are activated.
      Pink – Attenuator. This will cause
      the radio to mute when the cell
      phone rings when used in
      conjunction with a cell phone kit.
      Currently this feature is nonfunctional.
      Brown - Remocom - This is for
      steering wheel control. An adapter
      for the particular vehicle might be
      needed. Currently this feature is
      non-functional.
      Blue - Antenna Turn On. If the
      vehicle has a powered antenna (an
      antenna that is motorized), this lead
      will need to be hooked up. It will
      cause the antenna in the car to
      extend and retract when the radio is
      accessed.
      Light Blue - Hand Brake. This lead
      needs to be wired up as a safety
      feature. It will sense when the hand
      brake is applied and will cause
      certain features of the software to be
      enabled when engaged.
      Blue/White - Amplifier Turn On. This
      lead is used to sent the remote turn
      on signal to your amplifiers if you are
      running any.
      Red – Accessory. This wire must be
      connected to an accessory wire
      within the vehicle. This wire senses
      when the ignition is turned on and
      will cause a turn on and turn off
      signal to be sent to the G4.
      Yellow – Power. This wire must be
      connected to the battery in the car.
      Do NOT splice this wire into a wire of
      a smaller gauge. Doing so will risk
      the unit not operating properly and
      could cause an electrical fire. If the
      wire in the factory harness is the
      EXACT same gauge as the wire on
      the G4 harness, splicing into it will
      suffice.
      Black – Ground. This wire must be
      connected to the battery in the car.
      Do NOT splice this wire into a wire of
      a smaller gauge. Doing so will risk
      the unit not operating properly and
      could cause an electrical fire. If the
      wire in the factory harness is the
      EXACT same gauge as the wire on
      the G4 harness, splicing into it will
      suffice.
      _______________________________________________
      All installed, and ready for visitors. Infill G4 in a 2007 Saturn VUE

      Comment

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