Navigation Display Unit Inputs and Outputs for 20P Connector
WARNING: This page is about a different car, the 2009 Acura MDX, 2008 Acura MDX, and 2007 Acura MDX. However, it is still accessible from the selected car via links, so may be relevant.
Navigation Display Unit 20P Connector
NAVIGATION DISPLAY UNIT 20P CONNECTOR TERMINAL REFERENCE
| Terminal Number | Wire Color | Terminal Name | Description | Voltage (about) | Symptom | ||||||
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| 1 | WHT | +B (+B power source) | Continuous power source | Battery voltage | If open: Screen completely off (no backlight visible). If short to ground: Blows fuse No. 7 (10 A) in the under-dash fuse/relay box. |
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| 2 | PUR | ACC (Accessory) | Power source for accessory | Battery voltage at ACC (I) | If open: Display and buttons do not work. If short to ground: Blows fuse No. 32 (10 A) in the under-dash fuse/relay box. |
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| 5 | GRN | GA NET BUS+ (GA-NET bus positive) | Data bus (+) GA-Net | 0-5 V pulses average 2.5 V depends on bus traffic | If open: Navigation hard buttons do not work. If short to ground: Navigation hard buttons XM/ AcuraLink and RES do not work. |
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| 6 | RED | SCTY (1) (Security positive) | Security signal | 0 V | If open: If security system set, it will not trip when screen is removed. If short: If security system set, it will not trip when screen is removed. |
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| 8 | WHT | R SIG (Red signal) | Red color signal | 0.2 V AC average in RGB color diagnostic mode | If open: Red color missing (see RGB Color diagnostic). If short to ground: Red color missing (see RGB Color diagnostic). |
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| 9 | RED | G SIG (Green signal) | Green color signal | 0.2 V AC average in RGB color diagnostic mode | If open: Green color missing (see RGB Color diagnostic). If short to ground: Green color missing (see RGB Color diagnostic). |
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| 10 | BLK | GND (Ground) | Ground for display unit | 0 V | If open: No change to display. If short to ground: No change to display. |
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| 11 | YEL | ILL(+) (Illumination positive) | Parking light on signal from dash and console light | Lights on: battery voltage, Lights off: 0 V | If open: When brightness Auto, night mode for the display is inoperative when lights on. If short to ground: Blows small light relay in under-hood fuse/relay box. |
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| 14 | BRN | GA NET BUS SH (GA-NET bus negative) | Shield for display bus No. 5,16 terminals | 0 V | If open: No change to display. If short to ground: No change to display. |
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| 15 | RED | GA NET BUS-- (GA-NET bus negative) | Date bus (-) GA-Net | 0-5 V pulses average 2.5 V depends on bus traffic | If open: Navigation hard buttons do not work. If short to ground: Navigation hard buttons work OK. |
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| 16 | PNK(1) LT GRN(2) | SCTY (3,4) (Security negative) | Security signal | 0 V | If open: If security system set, it will not trip when screen is removed. If short: If security system set, it will not trip when screen is removed. |
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| 17 | BLK | GND SIG (Ground signal) | Ground for color signal | 0 V | If open: No change to display. If short to ground: No change to display. |
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| 18 | YEL | B SIG (Blue signal) | Blue color signal | 0.2 V AC average in RGB color diagnostic mode | If open: Blue color missing (see RGB Color diagnostic). If short to ground: Blue color missing (see RGB Color diagnostic). |
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| 19 | GRN | C SIG (Composite signal) | Composite video (vertical/horizontal) synchronizing signal | 0.2 V AC average in RGB color diagnostic mode | If open: Picture rolls horizontally, colors still visible. If short to ground: Picture rolls horizontally, colors still visible. |
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| 20 | BRN(3) | SIG SH (Signal shield) | Shield for No. 8, 9, 17, 18, 19 terminals | 0 V | If open: No change to display. If short to ground: No change to display. |
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