( TL19E00J36100000000CAAT20 )

Navigation Display Unit Inputs and Outputs
Navigation Display Unit 28P Connector

Terminal Number | Wire Color | Terminal Name | Description | Voltage (about) | Symptom
--- | --- | --- | --- | --- | ---
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. 15 (10 A) in the under-hood fuse/relay box.
2 | PUR | ACC (Accessory) | Power source for accessory | Battery voltage at ACC (I) | If open: Display do not work. If short to ground: Blows fuse No. 18 (7.5 A) in the driver's under-dash fuse/relay box.
3 | RED | 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 buttons and touch screen do not work. If short to ground: Navigation buttons do not work.
4 | GRY * | GA-NET BUS SH (GA-NET) | Shield for terminals No. 3, 17 | 0 V | If open: No change to display. If short to ground: No change to display.
5 | GRN | GA-NET ECU BUS+ (GA-NET)(Display bus positive) | Data bus+ GA-Net | 0−5 V pulses average 2.5 V depends on bus traffic | If open: Navigation buttons do not work. If short to ground: Navigation buttons do not work.
6 | YEL | SECURITY+ | Security signal to rear screen | 0 V | If open: The security system will set, and will not trip when screen is removed. If short to ground: The security system will set, and will not trip when screen is removed.
8 | WHT | R SIG 1 (Red signal) | Red color signal | 0.7 V AC | If open: Red color missing (see RGB Color diagnostic). If short to ground: Red color missing (see RGB Color diagnostic).
9 | RED | G SIG 1 (Green signal) | Green color signal | 0.7 V AC | If open: Green color missing (see RGB Color diagnostic). If short to ground: Green color missing (see RGB Color diagnostic).
10 | BLK | GND (Ground) | Ground for display unit | 0 V | If open: No change to display. If short to ground: No change to display.

*: | The shielded wires have a heat-shrink tube insulating the outside of the wire. The color of the insulating tube, typically black or dark gray, may not match the color of the wire shown on the circuit diagram.

Navigation Display Unit 28P Connector

Terminal Number | Wire Color | Terminal Name | Description | Voltage (about) | Symptom
--- | --- | --- | --- | --- | ---
11 | GRY * | CAMERA SH (Shield camera) | Shield for terminals No. 12, 13, 26, 27 | 0 V | If open: No change to rearview camera image. If short to ground: No change to rearview camera image.
12 | BLK | CAMERA GND (Ground camera) | Ground for camera signal | 0 V | If open: No change to rearview camera image. If short to ground: No change to rearview camera image.
13 | WHT | RC VCC (Video camera) | Video signal for rearview camera | 0.3 V | If open: No change to rearview camera image. If short to ground: No change to rearview camera image.
15 | GRY | ILL+ (Illumination positive) | Parking light on signal from dash and console lights | Battery voltage if lights on: otherwise 0 V | If open: When brightness=Auto, night mode for the display is inoperative when lights on. If short to ground: Blows fuse No. 6 (7.5 A) in the passenger's under-dash fuse/relay box.
17 | GRN | GA BUS− (GA-NET) | Data bus− GA-Net | 0−5 V pulses average 2.5 V depends on bus traffic | If open: Navigation buttons do not work. If short to ground: Hard buttons work OK.
18 | GRY * | SH GA-NET ECU BUS (Shield ECU bus) | Shield for display bus terminal No. 5, 19 | 0 V | If open: No change to display. If short to ground: No change to display.
19 | RED | GA-NET ECU BUS− (Display bus negative) | Data bus− GA-Net | 0−5 V pulses average 2.5 V depends on bus traffic | If open: Navigation buttons and touch screen do not work. If short to ground: Hard and touch buttons work OK.
20 | YEL | SECURITY− | Security signal from CD changer | 0 V | If open: The security system will set, and will not trip when screen is removed. If short to ground: The security system will set, and will not trip when screen is removed.
21 | BLU | GND SIG 1 (Ground signal) | Ground for color signal | 0 V | If open: No change to display. If short to ground: No change to display.
22 | YEL | B SIG 1 (Blue signal) | Blue color signal | 0−1 V AC | If open: Blue color missing (see RGB Color diagnostic). If short to ground: Blue color missing (see RGB Color diagnostic).
23 | BRN | C SIG 1 (Composite signal) | Composite video (vertical/horizontal) synchronizing signal | 0.3 V AC | If open: Picture rolls horizontally, colors still visible. If short to ground: Picture rolls horizontally, colors still visible.
24 | GRY * | SH SIG 1 (Shield signal) | Shield for terminals No. 8, 9, 21, 22, 23 | 0 V | If open: No change to display. If short to ground: No change to display.
26 | GRN | CAMERA (VCC supply) | Power source for rearview camera | 8 V | If open: When put into reverse, the navigation screen goes black (backlight still operation) If short to ground: When put into reverse, the navigation screen goes black (backlight still operative).
27 | BLK | RC GND (Ground camera) | Ground for camera signal | 0 V | If open: No change to rearview camera image. If short to ground: No change to rearview camera image.
28 | BRN | CAMERA ADPT (Adaptive camera) | Control signal for rearview camera | 0 V | If open: No change to rearview camera image. If short to ground: No change to rearview camera image.

*: | The shielded wires have a heat-shrink tube insulating the outside of the wire. The color of the insulating tube, typically black or dark gray, may not match the color of the wire shown on the circuit diagram.