( TL19E00J36100000000CAAT20 )

Navigation Unit Inputs and Outputs
Navigation Unit Connector B (32P)

Terminal Number | Wire Color | Terminal Name | Description | Voltage (about) | Symptom
--- | --- | --- | --- | --- | ---
1 | WHT | R SIG 1 (Red signal) | Red color signal | 0.7 V AC average | If open: Red color missing (see RGB Color diagnostic). If short to ground: Red color missing (see RGB Color diagnostic).
2 | RED | G SIG 1 (Green signal) | Green color signal | 0.7 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).
3 | GRY * | SH SIG 1 (Shield signal) | Shield for terminals No. 1, 2, 17, 18, 19 | 0 V | If open: No change to display. If short to ground: No change to display.
4 | ORN | AC-SI (Air conditioner serial in) | Communication signal for climate control unit | ——— | HVAC will not respond to navigation commands.
5 | GRY | ILL+ (Illumination positive) | Parking light on signal | 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 No. 6 (7.5 A) fuse in passenger's under-dash fuse/relay box.

8

WHT

CAN-H (CAN high)

F-CAN bus communication

Pulses 2.5−6 V average 2.5 V (depends on F-CAN communication traffic)

If open:
1) System Links Gauge Control Module show NG.
2) F-CAN diagnostic = NG.
3) Car status IGNITION = 0.
If short to ground: Same diagnostic conditions as when open, and also sets the following DTCs.

- B1168 Gauge Control Module loss of Comm. (Engine)
- B1169 Gauge Control Module loss of Comm. (A/T)
- B1178 F-CAN communication Circuit error.
- U0073 (F-CAN bus off)
- U0155 (F-CAN Gauge control module)
- U0121 (F-CAN VSA control)

9 | GRY * | GA-NET SH ECU BUS (Shield display bus) | Shield for display bus No. 10, 26 terminals | 0 V | If open: No change to display. If short to ground: No change to display.
10 | GRN | GA-NET ECU BUS+ (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.

*: | 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 Unit Connector B (32P)

Terminal Number | Wire Color | Terminal Name | Description | Voltage (about) | Symptom
--- | --- | --- | --- | --- | ---
17 | YEL | B SIG 1 (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).
18 | BLK | C SIG 1 (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.
19 | GRN | 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.
20 | PUR | AC-SO (Air conditioner serial out) | Communication signal for climate control unit | ——— | HVAC will not respond to navigation commands.
21 | BRN | AC-CLK (Air conditioner clock) | Check signal for climate control unit | ——— | HVAC will not respond to navigation commands.
23 | BLK | JOG (Interface dial Jog) | Interface dial operation signal | 0−5 V pulses | If open: You cannot operate navigation system If short to ground: You cannot operate navigation system

24

RED

CAN-L (CAN low)

F-CAN bus communication

Pulses 2.5−6 V 2.5 V average (depends on bus traffic)

If open:
1) System Links Gauge Control Module show NG.
2) F-CAN diagnostic = NG.
3) Car status IGNITION = 0.
If short to ground: Same diagnostic conditions as when open, and also sets the following DTCs.

- B1168 Gauge Control Module loss of Comm. (Engine)
- B1169 Gauge Control Module loss of Comm. (A/T)
- B1178 F-CAN communication Circuit error.
- U0073 (F-CAN bus off)
- U0155 (F-CAN Gauge control module)
- U0121 (F-CAN VSA control)

25 | GRY * | SH JOG (Interface dial Shield jog) | Shield for interface dial signal | ——— | ———
26 | RED | GA-NET ECU BUS− (Display bus negative) | Data bus− | 0−5 V pulses 2.5 V average (depends on bus traffic) | If open: Navigation buttons do not work. If short to ground: Hard buttons work OK.

*: | 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.