Navigation Unit Inputs and Outputs for Connector A (20P)
Terminal Number
Wire Color
Terminal Name
Description
Voltage (about)
Symptom
1
WHT
R SIG (Red signal)
Red color signal
0−1 V AC
If open: Red color missing (see ‘‘RGB Color'' diagnostic).
If short to ground: Red color missing (see ‘‘RGB Color'' diagnostic).
2
RED
G SIG (Green signal)
Green color signal
0−1 V AC
If open: Green color missing (see ‘‘RGB Color'' diagnostic).
If short to ground: Green color missing (see ‘‘RGB Color'' diagnostic).
3
GRY
SIG SHIELD GND(Shield signal)
Shield for terminal No. 1, 2, 11, 12, 13
0 V
If open: No change to display.
If short to ground: No change to display.
4
ORN
SI (A/C Signal input)
A/C input signal
0−battery voltage pulses
If open: Voice control does not work.
If short to ground: Voice control does not work.
5
GRY
ILL (+) (Illumination positive)
Parking light on signal from dash and console lights, under-hood ‘‘Relay fuse box''
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 fuse No. 14 (7.5 A) in under-dash fuse/relay box.
9
LT GRN
ECU BUS (GA-NET) SHIELD GND (Shield display bus)
Shield for display bus terminal No. 10, 20
0 V
If open: No change to display.
If short to ground: No change to display.
10
GRN
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 and touch screen do not work.
If short to ground: Navigation buttons do not work.

Terminal Number
Wire Color
Terminal Name
Description
Voltage (about)
Symptom
11
YEL
B SIG (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).
12
BLK
C SIG (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.
13
GRN
GND SIG (Ground signal)
Ground for color signal
0 V
If open: No change to display.
If short to ground: No change to display.
14
PUR
SO (A/C Signal output)
A/C output signal
0−battery voltage pulses
If open: A/C voice control does not work.
If short to ground: A/C voice control does not work.
15
BRN
CLK (A/C Clock signal)
Time set sync signal
0−battery voltage pulses
If open: A/C voice control does not work.
If short to ground: A/C voice control does not work.
17
WHT
JOG (Jog)
Interface dial operation signal
0−5 V palses
If open: You cannot operate navigation system
If short to ground: You cannot operate navigation system
19
BLK
JOG SHIELD (Shield jog)
Shield for interface dial signal
———
———
20
RED
ECU BUS (−) (GA-NET) (Display bus negative)
Data bus (−) GA-Net
0−5 V pulses nominally 2.5 V
If open: Navigation buttons and touch screen do not work.
If short to ground: Navigation hard and touch buttons work OK.