|
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. 14 (7.5 A) fuse in under-dash fuse/relay box.
|
|
9
|
LT GRN
*
|
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
|
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.
|
|
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 1
(Air conditioner serial out)
|
Communication signal for climate control unit
|
———
|
HVAC will not respond to navigation commands.
|
|
21
|
BRN
|
AC-CLK 1
(Air conditioner clock)
|
Check signal for climate control unit
|
———
|
HVAC will not respond to navigation commands.
|
|
23
|
WHT
|
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
|
|
25
|
BLK
*
|
JOG SHIELD (Interface dial Shield jog)
|
Shield for interface dial signal
|
———
|
———
|
|
26
|
RED
|
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.
|