Honda Ridgeline. Manual - part 532
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Terminal
Number
Wire Color
Terminal Name
Description
Voltage (about)
Symptom
23-94
Navigation System
System Description (cont’d)
11
RED/BLK
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 7 in under-dash fuse/
relay box.
12
RED
ILL (
)
Ground for
illumination light
With full dash
lights brightness,
0 V
If open: When brightness = ‘‘Auto’’, night mode for
the display is inoperative when lights on.
If short to ground: No change to display.
13
BLU/RED
AUDIO BUS (
)
(GA-NET)
Data bus (
)
GA-Net
0
5 V pulses
average 2.5 V
depends on bus
traffic
If open: XM radio, Navigation buttons and touch
screen do not work.
If short to ground: XM radio, CD changer, and the
navigation hard and touch buttons work OK.
14
GRN/BLK
ECU BUS (GA-
NET) SH GND
(Shield display
bus)
Shield for display
bus terminal
No. 5, 15
0 V
If open: No change to display.
If short to ground: No change to display.
15
PUR
ECU BUS (
)
(GA-NET)
(Display bus
negative)
Data bus (
)
GA-Net
0
5 V pulses
average 2.5 V
depends on bus
traffic
If open: XM radio, Navigation buttons and touch
screen do not work.
If short to ground: XM radio, CD changer, and the
navigation hard and touch buttons work OK.
16
GRN/WHT
SECURITY 5
Security signal
from CD changer
0 V
If open: The security system set, it will not trip when
screen is removed.
If short to ground: If security system set, it will not
trip when screen is removed.
17
BLU
GND SIG
(Ground signal)
Ground for color
signal
0 V
If open: No change to display.
If short to ground: No change to display.
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).
19
BRN
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.
20
GRY
SIG SH GND
(Shield signal)
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.