Honda Ridgeline. Manual — part 530
*04
Diagnostic Function Diagram
23-86
Navigation System
System Description (cont’d)
This diagram shows the diagnostic slice of the System Function Diagram. It has the diagnostic features of the
navigation system starting at the center and working outward in layers. The diagnostic starts at ‘‘Key ON,’’ and then
displays the Diagnostic Main Menu (Select Diagnosis items) after:
The diagram shows the available menu choices starting at the button left and moving clockwise.
You will find a detailed explanation of each feature on the given page numbers.
In most cases, do not clear or change settings in any diagnostic screen unless instructed to do so in the explanation or
by the factory. If the factory supplies you with a PCMCIA card to place in the PC slot, then the features specified in the
diagram with ‘‘Card’’ are available.
• Starting the vehicle with the SCS connector plugged in to the navigation service check connector (see page 23-138)
to get to the System Links screen, then selecting Return.
• Simultaneously pressing and holding the MENU, MAP/GUIDE, and CANCEL buttons.
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Navigation Unit Inputs and Outputs for Connector A (20P)
Terminal
Number
Wire Color
Terminal Name
Description
Voltage (about)
Symptom
23-87
1
WHT
R SIG
(Red signal)
Red color signal
0.2 V AC average
in RGB color
diagnostic mode
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
0.2 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
SIG 1 SHIELD
GND
(Shield signal)
Shield for No. 1, 2,
11, 12, 13 terminals
0 V
If open: No change to display.
If short to ground: No change to display.
4
WHT/BLU
SI
(A/C Signal
input)
A/C input signal
0
battery
voltage pulses
If open: Voice control does not work.
Will affect navi display dimming.
If short to ground: Voice control does not work.
Will affect navi display dimming.
5
RED/BLK
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 7 in under-dash fuse/
relay box.
9
GRN/BLK
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
LT 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 XM radio, CD
changer, and touch screen do not work.
: The shielded wires have a heat-shrunk 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 listed on the schematic.
(cont’d)
Wire side of female terminals
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Terminal
Number
Wire Color
Terminal Name
Description
Voltage (about)
Symptom
23-88
Navigation System
System Description (cont’d)
11
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).
12
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.
13
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.
14
WHT/RED
SO
(A/C Signal
output)
A/C output signal
0
battery
voltage pulses
If open: A/C voice control does not work.
Will affect navi display dimming.
If short to ground: A/C voice control does not work.
Will affect navi display dimming.
15
WHT/BLK
CLK
(A/C Clock
signal)
Time set sync
signal
0
battery
voltage pulses
If open: A/C voice control does not work.
Will affect navi display dimming.
If short to ground: A/C voice control does not work.
20
PUR
ECU BUS (
)
(GA-NET)
(Display bus
negative)
Data bus (
)
GA-Net
0
5 V pulses
nominally 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
Navigation hard and touch buttons work OK.
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09
Navigation Unit Inputs and Outputs for Connector B (14P)
Terminal
Number
Wire Color
Terminal Name
Description
Voltage (about)
Symptom
23-89
2
BLU
SAT BUS (
)
(GA-NET)
Data bus (
)
GA-Net
0
5 V pulses
average 2.5 V
depends on bus
traffic
If open: XM radio does not work.
If short to ground: XM radio, CD changer,
Navigation buttons, and touch screen do not work.
5
WHT
RG L (
)
(Route guidance
voice left
positive)
Left audio signal of
voice guidance,
and Voice
Recognition (VR)
prompts
Audio signal
0.004
0.04 V
If open: If voice activated, radio speakers buzz; if
voice off, no effect.
If short to ground: If voice activated, radio speakers
buzz; if voice off, no effect.
6
BLU
MIC SIG (
)
(Mic signal
positive)
Microphone output
signal positive
4
5 V
(with TALK
button pressed)
If open: No microphone signal shown in diagnostic
screens: ‘‘Navi System Link’’ and Functional Setup
‘‘Mic Level’’.
If short to ground: No microphone signal shown in
diagnostic screens: ‘‘Navi System Link’’ and
Functional Setup ‘‘Mic Level’’.
8
PNK
SAT BUS (
)
(GA-NET)
Data bus (
)
GA-Net
0
5 V pulses
average 2.5 V
depends on bus
traffic
If open: XM radio does not work.
If short to ground: XM radio, CD changer,
Navigation buttons, and touch screen work OK.
9
BRN
SAT BUS SH
GND
Shield for No. 2, 8
terminals
0 V
If open: No effect on XM radio.
If short to ground: No effect on XM radio.
10
GRY
STRG SW
(Steering wheel
switches)
Steering wheel
switch output
4
5 V
(Talk button
pressed)
2.5
3 V
(Back button
pressed)
If open: Steering wheel ‘‘Talk‘‘, and ‘‘Back‘‘ switch/
buttons do not work.
If short to ground: Steering wheel ‘‘Talk’’, and
‘‘Back’’ switch/buttons do not work.
11
LT GRN
RG SHIELD GND
(Shield route
guidance)
Shield for No. 5, 12
terminals
0 V
If open: No effect on voice output.
If short to ground: No effect on voice output.
12
BLU/RED
RG GND
(Routs guidance
ground)
Ground for voice
guidance, and
Voice Recognition
(VR) prompts
0 V
If open: No effect on voice output.
If short to ground: No effect on voice output.
13
LT BLU
MIC SH
(Mic shield)
Shield for No. 6, 14
terminals
0 V
If open: No effect on voice recognition.
If short to ground: No effect on voice recognition.
14
PNK
MIC GND
(Mic ground)
Ground for
microphone signal
0 V
If open: No microphone signal shown in
diagnostics: ‘‘Navi System Link’’ and Functional
Setup ‘‘Mic Level’’.
If short to ground: No effect on voice recognition.
: The shielded wires have a heat-shrunk 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 listed on the schematic.
(cont’d)
Wire side of female terminals
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