Honda Accord 2008 Manual page 2604

07/11/02 09:54:07 61TA0000_230_0160
Navigation Unit Inputs and Outputs
＊１６
Navigation Unit Connector B (32P)
Terminal
Number
1
2
3
4
5
8
9
10
: 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)
Wire Color Terminal Name Description
WHT R SIG 1 Red color signal
(Red signal)
RED G SIG 1 Green color signal
(Green signal)
GRY SH SIG 1 Shield for terminal
(Shield signal) No. 1, 2, 17, 18, 19
ORN AC-SI Communication
(Air conditioner signal for climate
serial in) control unit
＋
GRY ILL Parking light on
(Illumination signal
positive)
WHT CAN-H F-CAN bus
(CAN high) communication
GRY GA-NET SH ECU Shield for display
BUS (Shield bus No. 10, 20
display bus) terminal
GRN GA-NET ECU Data bus
＋
BUS (Display GA-NET
bus positive)
Wire side of female terminals
Voltage (about)
0.7 V AC If open: Red color missing (see RGB Color
average diagnostic).
If short to ground: Red color missing (see RGB
Color diagnostic).
0.7 V AC If open: Green color missing (see RGB Color
average in diagnostic).
RGB color If short to ground: Green color missing (see RGB
diagnostic mode Color diagnostic).
0 V If open: No change to display.
If short to ground: No change to display.
――― HVAC will not respond to navigation commands.
Lights on: If open: When brightness = Auto, night mode for the
battery voltage, display is inoperative when lights on.
Lights off: 0 V If short to ground: Blows No. 6 (7.5 A) fuse in
passenger's under-dash fuse/relay box.
Pulses 2.5 6 V − If open:
average 2.5 V 1) System Links FI-ECU, and Meter both show NG.
(depends on 2) F-CAN diagnostic = NG.
F-CAN 3) B-CAN diagnostic = NG.
communication 4) Car status CHG (CAN) = 0.
traffic) 5) Functional Setup, Trip info, FUP & Sampled
FL = 0.
If short to ground: Same diagnostic conditions as
when open, and also sets the following DTCs.
•
•
•
•
•
•
0 V If open: No change to display.
If short to ground: No change to display.
＋ 0 5 V pulses − If open: Navigation buttons do not work.
average 2.5 V If short to ground: Navigation buttons do not work.
(depends on bus
traffic)
Symptom
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)
(cont'd)
23-159