Honda Accord 2008 Manual page 2605

07/11/02 10:03:14 61TA0000_230_0161
Navigation System
System Description (cont'd)
Navigation Unit Connector B (32P)
Terminal Wire Color
Number
17 YEL
18 BLK
19 GRN
20 PUR
21 BRN
23 BLU
24 RED
25 GRY
26 RED
: 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.
23-160
Terminal Name Description
B SIG 1 Blue color signal
(Blue signal)
C SIG 1 Composite video
(Composite (vertical/horizontal)
signal) Synchronizing
signal
GND SIG 1 Ground for color
(Ground signal) signal
AC-SO Communication
(Air conditioner signal for climate
serial out) control unit
AC-CLK Check signal for
(Air conditioner climate control unit
clock)
JOG Interface dial
(Interface dial operation signal
Jog)
CAN-L F-CAN bus
(CAN low) communication
SH JOG Shield for interface
(Interface dial dial signal
Shield jog)
GA-NET ECU Data bus −
−
BUS
(Display bus
negative)
Voltage (about)
0.2 V AC If open: Blue color missing (see RGB Color
average in diagnostic).
RGB color If short to ground: Blue color missing (see RGB
diagnostic mode Color diagnostic).
0.2 V AC If open: Picture rolls horizontally, colors still visible.
average in If short to ground: Picture rolls horizontally, colors
RGB color still visible.
diagnostic mode
0 V If open: No change to display.
If short to ground: No change to display.
――― HVAC will not respond to navigation commands.
――― HVAC will not respond to navigation commands.
−
0 5 V pulses If open: You cannot operate navigation system
If short to ground: You cannot operate navigation
system
−
Pulses 2.5 6 V If open:
2.5 V average 1) System Links PCM, and Gauge Control Module
(depends on both show NG.
bus traffic) 2) F-CAN diagnostic = NG.
3) B-CAN diagnostic = NG.
4) Car status CHG (CAN) = 0.
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.
• 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)
―――
0 5 V pulses − If open: Navigation buttons do not work.
2.5 V average If short to ground: Hard buttons work OK.
(depends on
bus traffic)
Symptom
―――