Honda 2007 Acura RL User Manual page 31

2005-08 ACCESSORIES AND EQUIPMENT Navigation System - RL
SH DISP BUS
GRY
9 (Shield display
(1)
bus)
DISP BUS (+)
10 GRN (Display bus
positive)
(1)
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.
Navigation Unit Connector A (20P)
NAVIGATION UNIT CONNECTOR REFERENCE
Terminal Wire Terminal
Number Color Name
BSIG (Blue
11 YEL
signal)
CSIG
12 BRN (Composite
signal)
GND SIG
13 BLU (Ground
signal)
2007 Acura RL
Shield for display
bus No. 10, 20 0 V
terminals
0-5 V pulses
Data bus (+) GA- average 2.5 V
Net depends on bus
traffic
Description
Blue color signal
Composite video
(vertical/horizontal)
Synchronizing signal
Ground for color signal 0 V






If open: No change to
display.
If short to ground: No
change to display.
If open: Navigation buttons
do not work.
If short to ground:
Navigation buttons do not
work.
Voltage
(about)
If open: Blue color missing
0.2 V AC
(see "RGB COLOR"
average in
diagnostic).
RGB color
If short to ground: Blue color
diagnostic
missing (see "RGB COLOR"
mode
diagnostic).
0.2 VAC If open: Picture rolls
average in horizontally, colors still
RGB color visible. If short to ground:
diagnostic Picture rolls horizontally,
mode colors still visible.
If open: No change to display.
If short to ground: No change
to display.
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)
Symptom