Honda Accord 2008 Manual page 2603

07/11/02 09:54:06 61TA0000_230_0159
Navigation System
System Description (cont'd)
Navigation Unit Inputs and Outputs
＊１５
Navigation Unit Connector A (8P)
Terminal
Number
1
2
4
5
6
7
8
23-158
NAVIGATION UNIT CONNECTOR A (8P)
Wire Color Terminal Name Description
WHT ＋ B Continuous power
( B Power ＋ source
source)
PUR ACC Power source for
(Accessory) accessories
BLK GND Ground for
(Ground) navigation unit
(G605)
LT BLU BACK LT Reverse signal of
(Back light or select lever from
reverse signal) Multiplex
Integrated Control
Unit (A/T) or
backup light switch
(M/T)
BLU VSP Vehicle speed
(Vehicle speed pulse signal from
pulse) PCM
RED DIAG ＋ Service check
(Diagnostic signal for
positive) navigation system
YEL DIAG − Ground for service
(Diagnostic check signal
negative)
Wire side of female terminals
Voltage (about)
Battery voltage If open: Display picture goes out (display back light
still on).
NOTE: System will reboot to enter code screen.
If short to ground: Blows fuse No. 15 (10 A) in the
under-hood fuse/relay box.
Battery voltage If open: Display picture goes out (display back light
at ACC (I) still on).
If short to ground: Blows fuse No. 18 (7.5 A) in the
driver's under-dash fuse/relay box.
0 V If open: No effect on system.
If short to ground: No effect on system.
In reverse, If open: Navigation never sees reverse.
battery voltage: Diagnostic screen Car Status, Back=0.
Otherwise 0 V If short to ground: Blows fuse No. 5 (7.5 A) in the
driver's under-dash fuse/relay box.
0 5 V pulses − If open: No vehicle speed pulses.
average 2.5 V Diagnostic screen Car Status, VSP Navi=0.
(Depending on If short to ground: No vehicle speed pulses.
bus traffic) Diagnostic screen Car Status, VSP Navi=0.
5 6 V − If open: No effect on system.
If short to ground: System goes into diagnostic
mode at key ON (I) and (II).
0 V If open: The system will not go into diagnostic
mode when using the SCS jumper.
If short to ground: No effect on system.
Symptom