Honda ACCORD HYBRID 2005 Service Manual page 2064

Navigation System
S y s t e m D e s c r i p t i o n ( c o n t ' d )
Navigation Unit Inputs and Outputs for Connector C (8P)
1 2 4
5 6
7
8
W i r e side of female t e r m i n a l s
Terminal
Number
Wire Color Terminal Name Description Voltage (about) Symptom
1 WHT + B
( + B Power
source)
Continuous power
source
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. 7 (10A) in the
under-dash fuse/relay box.
2
YEL
ACC
(Accessory)
Power source for
accessories
Battery voltage
at ACC (I)
If open: Display picture goes out (display back light
still on).
NOTE: When re-connected the system will reboot to
"enter code" screen.
If short to ground: Blows fuse No. 32 (7.5A) in the
under-dash fuse/relay box.
4 BLK GND
(Ground)
Ground for
navigation unit
0 V If open: No effect on system.
If short to ground: No effect on system.
5 WHT/RED BACK LT
(Back light)
Reverse signal of
select laver from
"Multiplex
Integrated Control
Unit" (A/T) or
backup light switch
(M/T)
In reverse,
battery voltage:
Otherwise 0 V
If open: Navigation never sees reverse.
Diagnostic screen "Car Statue," "Back"=0.
If short to ground: Blows fuse No. 21 (7.5A) in the
under-dash fuse/relay box.
6 BLU VSP
(Vehicle speed
pulse)
Vehicle speed
pulse signal from
PCM
Pulses 0—5 V:
Average 2.5 V,
when moving
If open: No vehicle speed pulses.
Diagnostic screen "Car Status," VSP Navi=0.
If short to ground: No vehicle speed pulses.
Diagnostic screen "Car Status," VSP Navi=0.
7 RED
DIAG P
(Diagnostic
positive)
Service check
signal for
navigation system
5 - 6 V If open: No effect on system.
If short to ground: System goes into diagnostic
mode.
8 ORN DIAG N
(Diagnostic
negative)
Ground for service
check signal
0 V If open: No effect on system.
If short to ground: No effect on system.
23-98