Honda ACCORD HYBRID 2005 Service Manual page 2081

Car Status
This screen is used to c o n f i r m that navigation unit is
properly receiving input signals. Signals equal to (0) are
OFF, and signals equal to (1) are O N . If the value on the
display does not match the actual vehicle status, then
check the w i r e carrying the signal.
• CHG—(OBSELETE-NOT USED) Charge indicator
(Pin 3 of C-Connector)
a) OFF (0) w h e n engine is off, or alternator is not
charging
b) ON (1) w h e n engine is running
This signal was used by the previous DVD navigation
system. If CHG w a s off, then the screen was shut off
after 10 minutes of inactivity to minimize battery
c o n s u m p t i o n .
• VSP—Vehicle Speed Pulse f r o m PCM
(Pin 6 of C-connector)
a) OFF (0) w h e n vehicle is not m o v i n g
b) ON (1) w h e n vehicle is m o v i n g
The VSP comes f r o m the PCM as a dedicated signal.
Intermally, the navigation unit compares the actual VP
on the map against street data to adjust the pulse to
speed scaling factor. As this scaling factor becomes
more accurate, the " L e v e l " gradually increases f r o m 0
to 10.
• BACK—Reverse indication f r o m taillight relay
(Pin 5 of C-connector)
a) OFF (0) w h e n shift lever is in any position other
than reverse
b) ON (1) w h e n shift lever is in reverse
The Back signal is used by the navigation unit to allow
the map screen to s h o w the VP m o v i n g backwards
w h e n in reverse. This signal is needed because the
Speed Pulse has no direction indication.
• CHG (CAN)—Charge indicator f r o m PCM using F-CAN
bus (Pin 8, 18 of navigation unit A-connector)
a) OFF (0) w h e n engine is off
b) ON (1) w h e n engine is running
This signal is obtained off of the F-CAN bus. See the
Multiplex control system for t r o u b l e s h o o t i n g F-CAN.
Diagnostic trouble codes (DTCs) for the F-CAN can be
retrieved w i t h the HDS (Honda Diagnostic System).
• ILL—Illumination Indication
(Pin 5 of navigation unit A-connector)
a) OFF (0) w h e n parking lights, or headlights are off
b) ON (1) w h e n parking lights, or headlights are off
This signal is used by the navigation unit to determine
whether to put the navigation screen into the Day or
Night brightness mode. (Setup screen 1)
• DVD Lid—Senses if DVD door is open
a) (Close) w h e n door is closed
b) (Open) w h e n door is open
The navigation unit has a micro switch to detect this. If
open is indicated w h e n the door is closed, replace the
navigation unit.
• PC Card Lid—Senses if PC Card door is open
a) (Close) w h e n door is closed
b) (Open) w h e n door is open
The navigation unit has a micro switch to detect this. If
open is indicated w h e n the door is slid shut, then
replace the navigation unit. This slot is for insertion of
PC Flash m e m o r y cards for gathering diagnostic
i n f o r m a t i o n . This is for factory use only.
( Car Status ) I Return I
CHG [*] ILL [*]
VSP(NAVI) [1] BACK [*]
CHG(CAN) [*]
DVD Lid [Close] PC Card Lid [Close]
(cont'd)
23-115