Content .. 538 539 540 541 ..

Honda Ridgeline. Manual - part 540

１６

１７

１８

PC Card info

Hard Key

Car Status

23-126

Navigation System

System Diagnostic Mode (cont’d)

PC Card Information

Return

PC Card is not inserted.

Return

Manufacturer

xxxxxx

Product Name

xxxxxxx

Hard Key

Return

MENU

MAP/GUIDE

INFO

AUDIO

CANCEL

ZOOM IN

ZOOM OUT

Keep Pushing to Return.

There is no PC Card in the PC slot, and the screen
should say, ‘‘PC Card is not inserted’’. Do not insert any
card or object into the slot.

If the factory provides a PC card and instructs you to
insert a card, then the screen displays the Manufacturer,
and Product Name as shown in the following screen.

This diagnostic checks the status of each of the hard
buttons surrounding the navigation display. When you
press each hard button, the corresponding item on the
screen should flash ‘‘blue’’. Touch the return key, or
press and hold the joystick to exit.

Use this screen to confirm that navigation unit is
properly receiving input signals. Signals equal to (0) are
OFF, and signals equal to (1) are ON. If the value on the
display does not match the actual vehicle status, then
check the wire carrying the signal.

• VSP-Vehicle Speed Pulse from PCM

(Pin 6 of 8-Pin C-connector)
a) OFF (0) when vehicle is not moving
b) ON (1) when vehicle is moving

The VSP comes from the PCM as a dedicated signal.
Internally, 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 ‘‘Level’’ gradually increases from 0
to 10.

• BACK-Reverse indication from taillight relay

(Pin 5 of 8-Pin C-connector)
a) OFF (0) when shift lever is in any position other
than reverse
b) ON (1) when shift lever is in reverse

The Back signal is used by the navigation unit to allow
the map screen to show the VP moving backwards
when in reverse and to trigger the optional rear view
camera. This signal is needed because the Speed Pulse
does not provide any directional information to the
system.

• ILL CANCEL

a) OFF (0) when the gauge assembly brightness
control is not set to maximum brightness.
b) ON (1) when the gauge assembly brightness knob
is at full bright.

The illumination cancel signal comes from the HVAC
unit. The HVAC unit gets the signal off of B-CAN from
the gauge assembly and sends it to the Navi ECU using
the U-ART communication bus between A/C and Navi
(Pins 4, 14, and 15 in the 20-Pin A navigation control
unit connector).

１９

［］

［

］

GPS Information

23-127

Car Status

Return

VSP

BACK

ILL CANCEL

ILL

DVD Lid

Close

• ILL-Illumination Indication

(Pin 12 of navigation unit 20-Pin A-connector)
a) OFF (0) when parking lights, or headlights are off
b) ON (1) when parking lights, or headlights are on

The navigation unit uses the signal to determine
whether to put the navigation screen into the Day or
Night brightness mode. (Setup screen 1)

• DVD Lid-senses if the DVD door is open

a) (Close) when the door is closed
b) (Open) when the door is open

The navigation unit has a microswitch to detect this. If
open is indicated when the door is closed, replace the
navigation unit.

This screen shows the current status of GPS reception.
The circular diagram shows the current location of the
GPS satellites (yellow numbers) as they would appear
in the sky. The outer circle represents the horizon
(0 degrees elevation). The middle and inner circles
represents 30 and 60 degrees respectively. The very
center of the diagram (90 degrees elevation) is directly
overhead. Nearby obstructions, like tall buildings, will
block satellites in that direction. That is why it is
necessary to be in an open area to troubleshoot GPS
reception issues. The satellites shown on the diagram
correspond to the ‘‘PRN’’ number in the ‘‘GPS Details’’
screen. There are always 24 ‘‘active’’ GPS satellites in
orbit. Because satellites fail, and have to be removed
from service, spares are always parked in orbit, ready
to be activated. This is why the PRN (satellite ID
number) can be greater than 24.

NOTE:

• To use this screen for troubleshooting, the vehicle

should be outside, away from buildings, tall trees,
and high-tension wires for at least 10 minutes with
the engine running.

• Metallic window tinting on the front window or after-

market electronic accessories mounted near the
navigation unit, GPS antenna or navigation display
can interfere with GPS acquisition.

• The ‘‘Number of Satellites’’ box shows the number of

acquired satellites (maximum of 12). It should contain
3 or more icons. If not, troubleshoot for ‘‘GPS icon is
white or not shown’’ (see page 23-106).

• The ‘‘Current Position’’ shows latitude, longitude, and

elevation (in meters). If there are less than 4 satellites,
the elevation can be grossly inaccurate.

• The Date/Time field shows the current date, and also

a time that includes daylight savings and other
offsets entered by the customer in Setup function
‘‘Adjust Time Zone/Clock’’.

(cont’d)

＃

２０

２１

”

GPS Detail

23-128

Navigation System

System Diagnostic Mode (cont’d)

GPS Information

GPS Detail

Return

Number of Satellites

Current Position

Latitude: Nxx°xx’xx

Elevation: 0 feet

Longitude: Exxx°xx’xx

xxxx.xx.xx xx:xx:xx

Return

In Use
Search

TS:xx
AS:xx

HDop:xx.x
VDop:xx.x

Speed: x.xMi/h
Direction: x °

Date :xxxx.xx.xx
Time:xx:xx:xx

PRN

xx
xx
xx
xx
xx

xxx
xxx
xxx
xxx
xxx
xxx

AZI

xx
xx
xx
xx
xx

xxx

C/N

xxx
xxx
xxx
xxx
xxx

ACC

xx
xx
xx
xx
xx

1/2

NOTE:
Push and hold the ‘‘Map/Guide’’ button, and the ‘‘dots’’
on the diagram are replaced with the ‘‘PRN’’

(satellite

numbers). These numbers correspond to the numbers
in the ‘‘PRN’’ column on the ‘‘GPS details’’ screen.

By pressing and holding the MENU button for
10 seconds, a GPS Detail screen appears. This screen
displays real time incoming satellite positional data.
Most of the information shown on this screen is for
factory use, however some of the data can indicate
partial GPS signal interference.

• The box TS/AS and HDop/VDop is for factory use.
• The Speed and Direction information is updated in

real time when driving, and can be used to detect
intermittent speed sensor problems.

• The Date/Time Information is the same as in Setup

screen 2 ‘‘Adjust Time Zone/Clock’’.

• If the ‘‘3D’’ icon is shown above the yellow dots, this

implies that at least 4 satellites are available for map
positioning, and the ‘‘GPS’’ indicator on the map
screen will be green. See the Global Positioning
System detailed explanation in the ‘‘System
Description’’ (see page 23-80).

• If the row of data in the table below begins with a

‘‘yellow dot’’, the AZI and EL fields can be used to
locate each satellite ‘‘PRN’’

on the circular GPS

diagram (see prior screen).

−

＋ −

−

２２

Column

Description

Problem indication

Example: Vehicle stopped

Normal

Abnormal

Example: Vehicle turning

Normal

Abnormal

Yaw Rate

23-129

Yaw Rate

Return

Sensor
Offset

CCW Factor

CW Factor

x.xxxV
x.xxxV

0.0%

Set

Tuning

NOTE: The data shown in the GPS Detail screen is an
example only.

Active

Active satellites
(Yellow Dot)

If ‘‘3D’’ is missing
follow GPS icon is
white or not shown
(see page 23-106).

PRN

The satellite ID
number

The status:
0 = cannot view
or searching,
2 = acquiring

If all 0, then, follow
GPS icon is white
or not shown
troubleshooting
(see page 23-106).

AZI

Azimuth, the
angle (0

360)

clockwise from
north

Elevation from
the horizon
(90 deg is
overhead)

C/N

N/A

Healthy signal is
49

52,

no signal: 27

ACC

N/A

This diagnostic checks the yaw rate sensor in the
control unit. This device detects when the vehicle turns,
and repositions the vehicle position icon on the map
screen. For more detailed information, see the yaw rate
sensor theory of operation under ‘‘System Description’’
(see page 23-79).

• ‘‘Sensor’’ indicates the voltage output from the yaw

rate sensor. It should indicate about 2.500 V when
stopped.

• ‘‘Offset’’ is the reference voltage or standard within

the yaw rate sensor. It also should indicate about
2.500 V when stopped.

• A ‘‘sensor’’ output voltage LOWER than the ‘‘Offset’’

voltage indicates that the vehicle is turning to the
right.
A ‘‘sensor’’ output voltage HIGHER than the ‘‘Offset’’
voltage indicates that the vehicle is turning to the left.

• The yaw rate offset and sensor should both indicate

about 2.500 V when stopped. If either reads zero or
5.000 V, replace the navigation control unit.

• The yaw rate offset and sensor should be within

0.01 V of each other when stopped. The sensor value
should change relative to the offset as the car is
turned while driving. If not, replace the navigation
unit.

Offset

2.526 V

Offset

2.526 V

Sensor

2.516

2.536 V

Sensor

2.623 V

Offset

2.526 V

Offset

2.526 V

Sensor

2.678 V
(right turn)
2.478 V
(left turn)

Sensor

2.623 V
(no change on
turns)

The settings ‘‘CCW Cal Factor’’, ‘‘CW Cal Factor’’, and
‘‘Set’’ are for factory use only. THIS SHOULD NEVER BE
USED.
NOTE: Do not try to adjust the yaw rate sensor without
instructions from American Honda. See next paragraph
for tuning.

(cont’d)

Content .. 538 539 540 541 ..