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Honda Ridgeline. Manual - part 535

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−

GPS icon is white or not shown

YES

23-106

Navigation System

Symptom Troubleshooting (cont’d)

NOTE:

• Make sure the vehicle is parked outside and away

from buildings.

• Refer to GPS Information (see page 23-127) for

realtime satellite reception display.

• With good reception, the icon is normally green.

1. Check for metallic window tint on the windshield

and electronic aftermarket accessories (possibly
hidden) mounted near the GPS antenna or the
navigation unit.

Remove tint or the accessories and

recheck.

Go to step 2.

2. Go into the Diagnostic Menu and use the ‘‘Navi

System Link’’ test (see page 23-121) to check the
GPS antenna.

Use the ‘‘Navi ECU’’ test under Unit Check

(see page 23-124) to check for a kinked, crushed, or
disconnected GPS antenna wire. If necessary, try a
known-good GPS antenna. If icon is still red,
replace the navigation unit (see page 23-139).

Check that nothing is blocking the GPS

antenna located behind the gauge assembly and
recheck. Substitute a known-good navigation unit,
and recheck.

• If the system is gone, replace the GPS antenna.
• If the system is still present, substitute a known-

good navigation unit and recheck. If the
symptom is gone, replace the original navigation
unit (see page 23-139).

Is ther e metallic window tint or electr onic
accessor ies?

Is the ‘‘GPS Ant’’ icon r ed?

０８

０９

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＋

−

Voice guidance cannot be heard is broken up,
or there is too much static

YES

23-107

NAVIGATION UNIT CONNECTOR B (14P)

RG L (

)

(WHT)

RG GND
(BLU/RED)

RG SHIELD GND
(LT GRN)

AUDIO UNIT CONNECTOR A (20P)

NAVIGATION UNIT CONNECTOR B (14P)

RG L (

) (WHT)

NOTE:

• Always check that the volume setting and voice

feedback are turned ON.

• Always check the connectors for poor connections or

loose terminals.

• Before troubleshooting, make sure you have the

audio system and the navigation system anti-theft
codes.

• After troubleshooting, enter the anti-theft codes for

the audio system and the navigation system.

• Make sure the correct colored DVD and DVD version

are installed.

• Inspect the DVD for damage.

1. Press the display unit SET-UP button.

2. Check the volume setting for the navigation system.

Set the volume to an audible level.

Go to step 3.

3. Check the radio operation.

Go to step 4.

Troubleshoot the audio system.

4. Go into the Diagnostic Menu and use the ‘‘Navi

System Link’’ test (see page 23-121) to check the
radio.

Troubleshoot the audio system.

Go to step 5.

5. Turn the ignition switch OFF.

6. Disconnect the navigation unit connector B (14P)

and the audio unit connector A (20P).

7. Check for continuity between body ground and

navigation unit connector B (14P) terminals No. 5,
No. 11, No. 12 individually.

Replace the affected shielded harness.

Go to step 8.

8. Check for continuity between navigation unit

connector B (14P) terminal No. 5 and the audio unit
connector A (20P) terminal No. 13.

Go to step 9.

There is an open in the circuit between the

navigation unit and audio unit. Check for poor
connections or loose terminals at the audio and
navigation units. If no poor connection or loose
terminal is found, replace the affected shielded
harness.

(cont’d)

Wire side of female terminals

Is it set to OF F ?

Can you hear the r adio?

Is the ‘‘Radio’’ icon r ed?

Is ther e continuity?

１０

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−

YES

Voice control does not work/respond

23-108

Navigation System

Symptom Troubleshooting (cont’d)

AUDIO UNIT CONNECTOR A (20P)

NAVIGATION UNIT CONNECTOR B (14P)

RG GND (BLU/RED)

9. Check for continuity between navigation unit

connector B (14P) terminal No. 12 and the audio
unit connector A (20P) terminal No. 12.

Go to step 10.

There is an open in the circuit between the

10. Substitute a known-good audio unit, and recheck.

Replace the audio unit.

Replace the navigation unit (see page 23-139).

NOTE:

• Always make sure that the correct DVD color and

version are installed.

•

• Before assuming that a voice complaint is hardware

related, ensure that the voice control system is being
operated correctly.
– Make sure you are on the correct screen when

trying to issue a voice command. For instance, the
command ‘‘Find the nearest Italian Restaurant’’
only works on a Map screen. (See the Navigation
System Manual for a complete list of allowed voice
commands for the information being displayed.)

– Close the windows and sunroof.
– Set the fan speed to low (1 or 2).
– Adjust the air flow from the air conditioning vents

so that they do not blow against the microphone on
the ceiling.

– Pause after pressing the TALK button, then give a

voice command clearly in a natural speaking voice.
If the system cannot recognize your command,
speak louder.

– If the microphone picks up voices other than yours,

the system may not interpret your voice commands
correctly.

– If you speak a command with something in your

mouth, or your voice is too husky, the system may
misunderstand your command.

• Always check the connectors for poor connections or

loose terminals.

• Check for a loose roof console microphone; if it’s

loose, tighten it.

• Before troubleshooting, make sure you have the

audio system and the navigation system anti-theft
codes.

• After troubleshooting, enter the anti-theft codes for

the audio system and the navigation system.

• Determine if the problem only happens to one person,

or everyone who uses the system.

• If the system only has a problem with one person’s

voice, this should be considered a system limitation.

Wire side of female terminals

Is ther e continuity?

Is the system OK ?

Check any official Honda service website for more
service information about the navigation system.

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−

YES

Vehicle position icon constantly leaves road,
moves erratically, or is very far from actual
position

23-109

Go to step 2.

Check the operation of the voice control

system (see the Navigation System Manual) and
compare system operation with a known-good
vehicle.

Check for a loose front map light

(microphone) assembly. If OK, check for an open or
short to ground on navigation unit connector B
(14P) terminals No. 6 and No. 14. If the wire is OK,
substitute a known-good microphone assembly.

NOTE:

• This is not the same condition as when driving off-

road (or on a fire or logging road). This condition is
caused by a loss of map matching from a bad sensor
input. Check for aftermarket or other objects that can
block the GPS signal. Always perform Map matching
(see page 23-68), before proceeding with the
troubleshooting.

• Always make sure that the correct DVD color and

version are installed.

•

1. Check the GPS icon on the navigation picture.

Do the troubleshooting for GPS icon is white

or not shown (see page 23-106).

Go to step 2.

The problem may be a normal characteristic.

Check to see if the problem occurs in the same
place. If it does, the problem could be in the
database. Compare to a known-good vehicle under
the same conditions. If you can duplicate the
problem, report it. Refer to the Customer
Assistance section of the Navigation User’s Guide,
‘‘Reporting Errors’’.

If the problem is the yaw rate sensor, replace

the navigation unit (see page 23-139). If the
problem is the vehicle speed pulse, troubleshoot
the vehicle speed signal circuit.

Is the micr ophone oper ational?

Is the GPS icon on the map scr een?

Ar e the yaw r ate sensor and vehicle speed pulse
OK ?

Ar e the T ALK and BACK buttons oper ational?

−Check for an open or short to ground on

navigation unit connector B (14P) terminal
No. 10.

Check any official Honda service website for more
service information about the navigation system.

Go into the Diagnostic Menu and use the Mic
Level test under Functional Setup (see page23-
131) to check the operation of the TALK and
BACK buttons.

Use the Mic Level diagnostic under Functional
Setup (see page 23-131) to check the operation of
the microphone.

Go into the Diagnostic Menu and use the Yaw
Rate test (see page 23-129) to check the yaw rate
sensor.

Go into the Diagnostic Menu and use the Car
Status test (see page 23-126) to check the vehicle
speed pulse.

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