Acura RL (1996-2004 year). Manual — part 297
Voice guidance cannot be heard
Diagnostic Test: Navigation System Link
NOTE:
• Always check the connectors for poor connections or
loose terminals.
• Before troubleshooting, write down the customer's
radio station presets, and get the radio and naviga-
tion system anti-theft codes.
• After troubleshooting, enter the radio and navigation
system anti-theft codes, and the radio station presets.
1 . Press the display unit A/C INFO button, and select
"set-up".
2. Check the volume setting for the navigation system.
Is it set OFF?
YES—Set the volume to an audible level.
NO—Go to step 3.
3. Check the radio operation.
Can you hear the radio?
YES—Go to step 4.
the audio system.
4. Go into the Diagnostic mode and use the "Navi
System Link" diagnostic (see page
) to check
the radio.
Is "Radio" icon red?
the audio system.
NO—Go to step 5.
Is there continuity?
YES—Replace the affected shielded harness.
NO—Go to step 8.
(cont'd)
5. Turn the ignition switch OFF.
6. Disconnect the navigation unit connector B (14P).
7. Check for continuity between body ground and navi-
gation unit connector B ( 1 4 P ) terminals No. 5 and No.
12 individually.
Main Menu
Table of Contents
Navigation System
Symptom Troubleshooting (cont'd)
8. Check for continuity between navigation unit connec-
tor B ( 1 4 P ) terminal No. 5 and the audio unit connec-
tor A (20P) terminal No. 13.
NAVIGATION UNIT CONNECTOR B (14P>
RG L (+) (WHT)
AUDIO UNIT CONNECTOR A (20P)
Wire side of female terminals
Is there continuity?
YES—Go to step 9.
NO—There is an open in the circuit between the navi-
gation unit and audio unit. Check for poor connec-
tions or loose terminals at the audio and navigation
units. If a poor connection or loose terminal is found,
replace the affected shielded harness.
9. Check for continuity between navigation unit connec-
tor B ( 1 4 P ) terminal No. 1 2 and the audio unit connec-
tor B ( 1 4 P ) terminal No. 8.
NAVIGATION UNIT CONNECTOR B (14P)
Wire side of female terminals
Is there continuity?
YES—Go to step 10.
NO—There is an open in the circuit between the navi-
gation unit and the audio unit. Check for poor con-
nections or loose terminals at the audio and naviga-
tion units. If a poor connection or loose terminal is
found, replace the affected shielded harness.
10. Substitute a known-good audio unit, and recheck.
Is the system OK?
YES—Replace the audio unit.
NO—Replace the navigation unit
(see page
Main Menu
Table of Contents
Voice control does not work
Diagnostic Test: Navigation System Link and
Functional Setup
NOTE:
• Always check the connectors for poor connections or
loose terminals.
• Before troubleshooting, write down the customer's
radio station presets, and get the radio and naviga-
tion system anti-theft codes.
• After troubleshooting, enter the radio and navigation
system anti-theft codes, and the radio station presets.
Before assuming that a voice control 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 com-
mand "Find the nearest Italian Restaurant" only
works on a Map screen. (See the Navigation Owner's
manual for a complete list of allowed voice com-
mands 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 dashboard vents so that
they do not blow against the microphone on the
celling.
• Pause after pressing the TALK button, then give a
voice command in a clear, 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 either too high or too husky,
the system may misinterpret your command.
1 . Go into the Diagnostic mode and use the "Mic Level"
diagnostic the under Functional Setup (see page
to check the operation of the TALK and BACK but-
tons.
Are the TALK and BACK buttons operational?
YES—Go to step 2.
NO—Check for an open or short to ground on naviga-
tion unit connector B ( 1 4 P ) terminal No. 10.
2. Use the "Mic Level" diagnostic under Functional
) to check the operation of the
microphone.
Is the microphone operational?
YES—Check the operation of the voice control sys-
tem (See the Navigation System Owner's Manual).
NO—Check for a loose or missing microphone assembly.
If OK, check for an open or short to ground on navigation
unit connector B (14P) terminals No. 6 and No. 14.
Cursor constantly leaves road
Diagnostic Test: Yaw Rate and Car Status
1 . Check the GPS icon on the navigation picture.
Is the GPS icon white?
YES—Do the troubleshooting for GPS icon is white
NO—Go to step 2.
2. Go into the Diagnostic mode and use the "Yaw Rate"
diagnostic (see page
) to check the yaw rate
sensor.
3. Go into the Diagnostic mode and use the "Car
) to check the vehi-
cle speed pulse.
Are the yaw rate sensor and vehicle speed pulse OK?
YES—The problem may be normal. Check to see if
the problem occurs in the same place. If it does, the
problem could be in the database. Go to step 4.
NO—If the problem is the yaw rate sensor, replace
). If the problem is
the vehicle speed pulse, troubleshoot the vehicle
speed signal circuit.
4. Substitute a known-good navigation unit and check
to see if the problem occurs in the same place.
Does the problem occur in the same place?
YES—The problem is in the database. Report the
problem according to the Navigation System
Owner's Manual under "Reporting Errors".
NO—Replace the navigation unit
(see page
Main Menu
Table of Contents
Navigation System
Symptom Troubleshooting (cont'd)
DVD screen error messages
Diagnostic Test: Car Status
NOTE:
• Check the Navigation System Owner's Manual for a
list of common DVD screen error messages and the
probable cause.
• Go into the Diagnostic mode and use the "Car
) to check the sta-
tus of the DVD lid.
1 . Check the DVD-ROM reading surface for scratches.
Are there scratches?
YES—Replace the DVD-ROM (see page
).
NO—If the problem occurs occasionally when the
system is cold, this is normal. If the problem occurs
frequently when driving, replace the navigation unit
(see page
).
Navigation cannot control A/C
Diagnostic Test: Navigation System Link
NOTE:
• Always check the connectors for poor connections or
loose terminals.
• Before troubleshooting, get the navigation system
anti-theft codes.
• After troubleshooting, enter the navigation system
anti-theft codes.
1 . Go into the Diagnostic Mode and perform the
System Link" check (see page
).
Is "Air-con " icon red?
YES—Do the climate control system
troubleshooting.
NO—Check for an open or short to ground between
display unit connector A (5P) terminals No. 2, No. 3,
No. 4 and climate control unit (12P) connector termi-
nals No. 12, No. 15, No. 4. If OK, check the climate
control system for normal operation. If the climate
control system works properly, substitute a known-
good display unit and recheck.
23-36
Main Menu
Table of Contents
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