Acura RL (1996-2004 year). Manual — part 675
Troubleshooting
'00 - 01 Models (cont'd)
Satellite mark in the GPS mark is not indicated
Check for accessories:
Check for electronic aftermarket
accessories mounted near the GPS
antenna or the navigation unit
Are there any electronic
accessories?
Disable the accessories and
recheck.
YES
NO
Picture diagnosis:
Perform the System Links check
under picture diagnosis (see
page
).
• Check that nothing is blocking
the GPS antenna located under
the package shelf.
•Recheck where nothing can
block the GPS satellite signal.
NO
Is "NG" indicated?
Repair as indicated by the System
Links check.
YES
Main Menu
Table of Contents
Audio driving instructions cannot be heard
Check the audio driving instruc-
tions set up:
1. Push the display unit MENU
key, and select "set-up".
2. Check the audio driving
instruction volume setting.
Is it set to OFF?
YES
NO
Set the volume to an audible
level.
Check for a short to body ground
in the RG circuit:
1. Turn the ignition switch OFF.
2. Disconnect the navigation
unit connector B (16P) and
audio unit connector C (12P).
3. Check for continuity between
body ground and navigation
unit connector B (16P) terminal
No. 9 and No. 10 individually.
Is there continuity?
There is a short to body ground
between the audio unit and the
navigation unit. Replace the
affected shielded harness.
YES
NO
Check for an open in the RG L+
circuit:
Check for continuity between the
navigation unit connector B (16P)
terminal No. 9 and the audio unit
connector C (12P) terminal No. 4.
Is there continuity?
NO
There is an open between the
audio unit and the navigation
unit. Replace the affected shielded
harness.
YES
Check for a short to body ground
in the MUTE circuit:
1. Turn the ignition switch OFF.
2. Disconnect the navigation
unit connector B (16P) and
audio unit connector C (12P).
3. Check for continuity between
body ground and navigation
unit connector B (16P) terminal
No. 3.
Is there continuity?
NO
(To page
YES
Repair short to body ground in
the wire between the navigation
unit and the audio unit.
Wire side of female terminals
NAVIGATION UNIT CONNECTOR B (16P)
MUTE
Wire side of female terminals
AUDIO UNIT CONNECTOR C (12P)
NAVIGATION UNIT CONNECTOR B (16P)
Wire side of female terminals
NAVIGATION UNIT CONNECTOR B (16P)
Main Menu
Table of Contents
YES
Is there continuity?
NO
Repair open in the wire between
the navigation unit and the audio
unit.
Check for an open in the AMP
SW +B circuit (audio unit side):
Check for continuity between the
navigation unit connector A (12P)
terminal No. 8 and the audio unit
connector A (16P) terminal No. 6.
Is there continuity?
Repair short to body ground in
the wire between the navigation
unit, the audio unit and the
amplifier unit.
YES
NO
Check for a short to body ground
in the AMP SW +B circuit:
1. Disconnect the navigation
unit connector A (12P), the
audio unit connector A (16P)
and the amplifier unit connec-
tor B (12P).
2. Check for continuity between
the navigation unit connector
A (12P) terminal No. 8 and
body ground.
Is there continuity?
There is an open between the
audio unit and the navigation
unit. Replace the affected shielded
harness.
Check for an open in the GND RG
circuit:
Check for continuity between the
navigation unit connector B (16P)
terminal No. 10 and audio unit
connector C (12P) terminal No. 10.
NO
YES
Repair open in the wire between
the navigation unit and the
audio unit.
NO
Is there continuity?
YES
Check for an open in the MUTE
circuit:
Check for continuity between the
navigation unit connector B (16P)
terminal No. 3 and the audio unit
connector C (12P) terminal No. 7.
(From page
'00 - 01 Models (cont'd)
Troubleshooting
NAVIGATION UNIT CONNECTOR B (16P)
MUTE
AUDIO UNIT CONNECTOR C (12P)
MUTE
Wire side of female terminals
NAVIGATION UNIT CONNECTOR B (16P)
AUDIO UNIT CONNECTOR C (12P)
NAVIGATION UNIT CONNECTOR A (12P)
Wire side of female terminals
GND RG
Wire side of female terminals
NAVIGATION UNIT CONNECTOR A (12P)
AUDIO UNIT
CONNECTOR A (16P)
AMP SW +B
AMP SW +B
Wire side of female terminals
AMP SW +B
Main Menu
Table of Contents
Replace the navigation unit.
(From page
Check for an open in the AMP SW
+B circuit (amplifier unit side):
Check for continuity between the
navigation unit A (12P) connector
terminal No. 8 and the amplifier
unit connector B (12P) terminal
No. 11.
Is there continuity?
NO
Repair open in the wire between
the navigation unit and the
amplifier unit.
YES
Check the audio unit:
Substitute a known-good audio
unit and recheck.
Is the system OK?
YES
Replace the audio unit.
NO
Check the amplifier unit:
Substitute a known-good amplifier
unit and recheck.
Replace the amplifier unit.
YES
Is the system OK?
NO
NAVIGATION UNIT CONNECTOR A (12P)
AMP SW +B
AMPLIFIER UNIT
CONNECTOR B (12P)
AMP SW +B
Wire side of female terminals
Main Menu
Table of Contents
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