Page 2337 of 2893

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Volume is too high or too low when driving
at freeway speeds Radio tuner does not change stations
YES
NO
YES
NO YES
NO
YES
NO
23-5723-57
NOTE:
Check the vehicle battery condition first.
Check the connectors for poor connections or loose terminals.
1. Test-drive the vehicle at highway speeds, and monitor volume level.
Go to step 2.
Intermittent failure, the system is OK at this
time.
2. Change the SVC mode setting in sound set-up to Mid (see page 23-6).
With navigation: Replace the navigation unit (see page 23-155).
Without navigation: Replace the audio unit (see page 23-80).
Improper SVC setting for customers sound
taste. 1. Check the audio information on the display panel.
Go to step 2.
Go to power switch will not turn on (see page
23-35).
2. Operate the tuning knob to see if the radio station changes.
Intermittent failure: the tuning knob is OK at
this time.
With navigation: Replace the navigation unit (see page 23-155).
Without navigation: Replace the audio unit (see page 23-80).
I s t he v ol ume l ev el t oo hi gh, or t oo l ow ?
I s t he v ol ume l ev el st i l l t oo hi gh, or t oo l ow ? Does the audio inf ormation display properly?
Does t he r ad i o st at i on change?
08/08/21 14:04:45 61SNR030_230_0060
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DYNOMITE -2009-
Page 2338 of 2893

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Navigation unit button illumination does not
work (with navigation)
YES
NO
YES
NO YES
NO
YES
NO
23-58Audio System
Symptom Troubleshooting (cont’d)
NAVIGATION UNIT CONNECTOR A (17P)
ILL (RED)
GAUGE CONTROL MODULE (TACH) 36P CONNECTOR ILL (RED)
NAVIGATION UNIT CONNECTOR A (17P) ILL (GRY)NOTE: Check the vehicle battery condition first.
Check the connectors for poor connections or loose terminals.
1. Turn the ignition switch to ON (II).
2. Turn the combination lighting switch to the parking light position.
3. Check the illumination of the navigation unit buttons.
Intermittent problem: the navigation unit is
OK at this time. Check for loose or poor
connections at navigation unit connector A (17P).
Go to step 4.
4. Check the illumination of several other buttons not related to the navigation system.
Go to step 5.
Troubleshoot the interior lights. Start by
checking the No. 14 (7.5 A) fuse in the under-dash
fuse/relay box. If the fuse is OK, check for an open
in the wire between the under-dash fuse/relay box
and the navigation unit.
5. Turn the ignition switch to LOCK (0).
6. Disconnect navigation unit connector A (17P). NOTE: Eject all the discs before removing the navigation unit to prevent damaging the CD player’s load
mechanism.
Remove the PC card before removing the navigation unit.
7. Disconnect gauge control module (tach) 36P connector. 8. Check for continuity between navigation unit
connector A (17P) terminal No. 1 and gauge control
module (tach) 36P connector terminal No. 14.
Go to step 9.
Repair open in the wire between the gauge
control module and the navigation unit.
9. Turn the ignition switch to ON (II).
10. With the headlight switch still on, measure the voltage between navigation unit connector A (17P)
terminal No. 10 and body ground.
Check the connections at navigation unit
connector A (17P). If all connections are OK, replace
the navigation unit (see page 23-155).
Repair open in the wire between the under-
dash fuse/relay box and the navigation unit.
Wire side of female terminals
Wire side of female terminals
Wire side of female terminalsAre the buttons illuminated?
Are the buttons illuminated? Is there continuity?
Is there battery voltage?
08/08/21 14:05:30 61SNR030_230_0061
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DYNOMITE -2009-
Page 2339 of 2893

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Audio unit button illumination does not
work (without navigation)
YES
NO
YES
NO YES
NO
YES
NO
23-59
AUDIO UNIT CONNECTOR A (17P)
ILL (RED)
GAUGE CONTROL MODULE (TACH) 36P CONNECTOR ILL (RED)
AUDIO UNIT CONNECTOR A (17P) ILL (GRY)NOTE: Check the vehicle battery condition first.
Check the connectors for poor connections or loose terminals.
1. Turn the ignition switch to ON (II).
2. Turn the combination lighting switch to the parking light position.
3. Check the illumination of the audio unit buttons.
Intermittent problem: the audio unit is OK at
this time. Check for loose or poor connections at
the audio unit connector A (17P).
Go to step 4.
4. Check the illumination of several other buttons not relatedtotheaudiosystem.
Go to step 5.
Troubleshoot the interior lights. Start by
checking the No. 14 (7.5 A) fuse in the under-dash
fuse/relay box. If the fuse is OK, check for an open
in the wire between the under-dash fuse/relay box
and the audio unit.
5. Turn the ignition switch to LOCK (0).
6. Disconnect audio unit connector A (17P). NOTE: Eject all the discs before removing the audio
unit to prevent damaging the CD player’s load
mechanism.
7. Disconnect gauge control module (tach) 36P connector. 8. Check for continuity between audio unit connector
A (17P) terminal No. 1 and gauge control module
(tach) 36P connector terminal No. 14.
Go to step 9.
Repair open in the wire between the gauge
control module and the audio unit.
9. Turn the ignition switch to ON (II).
10. With the headlight switch still on, measure the voltage between audio unit connector A (17P)
terminal No. 10 and body ground.
Check the connections at audio unit
connector A (17P). If all the connections are OK,
replace the audio unit (see page 23-80).
Repair open in the wire between the under-
dash fuse/relay box and the audio unit.
Wire side of female terminals
Wire side of female terminals
Wire side of female terminals
Are the buttons illuminated?
Are the buttons illuminated? Is there continuity?
Is there battery voltage?
08/08/21 14:05:31 61SNR030_230_0062
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Page 2340 of 2893

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Display does not dim or brighten with
dimmer (without navigation)
YES
NO
YES
NO
YES
NO YES
NO
23-60Audio System
Symptom Troubleshooting (cont’d)
AUDIO UNIT CONNECTOR A (17P)
ILL (GRY)
ILL (RED)
NOTE:
Check the vehicle battery condition first.
Check the connectors for poor connections or loose terminals.
1. Turn the ignition switch to ON (II).
2. Turn the combination light switch ON and OFF to see if the symptom can be duplicated.
Go to step 3.
Operation is normal.
3. Turn the combination light switch to OFF.
4. Rotate the illumination control dial.
Operation is normal.
Go to step 5.
5. Disconnect, and check audio unit connector A (17P) for a loose or a poor connection.
NOTE: Eject all the discs before removing the audio
unit to prevent damaging the CD player’s load
mechanism.
Go to step 6.
Operation is normal.
6. Turn the ignition switch to LOCK (0).
7. Remove the audio unit (see page 23-80). 8. Turn the ignition switch to ON (II).
9. Measure the voltage between audio unit connector
A (17P) terminals No. 1 and No. 10. Rotate the dash
brightness controller buttons to see if the voltage
changes.
Substitute a known-good audio unit
(see page 23-80), and recheck. If the symptom/
indication goes away, replace the original audio
unit. If symptom is still present, substitute a known-
good center panel display and recheck. If the
symptom/indication goes away, replace the
original center panel display (see page 23-80).
Repair open in the wire between the under-
dash fuse/relay box and the gauge control
module.
Wire side of female terminals
Is it duplicated?
Does the illumination dim and brighten normally asy ou r ot at e t he d i al ?
Reconnect aud i o uni t connect or A ( 17 P), andr echeck t he sy mpt om; d oes i t st i l l appear ? Does t he v ol t age change?
08/08/21 14:05:31 61SNR030_230_0063
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Page 2341 of 2893

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Audio disc does not load Audio disc does not eject
YES
NO
YES
NO YES
NO
YES
NO
23-6123-61
NOTE:
Check the vehicle battery condition first.
Check the connectors for poor connections or loose terminals.
Disc labels should not be used in the navigation unit or audio unit. They may damage the player
mechanism.
Make sure the disc is compatible with the system (see the owner’s manual for more information).
1. Insert a known-good disc to see if the symptom can be duplicated.
Operation is normal. If the disc loads
normally, but will not play, go to audio disc does
not play (see page 23-62).
Go to step 2.
2. Insert another disc.
The original disc is faulty.
With navigation: Replace the navigation unit (see page 23-155).
Without navigation: Replace the audio unit (see page 23-80). NOTE:
Check the vehicle battery condition first.
Check the connectors for poor connections or loose terminals.
Disc labels should not be used in the navigation unit or audio unit. They may damage the player
mechanism.
1. Turn on the audio system.
Go to step 2.
Go to power switch will not turn ON (see page
23-35).
2. Check to see if the disc ejects correctly with no binding by pushing the EJECT button.
Operation is normal.
With navigation: Replace the navigation unit (see page 23-155).
Without navigation: Replace the audio unit (see page 23-80).
Does t he d i sc l oad ?
Does t he d i sc l oad ? Does the system turn on?
Does the disc eject normally?
08/08/21 14:05:31 61SNR030_230_0064
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Page 2342 of 2893

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Special Tools Required
YES
NO
YES
NO Special Tools Required
YES
NO
YES
NO
Audio disc does not play Audio disc skips
23-6223-62Audio System
Symptom Troubleshooting (cont’d)
Diagnostics CD 07AAZ-SDBA100
NOTE:
Check the vehicle battery condition first.
Check the connectors for poor connections or loose terminals.
1. Try loading a known-good disc.
Go to step 2.
Go to audio disc does not load (see page
23-61).
2. Insert the audio diagnostic CD (T/N: 07AAZ- SDBA100) in the navigation unit or audio unit.
The original disc is faulty, or has an
unreadable format.
With navigation: Replace the navigation unit (see page 23-155).
Without navigation: Replace the audio unit (see page 23-80). Diagnostics CD 07AAZ-SDBA100
Skip Test CD 07AAZ-SDBA200 (ABEX-TCD-725B)
Skip Test CD 07AAZ-SDBA300 (ABEX-TCD-721)
1. Confirm the vehicles tires are properly inflated.
2. Check the clients CD for scratches, fingerprints, and marks.
NOTE: Do this following test with audio unit bass
and treble set to clients listening performance.
When comparing to known-good vehicles,
comparison should be performed on same model
and trim level.
3. Test drive to identify when the CD skips. The diagnostics CD (T/N: 07AAZ-SDBA100) can be used
if clients CD is not available. Use tracks 10 to 12.
Go to step 4.
Operation is normal.
4. Compare the clients CD that skips in a known-good vehicle under the same conditions.
Operation is normal.
Go to step 5.
NOTE: Do this following test with vehicle parked
and engine running.
Does t he d i sc l oad ?
Does t he d i sc pl ay ? Does t he CD sk i p? Does t he CD sk i p i n t he k now n-good v ehi cl e und ert he same cond i t i ons?
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YES
NO
YES
NO
YES
NO
YES
NO
Audio remote switch does not work properly
(with navigation)
23-6323-63
5. Insert the skip test CD (T/N: 07AAZ-SDBA300)
(ABEX-TCD-721). Play tracks 2 to 11 and note the
track number(s) where the CD starts skipping. Do
the same test on a known-good vehicle.
Operation is normal.
Go to step 6.
6. Insert the skip test CD (T/N: 07AAZ-SDBA200) (ABEX-TCD-725B), and play tracks 7 to 11 and
tracks 13 to 15 and note the track number(s) where
the CD starts skipping. Perform the same test on a
known-good vehicle.
Operation is normal.
With navigation: Replace the navigation unit (see page 23-155).
Without navigation: Replace the audio unit (see page 23-80). NOTE:
Check the vehicle battery condition first.
Check the connectors for poor connections or loose terminals.
1. Check the audio unit operation.
Go to step 2.
Replace the navigation unit (see page 23-155).
2. Test the audio remote switch (see page 23-86).
Go to step 3.
Replace the audio remote switch (see page
23-86).
3. Remove the navigation unit (see page 23-155).
(cont’d)
Does t he CD sk i p on t he same t r ack number ( s) ast he k now n-good v ehi cl e?
DoestheCDskiponsametrack number(s)asthek now n-good v ehi cl e? Is the audio unit operation OK ?
Is the audio remote switch OK ?
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AUDIO REMOTE SWITCH TABLE
YES
NO YES
NO
23-64Audio System
Symptom Troubleshooting (cont’d)
NAVIGAION UNIT CONNECTOR B (22P)
AUDIO REMOTE
GND (BRN) AUDIO REMOTE
SW (PNK) NAVIGAION UNIT CONNECTOR B (22P)
AUDIO REMOTE
GND (BRN) AUDIO REMOTE
SW (PNK)
4. Measure the resistance between navigation unit
connector B (22P) terminals No. 6 and No. 7 as
specified in the table.
Go to step 5.
Repair open or high resistance in the circuit
between the navigation unit and the audio remote
switch. If the wires are OK, replace the cable reel
(see page 24-200). 5. Check for continuity between navigation unit
connector B (22P) terminals No. 6 and No. 7 and
body ground individually.
Repair short to body ground in the circuit
between the navigation unit and the audio remote
switch. If the wires are OK, replace the cable reel
(see page 24-200).
Replace the navigation unit (see page 23-155).
Button held down VOL DOWNVOLUP CH( ) CH( ) MODE No
button
pressed
Resistance about 100about
357 about
775 about
1.7 k about
3.7 k about
10 k
Wire side of female terminals Wire side of female terminals
IstheresistanceOK?Is there continuity?
08/08/21 14:05:32 61SNR030_230_0067
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