Acura CSX. Manual — part 584
*04
SNR9A0KJ10300000000FAAT11
−
−
−
−
Audio unit
connector
Auxiliary jack
assembly
connector
Wire color
YES
NO
YES
NO
Audio system sound is weak or distorted
(display is normal)
23-53
23-53
AUXILIARY JACK ASSEMBLY 5P CONNECTOR
AUDIO UNIT CONNECTOR B (20P)
17. Check for continuity between audio unit connector
B (20P) and auxiliary jack assembly 5P connector
according to the table.
B3
3
BRN
B5
2
BLU
B13
4
YEL
B14
5
GRN
B15
1
WHT
Substitute a known-good auxiliary jack
assembly (see page 23-85), and recheck. If the
symptom/indication goes away, replace the
original auxiliary jack assembly. If the symptom/
indication is still present, replace the audio unit
(see page 23-80).
Open in the wire(s) between the audio unit
and the auxiliary jack assembly. Replace the
affected shielded harness.
NOTE:
• Check the vehicle battery condition first.
• Check the connectors for poor connections or loose
terminals.
1. Check for sound in each mode (AM, FM, XM, and
CD).
Intermittent failure. The system is OK at this
time. Check for loose connections at the navigation
unit, audio unit, amplifier, and each speaker.
Speakers all work, sound quality is poor.
• If the sound quality is poor only with the XM
radio, or the XM radio does not function, go to
poor or no sound with XM radio (see page 23-72).
• If the sound quality is poor only with AM or FM
radio, go to poor AM or FM radio reception or
interference (see page 23-29).
• If sound is poor in all modes, go to sound quality
diagnosis (see page 23-74).
Wire side of female terminals
Wire side of female terminals
Is ther e continuity?
Is ther e sound f r om the speaker s, and is the sound
quality nor mal in each mode?
08/08/21 14:04:44 61SNR030_230_0056
SNR9A0KJ10300000000FAAT12
SNR9A0KJ10300000000FAAT13
−
−
−
−
−
−
−
−
Radio preset memory is lost
Volume does not change
YES
NO
YES
NO
YES
NO
YES
NO
23-54
23-54
Audio System
NOTE: If only the XM stations are lost, go to XM radio
preset memory is lost (see page 23-71).
1. Set each of the radio station preset buttons.
Go to step 2.
• With navigation: Replace the navigation unit
(see page 23-155).
• Without navigation: Replace the audio unit
(see page 23-80).
2. Turn the ignition switch to LOCK (0) for 1 minute,
then turn it back to ON (II).
3. Test the preset buttons for proper recall operation.
System is normal at this time. Check the
connections at the navigation unit or audio unit.
• 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.
• Set the fader and balance positions to the center.
1. Listen for sound from the speakers.
Go to step 2.
Go to audio system sound is weak or
distorted, or no sound is heard from speaker(s)
(see page 23-39).
2. Operate the volume knob to see if the volume
changes.
Operation is normal.
• With navigation: Replace the navigation unit
(see page 23-155).
• Without navigation: Replace the audio unit
(see page 23-80).
Do each of the buttons set pr oper ly?
Do the pr eset buttons r ecall the set r adio stations?
Is the sound nor mal?
Does the volume change?
08/08/21 14:04:44 61SNR030_230_0057
−
*05
SNR9A0KJ10300000000FAAT14
−
−
−
−
−
−
−
−
Volume does not increase with speed (with
navigation)
YES
NO
YES
NO
YES
NO
YES
NO
23-55
VSP (BLU)
NAVIGATION UNIT CONNECTOR A (17P)
NOTE:
• Check the vehicle battery condition first.
• Check the connectors for poor connections or loose
terminals.
1. Verify the SVC mode setting in the navigation unit
sound set-up.
Change the setting to Mid and retest
(see page 23-6).
Go to step 2.
2. Do the self-diagnostic function for the vehicle
speed pulse indication (see page 23-23).
Substitute a known-good navigation unit
(see page 23-155), and retest. If the symptom/
indication goes away, replace the original
navigation unit.
Go to step 3.
3. Test-drive the vehicle at highway speeds, and
monitor if the volume increases.
Intermittent failure, the system is OK at this
time.
Go to step 4.
4. Remove the navigation unit (see page 23-155), and
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.
5. Drive the vehicle, and have an assistant measure
voltage at navigation unit connector A (17P)
terminal No. 13.
Replace the navigation unit (see page 23-155).
Repair open or shorts in the wire between
navigation unit connector A (17P) terminal No. 13
and ECM/PCM connector A (44P) terminal No. 29. If
no opens or shorts are found, Update the ECM/
PCM (see page 11-227) if it does not have the latest
software or substitute a known-good ECM/PCM
(see page 11-228).
Wire side of female terminals
Is the SV C set to of f ?
Does the self -diagnostic f unction indicate a V SP
signal?
Do the volume incr ease?
Is ther e a 0
5 V Pulse?
08/08/21 14:04:45 61SNR030_230_0058
−
*12
SNR9ANJJ10300000000FAAT15
−
−
−
−
−
−
−
−
Volume does not increase with speed
(without navigation)
YES
NO
YES
NO
YES
NO
YES
NO
23-56
Audio System
AUDIO UNIT CONNECTOR A (17P)
VSP (BLU)
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 if the volume increases.
Intermittent failure, the system is OK at this
time.
Go to step 2.
2. Verify the SVC mode setting in the audio unit
sound set-up.
Change the setting to Mid, and retest
(see page 23-6).
Go to step 3.
3. Do the self-diagnostic function for the vehicle
speed pulse indication (see page 23-23).
Substitute a known-good audio unit and
retest. If the symptom/indication goes away,
replace the original audio unit.
Go to step 4.
4. Remove the navigation unit (see page 23-80), and
disconnect navigation unit connector A (17P).
NOTE: Eject all the discs before removing the audio
unit to prevent damaging the CD player’s load
mechanism.
5. Drive the vehicle, and have an assistant measure
voltage at audio unit connector A (17P) terminal
No. 13.
Replace the audio unit (see page 23-80).
Repair open or shorts in the wire between
audio unit connector A (17P) terminal No. 13 and
ECM/PCM connector A (44P) terminal No. 29. If no
opens or shorts are found, Update the ECM/PCM
(see page 11-227) if it does not have the latest
software or substitute a known-good ECM/PCM
(see page 11-228).
Wire side of female terminals
Does the volume incr ease?
Is the SV C set to of f ?
Does the self -diagnostic f unction indicate a V SP
signal?
Is ther e a 0
5 V Pulse?
08/08/21 14:04:45 61SNR030_230_0059
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