Acura CSX. Manual — part 585

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ＳＮＲ９Ａ０ＫＪ１０３００００００００ＦＡＡＴ１７

−

−

−

−

−

−

−

−

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

23-57

23-57

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).

Is the volume level too high, or too low?

Is the volume level still too high, or too low?

Does the audio inf or mation display pr oper ly?

Does the r adio station change?

08/08/21 14:04:45 61SNR030_230_0060

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＊２９

ＳＮＲ９ＡＮＤＪ１０３００００００００ＦＡＡＴ１８

−

−

＋

−

−

−

−

−

−

−

−

Navigation unit button illumination does not
work (with navigation)

YES

NO

YES

NO

YES

NO

YES

NO

23-58

Audio System

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 terminals

Ar e the buttons illuminated?

Ar e the buttons illuminated?

Is ther e continuity?

Is ther e batter y voltage?

08/08/21 14:05:30 61SNR030_230_0061

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＊１４

ＳＮＲ９ＡＮＪＪ１０３００００００００ＦＡＡＴ１９

−

−

＋

−

−

−

−

−

−

−

−

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

related to the audio 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 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

Ar e the buttons illuminated?

Ar e the buttons illuminated?

Is ther e continuity?

Is ther e batter y voltage?

08/08/21 14:05:31 61SNR030_230_0062

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ＳＮＲ９ＡＮＪＪ１０３００００００００ＦＡＡＴ２０

＋

−

−

−

−

−

−

−

−

−

Display does not dim or brighten with
dimmer (without navigation)

YES

NO

YES

NO

YES

NO

YES

NO

23-60

Audio System

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 br ighten nor mally as
you r otate the dial?

Reconnect audio unit connector A ( 17 P), and
r echeck the symptom; does it still appear ?

Does the voltage change?

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