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Acura CSX. Manual - part 628

＊２３

＊２４

ＳＮＲ９ＡＮＧＪ１０３００００００００ＦＡＡＴ１８

−

＋

−

Navigation unit button illumination does not
work (with navigation)

YES

23-225

NAVIGATION UNIT CONNECTOR A (24P)

ILL

(RED)

GAUGE CONTROL MODULE (TACH) 36P CONNECTOR

ILL

(RED)

NAVIGATION UNIT CONNECTOR A (24P)

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 the navigation unit connector A
(24P).

Go to step 4.

4. Check the illumination of several other buttons not

related to 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 (24P).

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 (24P) 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 (24P)
terminal No. 13 and body ground.

Check the connections at navigation unit

connector A (24P). If all connections are OK, replace
the navigation unit (see page 23-355).

Repair open in the wire between the under-

dash fuse/relay box and the navigation unit.

Wire side of female terminals

Ar e the buttons illuminated?

Is ther e continuity?

Is ther e batter y voltage?

08/08/21 14:10:50 61SNR030_230_0228

＊２５

＊２６

ＳＮＲ９ＡＮＫＪ１０３００００００００ＦＡＡＴ１９

−

＋

−

Audio unit button illumination does not
work (without navigation)

YES

23-226

Audio System

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 23-256).

Repair open in the wire between the under-

dash fuse/relay box and the audio unit.

Wire side of female terminals

Ar e the buttons illuminated?

Is ther e continuity?

Is ther e batter y voltage?

08/08/21 14:10:50 61SNR030_230_0229

＊１１

ＳＮＲ９ＡＮＫＪ１０３００００００００ＦＡＡＴ２０

−

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

YES

23-227

AUDIO UNIT CONNECTOR E (14P)

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 23-256).

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 23-256), 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 23-256).

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?

08/08/21 14:10:51 61SNR030_230_0230

ＳＮＲ９Ａ０ＤＪ１０３００００００００ＦＡＡＴ２１

ＳＮＲ９Ａ０ＤＪ１０３００００００００ＦＡＡＴ２２

−

Audio disc does not load

Audio disc does not eject

YES

23-228

Audio System

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 23-229).

Go to step 2.

2. Insert another disc.

The original disc is faulty.

• With navigation: Replace the navigation unit

(see page 23-355).

• Without navigation: Replace the audio unit

(see page 23-256).

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

23-202).

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 23-355).

• Without navigation: Replace the audio unit

(see page 23-256).

Does the disc load?

Does the system tur n on?

Does the disc eject nor mally?

08/08/21 14:10:51 61SNR030_230_0231

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