Acura CSX. Manual — part 625

＊１９

＊２０

−

−

−

−

Stereo amplifier connector

Wire color

YES

NO

Navigation

unit connector

Stereo

amplifier

connector

Wire color

YES

NO

23-213

STEREO AMPLIFIER CONNECTOR B (14P)

STEREO AMPLIFIER CONNECTOR B (14P)

NAVIGATION UNIT CONNECTOR A (24P)

29. Check for continuity between stereo amplifier

connector B (14P) and body ground according to
the table. Then check for continuity between the
same terminals listed in the table and stereo
amplifier connector B (14P) terminal No. 9 (the
harness shield).

B3

BLK

B10

WHT

Short in the wire between the stereo

amplifier and the navigation unit. Replace the
affected shielded harness.

Go to step 30.

30. Check for continuity between navigation unit

connector A (24P) and stereo amplifier connector B
(14P) according to the table.

A10

B10

WHT

A11

B3

BLK

Go to step 31.

Open in the wire between the navigation unit

and the stereo amplifier. Replace the affected
shielded harness.

Wire side of female terminals

Wire side of female terminals

Wire side of female terminals

Is ther e continuity?

Is ther e continuity?

08/08/21 14:10:47 61SNR030_230_0216

＊２１

＊２２

−

−

−

−

Stereo amplifier connector

Wire color

YES

NO

Navigation

unit connector

Stereo

amplifier

connector

Wire color

YES

NO

23-214

Audio System

STEREO AMPLIFIER CONNECTOR B (14P)

STEREO AMPLIFIER CONNECTOR B (14P)

NAVIGATION UNIT CONNECTOR A (24P)

31. Check for continuity between stereo amplifier

connector B (14P) and body ground according to
the table. Then check for continuity between the
same terminals listed in the table and stereo
amplifier connector B (14P) terminal No. 12 (the
harness shield).

B6

LT GRN

B13

PUR

Short in the wire between the stereo

amplifier and the navigation unit. Replace the
affected shielded harness.

Go to step 32.

32. Check for continuity between navigation unit

connector A (24P) and stereo amplifier connector B
(14P) according to the table.

A6

B13

PUR

A7

B6

LT GRN

Substitute a known-good navigation unit

(see page 23-355), and recheck. If the symptom/
indication goes away, replace the original
navigation unit. If the symptom is still present,
substitute a known-good stereo amplifier, and
recheck. If the symptom/indication goes away,
replace the original stereo amplifier (see page
23-259).

Open in the wire between the navigation unit

and the stereo amplifier. Replace the affected
shielded harness.

Wire side of female terminals

Wire side of female terminals

Wire side of female terminals

Is ther e continuity?

Is ther e continuity?

08/08/21 14:10:47 61SNR030_230_0217

ＳＮＲ９ＡＮＫＪ１０３００００００００ＦＡＡＴ０９

−

−

−

−

−

−

−

−

No sound is heard from the speaker(s)
(display is normal) (without navigation)

YES

NO

YES

NO

YES

NO

YES

NO

23-215

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.
• Before performing symptom troubleshooting, do the

power switch will not turn on troubleshooting
(see page 23-203).

• For vehicles with factory installed audio, do the self-

diagnostic function, speaker check (see page 23-192)
to help isolate the speaker.

1. Turn the ignition switch to ON (II).

2. Check that the volume button is not set to the MIN

level.

Raise the volume level, and recheck the

function.

Go to step 3.

3. Do the speaker check mode in the self-diagnostic

function (see page 23-192).

Speaker(s) failed the test:

• If at least one speaker is OK, go to step 4.
• If all speakers fail to sound, go to step 7.

Speakers all work, but sound quality is poor:

• If the sound is poor only with AM or FM, go to

poor AM or FM radio reception or interference
(see page 23-199).

• If the sound is poor only with disc.

– Try several known- good disc in the audio unit.
– If the sound quality is normal, the original disc

is faulty.

– If the sound quality is still poor, replace the

audio unit.

• If the sound is poor in all modes, go to sound

quality diagnosis (see page 23-251).

4. Turn the ignition switch to LOCK (0).

5. Remove the speaker(s) with no sound (see page

23-259), and disconnect its connector.

6. Check the speaker 2P connector for a loose or poor

connection.

Go to step 7.

Operation is normal.

7. Make sure the ignition switch is in LOCK (0).

8. Remove the speaker(s) with no sound (see page

23-259), and disconnect its connector.

9. Measure the resistance between terminals No. 1

and No. 2 of the speaker connector.

Go to step 10.

Faulty speaker(s).

10. Remove the audio unit (see page 23-256).

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.

Is it at MIN level?

Do any or all of the speaker s f ail to sound?

Reconnect the speaker 2P connector and r echeck
the symptom; does it still f ail?

Is ther e about 4

?

08/08/21 14:10:47 61SNR030_230_0218

＋

−

＋

−

＋

−

＋

−

＋

−

＋

−

＋

−

＋

−

１３

１４

−

−

−

−

Speaker

Terminal

Wire color

YES

NO

Speaker

Terminal

Wire color

YES

NO

23-216

Audio System

AUDIO UNIT CONNECTOR A (17P)

AUDIO UNIT CONNECTOR A (17P)

11. Measure the resistance between following

terminals of audio unit connector A (17P).

Driver’s door speaker,
Left tweeter

A12 (

)

LT GRN

A3 (

)

PNK

Front passenger’s
door speaker,
Right tweeter

A15 (

)

GRY

A7 (

)

BRN

Left rear speaker

A11 (

)

YEL

A2 (

)

BRN

Right rear speaker

A16 (

)

BLU

A8 (

)

ORN

Go to step 12.

Repair open or short in the wires between the

audio unit and the speaker(s).

12. Check for continuity between body ground and the

following terminals of audio unit connector A (17P).

Driver’s door speaker,
Left tweeter

A12 (

)

LT GRN

A3 (

)

PNK

Front passenger’s
door speaker,
Right tweeter

A15 (

)

GRY

A7 (

)

BRN

Left rear speaker

A11 (

)

YEL

A2 (

)

BRN

Right rear speaker

A16 (

)

BLU

A8 (

)

ORN

Repair short to body ground in the wire(s)

between the audio unit and the speaker(s).

Substitute a known-good audio unit (see page

23-256), and recheck. If the symptom/indication
goes away, replace the original audio unit.

Wire side of female terminals

Wire side of female terminals

Is ther e about 4

?

Is ther e continuity?

08/08/21 14:10:48 61SNR030_230_0219