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Acura CSX. Manual - part 623

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ＳＮＲ９ＡＮＧＪ１０３００００００００ＦＡＡＴ０６

−

Audio unit power switch will not turn off
(with navigation)

YES

23-205

NAVIGATION UNIT CONNECTOR A (24P)

ACC RADIO (PUR)

NOTE:

• Check for aftermarket accessories plugged into the

vehicle’s accessory power sockets.

• Check the connectors for poor connections or loose

terminals.

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

2. Push the power switch OFF or turn the ignition

switch to LOCK (0) to see if the navigation unit
turns OFF.

Operation is normal.

Go to step 3.

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

4. Remove the navigation unit (see page 23-355).

5. 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.

6. Measure the voltage between navigation unit

connector A (24P) terminal No. 14 and body ground.

Check for short to power on PUR wire.

Replace the navigation unit (see page 23-355).

Wire side of female terminals

Is the navigation unit OF F ?

Is ther e batter y voltage?

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−

Audio unit power switch will not turn off
(without navigation)

No sound is heard from the speaker(s)
(display is normal) (with navigation)

YES

23-206

Audio System

AUDIO UNIT CONNECTOR A (17P)

ACC RADIO (PUR)

NOTE:

• Check for aftermarket accessories plugged into the

vehicle’s accessory power sockets.

• Check the connectors for poor connections or loose

terminals.

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

2. Push the power switch OFF or turn the ignition

switch to LOCK (0) to see if the audio unit turns OFF.

Operation is normal.

Go to step 3.

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

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

5. 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.

6. Measure the voltage between audio unit connector

A (17P) terminal No. 14 and body ground.

Check for short to power on PUR wire.

Replace the audio unit (see page 23-256).

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 23-202).

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

2. 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 and speaker(s).

Go to step 3.

3. Check that the volume button is not set to the min

level.

Raise the volume level, and recheck the

function.

Go to step 4.

4. On the steering wheel, check the navigation talk

command.

Cancel the navigation talk command by

pressing the navigation BACK button, then recheck
the function.

Go to step 5.

Wire side of female terminals

Is the audio unit OF F ?

Is ther e voltage?

Is the sound OK in each mode?

Is it at the MIN level?

Is the navigation talk command f unction set?

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−

＋
−

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−

YES

Speaker

Terminal

Wire color

YES

23-207

NAVIGATION UNIT CONNECTOR A (24P)

5. Check to see if there is a specific speaker that has

no sound.

Speaker(s) failed the test:

• If at least one speaker is OK, go to step 6.
• If all speakers fail to sound:

– Type S model: Go to step 14.
– Except Type S model: Go to step 9.

Speakers all work, but sound quality is poor in

step 1.

• If sound is poor only with XM radio, or the XM

radio does not function, go to poor or no sound
with XM radio (see page 23-249).

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

poor AM or FM radio reception or interference
(see page 23-196).

• If the sound is poor only with disc.

– Try several known- good disc in the navigation

unit.

– If the sound quality is normal, the original disc

is faulty.

– If the sound quality is still poor, replace the

navigation unit.

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

quality diagnosis (see page 23-251).

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

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

23-259), and disconnect its connector.

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

connection.

Go to step 9.

Operation is normal.

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

10. Measure the resistance between terminals No. 1

and No. 2 of the speaker connector.

• Type S model: Go to step 20.
• Except Type S model: Go to step 11.

Faulty speaker(s).

11. Remove the navigation unit (see page 23-355).

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.

12. Measure the resistance between the following

terminals of navigation unit connector A (24P)
according to the table.

Driver’s door speaker,
Left tweeter

A23 (

)

LT GRN

A22 (

)

PNK

Front passenger’s
door speaker,
Right tweeter

A19 (

)

GRY

A18 (

)

BRN

Left rear speaker

A11 (

)

YEL

A10 (

)

BRN

Right rear speaker

A7 (

)

BLU

A6 (

)

ORN

Go to step 13.

Repair open or short in the wires between

navigation unit and the speaker(s).

Wire side of female terminals

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

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−

＋
−

＊０８

＊０９

＋

−

Speaker

Terminal

Wire color

YES

23-208

Audio System

NAVIGATION UNIT CONNECTOR A (24P)

STEREO AMPLIFIER CONNECTOR A (20P)

B AUDIO

AMP
(LT GRN)

13. Check for continuity between body ground and the

following terminals of navigation unit connector A
(24P).

Driver’s door speaker,
Left tweeter

A23 (

)

LT GRN

A22 (

)

PNK

Front passenger’s
door speaker,
Right tweeter

A19 (

)

GRY

A18 (

)

BRN

Left rear speaker

A11 (

)

YEL

A10 (

)

BRN

Right rear speaker

A7 (

)

BLU

A6 (

)

ORN

Repair short to body ground in the wire(s)

between the navigation unit and the speaker(s).

Substitute a known-good navigation unit

(see page 23-355), and recheck. If the symptom/
indication goes away, replace the original
navigation unit.

14. Measure the voltage between stereo amplifier

connector A (20P) terminal No. 10 and body ground.

Go to step 15.

Repair open in the wire between the No. 17

(15 A) fuse in the under-hood fuse/relay box and
stereo amplifier connector A (20P) terminal
No. 10.

Wire side of female terminals

Is ther e continuity?

Is ther e batter y voltage?

08/08/21 14:10:45 61SNR030_230_0211

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