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

WARNING: This page is about a different car, the 2013 Acura MDX, 2012 Acura MDX, 2011 Acura MDX, and 2010 Acura MDX. However, it is still accessible from the selected car via links, so may be relevant.

NOTE:

Check the vehicle battery condition first (see BATTERY TEST ).
Set the fader and balance positions to the center.
Check the connectors for poor connections or loose terminals.

Turn the ignition switch to ON (II).
Make sure the volume is not set to the MIN level, and check for sound in all modes (AM/FM, CD, XM).
Is there sound in all modes, and is the sound normal?

YES -System is OK at this time. Check for poor connections at the audio unit, speakers, and stereo amplifier.

NO -
- If there is no sound in all modes, go to step 3.
- If there is no sound in AM/FM mode, go to AM OR FM RADIO RECEPTION INTERFERENCE
- If there is no sound in CD mode, go to the AUDIO DISC DOES NOT PLAY
- If there is no sound in the XM radio, go to the POOR OR NO SOUND WITH XM RADIO
Do the speaker check mode with self diagnostic function (see XM SELF-DIAGNOSIS ).
Did all speakers produce a tone?

YES -Substitute a known-good audio unit (see AUDIO UNIT REMOVAL/INSTALLATION ), and recheck. If the symptom goes away, replace the original audio unit (see AUDIO UNIT REMOVAL/INSTALLATION ).

NO -Go to step 4.
Turn the ignition switch to LOCK (0).
Check the No. 8 (30 A) fuse in the main under-hood fuse box.
Is the fuse OK?

YES -Go to step 6.

NO -Replace the fuse, and recheck.
Measure the voltage between stereo amplifier connector B (18P) terminal No. 18 and body ground.

Fig 1: Measuring Voltage Between Connector B (18P) Terminal No. 18 And Body Ground
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there battery voltage?

YES -Go to step 7.

NO -Repair an open in the wire between the No. 8 (30 A) fuse in the main under-hood fuse box and stereo amplifier connector B (18P) terminal No. 18.
Turn the ignition switch to ON (II).
Measure the voltage between stereo amplifier connector A (20P) terminal No. 1 and body ground.

Fig 2: Measuring Voltage Between Connector A (20P) Terminal No. 1 And Body Ground
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there battery voltage?

YES -Go to step 9.

NO -Repair an open in the wire between stereo amplifier connector A (20P) and audio unit connector B (32P).
Measure the voltage between stereo amplifier connector B (18P) terminal No. 9 and body ground.

Fig 3: Measuring Voltage Between Connector B (18P) Terminal No. 9 And Body Ground
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there less than 0.2 V?

YES -Go to step 10.

NO -Repair an open or high resistance in the wire between stereo amplifier connector B (18P) terminal No. 9 and body ground (G504) (see CONNECTOR TO FUSE/RELAY BOX INDEX ).
Turn the ignition switch to LOCK (0).
Check the speaker(s) with no sound for any damage.
Is there any damage?

YES -Replace the speaker(s) (see SPEAKER TEST/REPLACEMENT ), and recheck.

NO -Go to step 12.
Remove the speaker(s) that has no sound (see SPEAKER TEST/REPLACEMENT ), and disconnect its connector.
Check the speaker 2P connector for a loose or poor connection.
Reconnect the speaker connector, and recheck the symptom; is the condition still present?

YES -Go to step 14.

NO -Intermittent failure. Operation is normal.
Test the speaker(s) (see SPEAKER TEST/REPLACEMENT ).
Is the speaker OK?

YES -Go to step 15.

NO -Replace the speaker(s) (see SPEAKER TEST/REPLACEMENT ).
Turn the ignition switch to ON (II).
Do the audio unit self-diagnostic function DSP unit communication check (see SELF-DIAGNOSTIC FUNCTION ).
Is the DSP communication OK?

YES -Go to step 17.

NO -Replace the audio unit (see AUDIO UNIT REMOVAL/INSTALLATION ).
Turn the ignition switch to LOCK (0).
Reconnect the speaker connector(s).
Disconnect stereo amplifier connector B (18P).

Check for continuity between body ground and stereo amplifier connector B (18P) according to the table.

Speaker	Stereo amplifier connector	Wire color
Front center speaker	B16 (+)	BLK
Front center speaker	B7 (-)	PNK
Driver's door speaker	B11 (+)	WHT
Driver's door speaker	B2 (-)	GRN
Left tweeter	B11 (+)	WHT
Left tweeter	B2 (-)	GRN
Front passenger's door speaker	B15 (+)	RED
Front passenger's door speaker	B6 (-)	BRN
Right tweeter	B15 (+)	RED
Right tweeter	B6 (-)	BRN
Left rear door speaker	B10 (+)	PNK
Left rear door speaker	B1 (-)	PUR
Right rear door speaker	B14 (+)	BLU
Right rear door speaker	B5 (-)	ORN
Subwoofer	B12 (+)	BLU
	B3 (-)	GRY
	B17 (+)	RED
	B8 (-)	BLK

Fig 4: Identifying Stereo Amplifier Connector B (18P) Connector Terminals

Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there continuity?

YES -Repair a short to body ground in the wire(s) between the stereo amplifier and the speaker(s).

NO -Go to step 21.

Disconnect the left tweeter 2P connector and the right tweeter 2P connector.

Measure the resistance between both pairs of speaker wires (+) and (-) at stereo amplifier connector B (18P) according to the table.

Speaker	Stereo amplifier connector	Wire color
Front center speaker	B16(+)	BLK
Front center speaker	B7 (-)	PNK
Driver's door speaker	B11 (+)	WHT
Driver's door speaker	B2 (-)	GRN
Front passenger's door speaker	B15 (+)	RED
Front passenger's door speaker	B6 (-)	BRN
Left rear door speaker	B10 (+)	PNK
Left rear door speaker	B1 (-)	PUR
Right rear door speaker	B14 (+)	BLU
Right rear door speaker	B5 (-)	ORN
Subwoofer	B12 (+)	BLU
	B3 (-)	GRY
	B17 (+)	RED
	B8 (-)	BLK

Resistance

Front center speaker: 4 Ω

Driver's door speaker: 2 Ω

Front passenger's door speaker: 2 Ω

Left rear door speaker: 2 Ω

Right rear door speaker: 2 Ω

Subwoofer: 2 Ω

Fig 5: Identifying Stereo Connector B (18P) Connector Terminals

Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is the resistance OK?

YES -Go to step 23.

NO -Repair an open or a short in the wire(s) between the stereo amplifier and the speaker(s).

Disconnect the Driver's door speaker 2P connector and the passenger's door speaker 2P connector.
Connect the tweeter 2P connector terminal (+) and (-) with a jumper wire.

Fig 6: Identifying Left Tweeter 2P Connector Terminals
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Fig 7: Identifying Right Tweeter 2P Connector Terminals
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Check for continuity between both pairs of speaker wires (+) and (-) at stereo amplifier connector B (18P) according to the table.

Speaker	Stereo amplifier connector	Wire color
Left tweeter	B11 (+)	WHT
Left tweeter	B2 (-)	GRN
Right tweeter	B15 (+)	RED
Right tweeter	B6 (-)	BRN

Fig 8: Identifying Stereo Amplifier Connector B (18P) Connector Terminals

Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there continuity?

YES -Go to step 26.

NO -Repair an open in the wire(s) between the stereo amplifier and the speaker(s).

Check for continuity between audio unit connector B (32P) and stereo amplifier connector A (20P) according to the table.

Audio unit connector	Stereo amplifier connector	Wire color
B8	A16	RED
B10	A17	PNK
B11	A19	PUR
B13	A20	YEL
B14	A14	RED
B16	A13	PNK
B24	A6	GRN
B26	A7	BLU
B27	A9	LT BLU
B29	A10	BRN
B30	A4	GRN
B32	A3	BLU

Fig 9: Identifying Audio Unit Connector B (32P) Connector Terminals

Courtesy of AMERICAN HONDA MOTOR CO., INC.

Fig 10: Identifying Stereo Amplifier Connector A (20P) Connector Terminals

Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there continuity?

YES -Go to step 27.

NO -Repair an open in the wire(s) between the audio unit and the stereo amplifier.

Check for continuity between body ground and stereo amplifier connector A (20P) according to the table.

Stereo amplifier connector	Wire color
A3	BLU
A4	GRN
A6	GRN
A7	BLU
A9	LT BLU
A10	BRN
A13	PNK
A14	RED
A16	RED
A17	PNK
A19	PUR
A20	YEL

Fig 11: Identifying Stereo Amplifier Connector A (20P) Connector Terminals

Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there continuity?

YES -Repair a short to body ground in the wire(s) between the audio unit and the stereo amplifier.

NO -Go to step 28.

Check for continuity between the terminals of stereo amplifier connector A (20P) according to the table.

From terminal	To terminals
A3 (BLU)	A4 (GRN), A6 (GRN), A7 (BLU), A9 (LT BLU), A10 (BRN), A13 (PNK), A14 (RED), A16 (RED), A17 (PNK), A19 (PUR), A20 (YEL)
A4 (GRN)	A6 (GRN), A7 (BLU), A9 (LT BLU), A10 (BRN), A13 (PNK), A14 (RED), A16 (RED), A17 (PNK), A19 (PUR), A20 (YEL)
A6 (GRN)	A7 (BLU), A9 (LT BLU), A10 (BRN), A13 (PNK), A14 (RED), A16 (RED), A17 (PNK), A19 (PUR), A20 (YEL)
A7 (BLU)	A9 (LT BLU), A10 (BRN), A13 (PNK), A14 (RED), A16 (RED), A17 (PNK), A19 (PUR), A20 (YEL)
A9 (LT BLU)	A10 (BRN), A13 (PNK), A14 (RED), A16 (RED), A17 (PNK), A19 (PUR), A20 (YEL)
A10 (BRN)	A13 (PNK), A14 (RED), A16 (RED), A17 (PNK), A19 (PUR), A20 (YEL)
A13 (PNK)	A14 (RED), A16 (RED), A17 (PNK), A19 (PUR), A20 (YEL)
A14 (RED)	A16 (RED), A17 (PNK), A19 (PUR), A20 (YEL)
A16 (RED)	A17 (PNK), A19 (PUR), A20 (YEL)
A17 (PNK)	A19 (PUR), A20 (YEL)
A19 (PUR)	A20 (YEL)

Fig 12: Identifying Stereo Amplifier Connector A (20P) Connector Terminals

Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there continuity between any of the terminals?

YES -Repair a short in the wires between the audio unit and the stereo amplifier.

NO -substitute a known-good stereo amplifier (see STEREO AMPLIFIER REMOVAL/INSTALLATION ), and recheck. If the symptom/indication goes away, replace the original stereo amplifier (see STEREO AMPLIFIER REMOVAL/INSTALLATION ). If the symptom is still present. Substitute a known-good audio unit (see AUDIO UNIT REMOVAL/INSTALLATION ), and recheck. If the symptom/indication goes away, replace the original audio unit (see AUDIO UNIT REMOVAL/INSTALLATION ).