Audio System - No sound is heard from the speaker(s) (display is normal) (Without Navigation with Premium Audio) (2013 2014 2015)

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

NOTE: 

• Check the vehicle battery condition first .
• Set the fader and the balance positions to the center.
• Before doing this troubleshooting, go to Audio power switch will not turn on (No information display and no sound) troubleshooting .
• Check the connectors for poor connections or loose terminals.

1. Problem verification

   -1. Press the engine start/stop button to select the ON mode.

   -2. Turn on the audio unit, and check for sound in each mode (AM/FM, XM, USB, and CD).

   Is the sound OK in each mode?

   YES 

   Intermittent failure, the system is OK at this time. Check for loose connections at the audio-navigation unit and speaker(s).

   NO: No sound is heard in all modes

   The failure is duplicated in all modes, go to step 2.

   NO: No sound is heard in AM/FM mode

   Go to Poor AM or FM radio reception interference (without navigation) troubleshooting .

   NO: No sound is heard in USB mode

   Go to USB input sound is low or cannot be heard (without navigation) troubleshooting .

   NO: No sound is heard in XM mode

   Go to Poor or no sound with XM radio (Audio unit does display XM channels) (without navigation) troubleshooting .

   NO: No sound is heard in CD mode

   Go to Audio disc does not play troubleshooting .

2. Determine possible failure area (volume level, others)

   -1. Check that the volume knob is not set to the MIN level.

   Is it at the MIN level?

   YES 

   Raise the volume level, and recheck the function.

   NO 

   Go to step 3.

3. Determine possible failure area (audio unit, others)

   -1. Do the Self-Diagnostic Function, and use the speaker check mode .

   Did all speakers produce a tone?

   YES 

   Replace the audio unit .

   NO 

   Go to step 4.

4. Fuse check

   -1. Press the engine start/stop button to select the OFF mode.

   -2. Check the following fuse.

   Fuse	No. B37 (20 A)
   Location	Under-dash fuse/relay box

   Is the fuse OK?

   YES 

   Go to step 5.

   NO 

   Replace the fuse, and recheck. If the fuse blows again, check for a short in the No. B37 (20 A) fuse circuit.

5. Open wire check (+B PREMIUM AMP line)

   -1. Measure the voltage between test points 1 and 2.

   Test condition	OFF mode
   Test circuit	+B PREMIUM AMP
   Test point 1	Stereo amplifier connector A (18P) No. 3 (WHT)
   Test point 2	Body ground

   Courtesy of HONDA, U.S.A., INC.

   Is there battery voltage?

   YES 

   The +B PREMIUM AMP wire is OK. Go to step 6.

   NO 

   Repair an open in the wire between the No. B37 (20 A) fuse in the under-dash fuse/relay box and the stereo amplifier.

6. Determine possible failure area (SWD+B line, others)

   -1. Disconnect the following connector.

   Stereo amplifier connector B (24P)

   -2. Press the engine start/stop button to select the ON mode.

   -3. Measure the voltage between test points 1 and 2.

   Test condition	ON mode
   	Stereo amplifier connector B (24P): disconnected
   Test circuit	SWD+B
   Test point 1	Stereo amplifier connector B (24P) No. 13 (WHT)
   Test point 2	Body ground

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   Is there battery voltage?

   YES 

   The SWD+B wire is OK. Go to step 9.

   NO 

   Go to step 7.

7. Open wire check (SWD+B line)

   -1. Measure the voltage between test points 1 and 2.

   Test condition	ON mode
   	Stereo amplifier connector B (24P): disconnected
   Test circuit	SWD+B
   Test point 1	Audio unit connector A (24P) No. 21 (WHT)
   Test point 2	Body ground

   Courtesy of HONDA, U.S.A., INC.

   Is there battery voltage?

   YES 

   Repair an open in the wire between the stereo amplifier and the audio unit.

   NO 

   The SWD+B wire is not open. Go to step 8.

8. Shorted wire check (SWD+B line)

   -1. Press the engine start/stop button to select the OFF mode.

   -2. Disconnect the following connector.

   ANC/active sound control unit 20P connector

   -3. Check for continuity between test points 1 and 2.

   Test condition	OFF mode
   	Stereo amplifier connector B (24P): disconnected
   	ANC/active sound control unit 20P connector: disconnected
   Test circuit	SWD+B
   Test point 1	Audio unit connector A (24P) No. 21 (WHT)
   Test point 2	Body ground

   Courtesy of HONDA, U.S.A., INC.

   Is there continuity?

   YES 

   Repair an short in the wire between the stereo amplifier and the audio unit.

   NO 

   Replace the audio unit .

9. Open wire check (GND line)

   -1. Press the engine start/stop button to select the OFF mode.

   -2. Reconnect stereo amplifier connector B (24P) .

   -3. Press the engine start/stop button to select the ON mode.

   -4. Measure the voltage between test points 1 and 2.

   Test condition	ON mode
   Test circuit	GND
   Test point 1	Stereo amplifier connector A (18P) No. 1 (BLK)
   Test point 2	Body ground

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   Is there less than 0.2 V?

   YES 

   The GND wire is OK. Go to step 10.

   NO 

   Repair an open or high resistance in the wire between the stereo amplifier and body ground (G504).

10. Shorted wire check (SPKR lines, TWEETER lines, SUB WOOFER lines)

    -1. Disconnect the following connector.

    Stereo amplifier connector A (18P)

    -2. Check for continuity between these test points and body ground individually.

    Test condition

    OFF mode

    Stereo amplifier connector A (18P): disconnected

    Connector	Test circuit	Terminal
    Stereo amplifier connector A (18P)	FL SPKR+	No. 13 (LT GRN)
    	FL SPKR	No. 6 (PNK)
    	FL TWEETER+	No. 12 (RED)
    	FL TWEETER	No. 5 (PNK)
    	FR SPKR+	No. 14 (GRY)
    	FR SPKR	No. 7 (BRN)
    	FR TWEETER+	No. 15 (WHT)
    	FR TWEETER	No. 8 (PUR)
    	RL SPKR+	No. 16 (YEL)
    	RL SPKR	No. 9 (BRN)
    	RR SPKR+	No. 17 (BLU)
    	RR SPKR	No. 10 (ORN)
    	SUB WOOFER+	No. 4 (GRN)
    	SUB WOOFER	No. 2 (RED)

    Courtesy of HONDA, U.S.A., INC.

    Is there continuity?

    YES 

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

    NO 

    The SPKR, the TWEETER, and the SUB WOOFER wires are not shorted to ground. Go to step 11.

11. Determine possible failure area (speaker, others) 1

    -1. Check the speaker(s) with no sound for any damage.

    Is there any damage?

    YES 

    Replace the faulty speaker(s) .

    NO 

    Go to step 12.

12. Determine possible failure area (speaker, others) 2

    -1. Test the speaker(s) .

    Is the speaker(s) OK?

    YES 

    Go to step 13.

    NO 

    Replace the faulty speaker(s) .

13. Open wire check (SPKR lines, TWEETER lines, SUB WOOFER lines)

    -1. Reconnect all the speaker connectors .

    -2. Measure the resistance between test points 1 and 2.

    Test condition	OFF mode
    	Stereo amplifier connector A (18P): disconnected

    Test circuits	Test point 1:Stereo amplifier connector A (18P)	Test point 2:Stereo amplifier connector A (18P)	Resistance
    FL SPKR+, FL SPKR	No. 13 (LT GRN)	No. 6 (PNK)	About 4 '
    FR SPKR+, FR SPKR	No. 14 (GRY)	No. 7 (BRN)	About 4 '
    FL TWEETER+, FL TWEETER	No. 12 (RED)	No. 5 (PNK)	About 3.3 '
    FR TWEETER+, FR TWEETER	No. 15 (WHT)	No. 8 (PUR)	About 3.3 '
    RL SPKR+, RL SPKR	No. 16 (YEL)	No. 9 (BRN)	About 4 '
    RR SPKR+, RR SPKR	No. 17 (BLU)	No. 10 (ORN)	About 4 '
    SUB WOOFER+, SUB WOOFER	No. 4 (GRN)	No. 2 (RED)	About 2 '

    Courtesy of HONDA, U.S.A., INC.

    Is the resistance OK?

    YES 

    The SPKR, the TWEETER, and the SUB WOOFER wires are OK. Go to step 14.

    NO 

    Repair an open in the wire between the stereo amplifier and the speaker(s).

14. Open wire check (PRE lines)

    -1. Disconnect the following connectors.

    NOTE:  Eject the disc before disconnecting the audio unit to prevent damaging the CD player's load mechanism.

    Stereo amplifier connector B (24P)

    Audio unit connector A (24P)

    Audio unit connector E (8P)

    -2. Check for continuity between test points 1 and 2.

    Test condition	OFF mode
    	Stereo amplifier connector A (18P): disconnected
    	Stereo amplifier connector B (24P): disconnected
    	Audio unit connector A (24P): disconnected
    	Audio unit connector E (8P): disconnected

    Test circuits	Test point 1:Audio unit connector A (24P)	Test point 2:Stereo amplifier connector B (24P)
    FL PRE+	No. 15 (BRN)	No. 23 (BRN)

    Test circuits	Test point 1:Audio unit connector A (24P)	Test point 2:Stereo amplifier connector B (24P)
    FL PRE	No. 16 (YEL)	No. 11 (YEL)
    FR PRE+	No. 19 (GRN)	No. 20 (GRN)
    FR PRE	No. 20 (RED)	No. 8 (RED)
    RL PRE+	No. 5 (BLU)	No. 21 (BLU)
    RL PRE	No. 6 (PNK)	No. 9 (PNK)
    RR PRE+	No. 9 (LT BLU)	No. 18 (LT BLU)
    RR PRE	No. 10 (PUR)	No. 6 (PUR)

    Test circuits	Test point 1:Audio unit connector E (8P)	Test point 2:Stereo amplifier connector B (24P)
    SUB W PRE+	No. 5 (PNK)	No. 17 (PNK)
    SUB W PRE	No. 7 (BLU)	No. 5 (BLU)

    Courtesy of HONDA, U.S.A., INC.

    Courtesy of HONDA, U.S.A., INC.

    Courtesy of HONDA, U.S.A., INC.

    Is there continuity

    YES 

    The PRE wires are not open. Go to step 15.

    NO 

    There is an open in the wire(s) between the audio unit and the stereo amplifier. Replace the affected shielded harness.

15. Shorted wire check (PRE lines)

    -1. Check for continuity between these test points and body ground individually.

    Test condition	OFF mode
    	Stereo amplifier connector A (18P): disconnected

    	Stereo amplifier connector B (24P): disconnected
    	Audio unit connector A (24P): disconnected
    	Audio unit connector E (8P): disconnected

    Connector	Test circuits	Terminal
    Audio unit connector A (24P)	FL PRE+	No. 15 (BRN)
    	FL PRE	No. 16 (YEL)
    	FR PRE+	No. 19 (GRN)
    	FR PRE	No. 20 (RED)
    	RL PRE+	No. 5 (BLU)
    	RL PRE	No. 6 (PNK)
    	RR PRE+	No. 9 (LT BLU)
    	RR PRE	No. 10 (PUR)

    Connector	Test circuits	Terminal
    Audio unit connector E (8P)	SUB W PRE+	No. 5 (PNK)
    	SUB W PRE	No. 7 (BLU)

    Courtesy of HONDA, U.S.A., INC.

    Courtesy of HONDA, U.S.A., INC.

    Is there continuity?

    YES 

    There is a short to body ground in the wire(s) between the stereo amplifier and the audio unit. Replace the affected shielded harness.

    NO 

    The PRE wires are not shorted to ground. Go to step 16.

16. Shorted wire check (SH PRE line to another lines)

    -1. Check for continuity between test points 1 and 2.

    Test condition	OFF mode
    	Stereo amplifier connector A (18P): disconnected
    	Stereo amplifier connector B (24P): disconnected
    	Audio unit connector A (24P): disconnected
    	Audio unit connector E (8P): disconnected

    Test circuits	Connector: Audio unit connector A (24P)
    	Test point 1	Test points 2
    SH FL PRE to FL PRE+, FL PRE	No. 17 (GRY)	No. 15 (BRN), No. 16 (YEL)
    SH FR PRE to FR PRE+, FR PRE	No. 18 (GRY)	No. 19 (GRN), No. 20 (RED)
    SH RL/RR PRE to RL PRE+, RL PRE-	No. 7 (GRY)	No. 5 (BLU), No. 6 (PNK)
    SH RR PRE to RR PRE+, RR PRE	No. 8 (GRY)	No. 9 (LT BLU), No. 10 (PUR)

    Test circuits	Connector: Audio unit connector E (8P)
    	Test point 1	Test points 2
    SH SUB W to SUB W PRE+, SUB W PRE	No. 6 (GRY)	No. 5 (PNK), No. 7 (BLU)

    Courtesy of HONDA, U.S.A., INC.

    Courtesy of HONDA, U.S.A., INC.

    Is there continuity between any of the terminals?

    YES 

    There is a short in the wires between the stereo amplifier and the audio unit. Replace the affected shielded harness.

    NO 

    The SH PRE wires and the PRE wires are OK. Go to step 17.

17. Audio unit check

    -1. Substitute a known-good stereo amplifier .

    -2. Reconnect all the connectors, and recheck.

    Does the symptom go away?

    YES 

    Replace the original stereo amplifier.

    NO 

    Replace the audio unit .