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Table of Contents > 2. Symptom Tests > No Sound Is Heard from the Speaker(s) (Display Is Normal) (With Stereo Amplifier Without Navigation)

Honda CR-V Audio System Troubleshooting & Testing ➜ No Sound Is Heard from the Speaker(s) (Display Is Normal) (With Stereo Amplifier Without Navigation)

SH RL PRE to RL PRE+, RL PRE-  
SH RR PRE to RR PRE+, RR PRE-  
No. 22 (GRY)  
No. 19 (GRY) No. 18 (LT BLU), No. 6 (PUR)  
No. 21 (BLU), No. 9 (PNK)  
SH SUB W to SUB W PRE+, SUB W PRE- No. 4 (GRY) No. 17 (LT BLU), No. 5 (PUR)  
Fig. 130: Identifying Stereo Amplifier Connector B (24P)  
Courtesy of AMERICAN HONDA MOTOR CO., INC.  
Is there continuity between any of the terminals?  
YES : There is a short in the wires between the stereo amplifier and the audio-navigation unit. Replace  
the affected shielded harness.  
NO : The SH PRE wires and the PRE wires are OK. Go to step 16.  
16. Audio-navigation unit check:  
ο‚‘
1. SUBSTITUTE A KNOWN-GOOD STEREO AMPLIFIER , and recheck.  
Does the symptom go away?  
YES : Replace the original stereo amplifier.  
NO : REPLACE THE AUDIO-NAVIGATION UNIT .  
NO SOUND IS HEARD FROM THE SPEAKER(S) (DISPLAY IS NORMAL) (WITH STEREO  
AMPLIFIER WITHOUT NAVIGATION)  
Fig. 131: Audio System Symptom Troubleshooting Flowchart - No Sound Is Heard From Speaker(s)  
[Display Is Normal] (1 Of 2)  
Courtesy of AMERICAN HONDA MOTOR CO., INC.  
Fig. 132: Audio System Symptom Troubleshooting Flowchart - No Sound Is Heard From Speaker(s)  
[Display Is Normal] (2 Of 2)  
Courtesy of AMERICAN HONDA MOTOR CO., INC.  
NOTE:  



CHECK THE VEHICLE BATTERY CONDITION FIRST .  
Set the fader and the balance positions to the center.  
Before doing this troubleshooting, go to AUDIO UNIT 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:  
ο‚‘
1. Turn the ignition switch to ON (II).  
2. Turn on the audio system, and check for sound in each mode (AM/FM, USB, and CD).  
ο‚‘
Is the sound OK in each mode?  
YES : Intermittent failure, the system is OK at this time. Check for loose connections at the audio unit  
and speaker (s).  
NO : The failure is duplicated in all modes, go to step 2.  
NO : GO TO POOR AM OR FM RADIO RECEPTION INTERFERENCE (WITHOUT  
NAVIGATION) TROUBLESHOOTING.  
NO : Go to USB INPUT SOUND IS LOW OR CANNOT BE HEARD (WITHOUT NAVIGATION,  
WITH MULTI-INFORMATION DISPLAY) TROUBLESHOOTING.  
NO : Go to AUDIO DISC DOES NOT PLAY TROUBLESHOOTING.  
2. Determine possible failure area (volume level, others):  
ο‚‘
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):  
ο‚‘
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:  
ο‚‘
ο‚‘
1. Turn the ignition switch to LOCK (0).  
2. Check the following fuse.  
Fuse No. A13 (20 A)  
Location Under-hood 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. A13 (20 A) fuse  
circuit.  
5. Open wire check (+B AUDIO AMP line):  
ο‚‘
1. Measure the voltage between test points 1 and 2.  
Test condition IG LOCK (0)  
Test circuit +B AUDIO AMP  
Test point 1 Stereo amplifier connector A (18P) No. 3 (RED)  
Test point 2 Body ground  
Fig. 133: Measuring Voltage Between Test point Stereo Amplifier Connector A (18P) No. 3  
(RED) And Body Ground  
Courtesy of AMERICAN HONDA MOTOR CO., INC.  
Is there battery voltage?  
YES : The +B AUDIO AMP wire is OK. Go to step 6.  
NO : Repair an open or high resistance in the wire between the No. A13 (20 A) fuse in the under-hood  
fuse/relay box and the stereo amplifier.  
6. Determine possible failure area (SWD +B line, others):  
ο‚‘
1. Turn the ignition switch to ON (II).  
ο‚‘
2. Measure the voltage between test points 1 and 2.  
Test condition IG ON (II)  
Test circuit SWD +B  
Test point 1 Stereo amplifier connector B (24P) No. 13 (RED)  
Test point 2 Body ground  
Fig. 134: Measuring Voltage Between Test Point Stereo Amplifier Connector B (24P) No. 13  
(RED) And Body Ground  
Courtesy of AMERICAN HONDA MOTOR CO., INC.  
Is there battery voltage?  
YES : Go to step 8.  
NO : Go to step 7.  
7. Open wire check (SWD +B line):  
ο‚‘
1. Measure the voltage between test points 1 and 2.  
Test condition IG ON (II)  
Test circuit SWD +B  
Test point 1 Audio unit connector A (24P) No. 21 (RED)  
Test point 2 Body ground  
Fig. 135: Measuring Resistance Between Test Point Audio Unit Connector A (24P) No. 21  
(RED) And Body Ground  
Courtesy of AMERICAN HONDA MOTOR CO., INC.  
Is there battery voltage?  
YES : Repair an open or high resistance in the wire between the stereo amplifier and the audio unit.  
NO : REPLACE THE AUDIO UNIT .  
8. Open wire check (GND line):  
ο‚‘
1. Measure the voltage between test points 1 and 2.  
Test condition IG ON (II)  
Test circuit GND  
Test point 1 Stereo amplifier connector A (18P) No. 1 (BLK)  
Test point 2 Body ground  
Fig. 136: Measuring Voltage Between Test Point Stereo Amplifier Connector A (18P) No. 1  
(BLK) And Body Ground  
Courtesy of AMERICAN HONDA MOTOR CO., INC.  
Is there less than 0.2 V?  
YES : The GND wire is OK. Go to step 9.  
NO : Repair an open or high resistance in the wire between the stereo amplifier and body ground (G503).  
9. Shorted wire check (SPKR lines, TWEETER lines, SUB WOOFER lines):  
ο‚‘
ο‚‘
1. Turn the ignition switch to LOCK (0).  
2. Disconnect the following connector.  
Stereo amplifier connector A (18P)  
ο‚‘
3. Check for continuity between these test points and body ground individually.  
Test condition IG LOCK (0)  
Stereo amplifier connector A (18P): disconnected  
Connector  
Test circuit  
FL SPKR+ No. 13 (WHT)  
FL SPKR- No. 6 (BLK)  
Terminal  
FL TWEETER+ No. 12 (PUR)  
FL TWEETER- No. 5 (PNK)  
FR SPKR+  
FR SPKR-  
No. 14 (RED)  
No. 7 (GRN)  
FR TWEETER+ No. 15 (RED)  
FR TWEETER- No. 8 (BLU)  
Stereo amplifier connector A (18P)  
RL SPKR+  
RL SPKR-  
No. 16 (BLU)  
No. 9 (PNK)  
RR SPKR+ No. 17 (BLU)  
RR SPKR- No. 10 (PNK)  
SUB WOOFER+ No. 4 (GRN)  
SUB WOOFER No. 2 (BLK)  
Fig. 137: Identifying Stereo Amplifier Connector A (18P)  
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 speaker(s).  
NO : The SPKR, the TWEETER, and the SUB WOOFER wires are not shorted to ground. Go to step 10.  
10. Determine possible failure area (speaker, others) 1:  
ο‚‘
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 11.  
11. Determine possible failure area (speaker, others) 2:  
ο‚‘
1. Disconnect the following connector(s).  
Front door speaker 2P connector  
Rear door speaker 2P connector  
Tweeter 2P connector  
Subwoofer 2P connector  
ο‚‘
2. TEST THE SPEAKER(S) .  
Is the speaker(s) OK?  
YES : Go to step 12.  
NO : REPLACE THE FAULTY SPEAKER(S) .  
12. Open wire check (SPKR lines, SUB WOOFER lines):  
ο‚‘
ο‚‘
1. Reconnect the front door speaker 2P connector(s), the rear door speaker 2P connector(s), and the  
subwoofer 2P connector.  
2. Measure the resistance between test points 1 and 2.  
Test condition IG LOCK (0)  
Stereo amplifier connector A (18P): disconnected  
Test point 1: Stereo  
amplifier connector A (18P) amplifier connector A (18P)  
Test point 2: Stereo  
Test circuits  
Resistance  
About 4  
ohms  
FL SPKR+, FL SPKR-  
No. 13 (WHT) No. 6 (BLK)  
About 4  
FR SPKR+, FR SPKR-  
RL SPKR+, RL SPKR-  
No. 14 (RED)  
No. 16 (BLU)  
No. 7 (GRN)  
No. 9 (PNK)  
ohms  
About 4  
ohms  
RR SPKR+, RR  
SPKR-  
SUB WOOFER+, SUB  
WOOFER-  
About 4  
ohms  
About 2  
ohms  
No. 17 (BLU)  
No. 4 (GRN)  
No. 10 (PNK)  
No. 2 (BLK)  
Fig. 138: Identifying Stereo Amplifier Connector A (18P)  
Courtesy of AMERICAN HONDA MOTOR CO., INC.  
Is the resistance OK?  
YES : The SPKR and the SUB WOOFER wires are OK. Go to step 13.  
NO : Repair an open in the wire(s) between the audio unit and the speaker(s).  
13. Open wire check (TWEETER lines):  
ο‚‘
1. Connect terminals A and B with jumper wires.  
Terminal A Stereo amplifier connector A (18P) No. 5 (PNK)  
Terminal B Stereo amplifier connector A (18P) No. 12 (PUR)  
Terminal A Stereo amplifier connector A (18P) No. 8 (BLU)  
Terminal B Stereo amplifier connector A (18P) No. 15 (RED)  
Fig. 139: Connecting Terminals Stereo Amplifier Connector A (18P) No. 5 (PNK) And No. 12  
(PUR) With Jumper Wires  
Courtesy of AMERICAN HONDA MOTOR CO., INC.  
Fig. 140: Connecting Terminals Stereo Amplifier Connector A (18P) No. 8 (BLU) And No. 15  
(RED) With Jumper Wires  
Courtesy of AMERICAN HONDA MOTOR CO., INC.  
ο‚‘
2. Check for continuity between test points 1 and 2.  
Test condition IG LOCK (0)  
Stereo amplifier connector A (18P): disconnected  
Left (Right) front door speaker 2P connector: disconnected  
Left (Right) tweeter 2P connector: disconnected  
Stereo amplifier connector A (18P) terminals No. 5 and No. 12: jumped  
Stereo amplifier connector A (18P) terminals No. 8 and No. 15: jumped  
Test circuit FL TWEETER+, FL TWEETER-  
Test point 1 Left tweeter 2P connector No. 1 (PNK)  
Test point 2 Left tweeter 2P connector No. 2 (PUR)  
Test circuit FR TWEETER+, FR TWEETER-  
Test point 1 Right tweeter 2P connector No. 1 (BLU)  
Test point 2 Right tweeter 2P connector No. 2 (RED)  
Fig. 141: Checking For Continuity Between Test Point Left Tweeter 2P Connector No. 1  
(PNK) And No. 2 (PUR)  
Courtesy of AMERICAN HONDA MOTOR CO., INC.  
Fig. 142: Checking For Continuity Between Test Point Right Tweeter 2P Connector No. 1  
(BLU) And No. 2 (RED)  
Courtesy of AMERICAN HONDA MOTOR CO., INC.  
Is there continuity?  
YES : The TWEETER wires are OK. Go to step 14.  
NO : Repair an open in the wire(s) between the stereo amplifier and the tweeter.  
14. Open wire check (PRE lines):  
ο‚‘
1. Disconnect the following connectors.  
NOTE: Eject all the discs 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)  
ο‚‘
2. Check for continuity between test points 1 and 2.  
Test condition IG LOCK (0)  
Left (Right) tweeter 2P connector: disconnected  
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  
Test point 1: Audio unit connector A Test point 2: Stereo amplifier connector B  
circuits  
(24P)  
(24P)  
FL PRE+  
FL PRE-  
FR PRE+  
FR PRE-  
RL PRE+  
RL PRE-  
RR PRE+  
RR PRE-  
No. 15 (BRN)  
No. 16 (YEL)  
No. 19 (RED)  
No. 20 (GRN)  
No. 5 (BLU)  
No. 6 (PNK)  
No. 9 (LT BLU)  
No. 10 (PUR)  
No. 23 (BRN)  
No. 11 (YEL)  
No. 20 (RED)  
No. 8 (GRN)  
No. 21 (BLU)  
No. 9 (PNK)  
No. 18 (LT BLU)  
No. 6 (PUR)  
Test point 1: Audio unit connector E Test point 2: Stereo amplifier connector B  
Test circuits  
(8P)  
(24P)  
SUB W  
PRE+  
No. 5 (LT BLU)  
No. 17 (LT BLU)  
SUB W  
PRE-  
No. 7 (PUR)  
No. 5 (PUR)  
Fig. 143: Identifying Audio Unit Connector A (24P)  
Courtesy of AMERICAN HONDA MOTOR CO., INC.  
Fig. 144: Identifying Audio Unit Connector E (8P)  
Courtesy of AMERICAN HONDA MOTOR CO., INC.  
Fig. 145: Identifying Stereo Amplifier Connector B (24P)  
Courtesy of AMERICAN HONDA MOTOR CO., 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.  
ο‚‘
Test condition IG LOCK (0)  
Left (Right) tweeter 2P connector: disconnected  
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  
FL PRE+  
FL PRE-  
FR PRE+  
FR PRE-  
RL PRE+  
RL PRE-  
Terminal  
No. 23 (BRN)  
No. 11 (YEL)  
No. 20 (RED)  
No. 8 (GRN)  
No. 21 (BLU)  
No. 9 (PNK)  
Stereo amplifier connector B (24P)  
RR PRE+ No. 18 (LT BLU)  
RR PRE- No. 6 (PUR)  
SUB W PRE+ No. 17 (LT BLU)  
SUB W PRE- No. 5 (PUR)  
Fig. 146: Identifying Stereo Amplifier Connector B (24P)  
Courtesy of AMERICAN HONDA MOTOR CO., 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)  
ο‚‘
1. Check for continuity between test points 1 and 2.  
Test condition IG LOCK (0)  
Left (Right) tweeter 2P connector: disconnected  
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: Stereo amplifier connector B (24P)  
Test point 1 Test points 2  
No. 10 (GRY) No. 23 (BRN), No. 11 (YEL)  
Test circuits  
SH FL PRE to FL PRE+, FL PRE-  
SH FR PRE to FR PRE+, FR PRE-  
SH RL PRE to RL PRE+, RL PRE-  
SH RR PRE to RR PRE+, RR PRE-  
No. 7 (GRY)  
No. 22 (GRY)  
No. 20 (RED), No. 8 (GRN)  
No. 21 (BLU), No. 9 (PNK)  
No. 19 (GRY) No. 18 (LT BLU), No. 6 (PUR)  
SH SUB W to SUB W PRE+, SUB W PRE- No. 4 (GRY) No. 17 (LT BLU), No. 5 (PUR)  
Fig. 147: Identifying Stereo Amplifier Connector B (24P)  
Courtesy of AMERICAN HONDA MOTOR CO., 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:  
ο‚‘
1. SUBSTITUTE A KNOWN-GOOD STEREO AMPLIFIER, AND RECHECK .  
Does the symptom go away?  
YES : Replace the original stereo amplifier.  
NO : REPLACE THE AUDIO UNIT .  
NO SOUND IS HEARD FROM THE SPEAKER(S) (DISPLAY IS NORMAL) (WITHOUT  
NAVIGATION AND STEREO AMPLIFIER)  
Fig. 148: Audio System Symptom Troubleshooting Flowchart - No Sound Is Heard From Speaker(s)  
(Display Is Normal)  
Courtesy of AMERICAN HONDA MOTOR CO., INC.  
NOTE:  



CHECK THE VEHICLE BATTERY CONDITION FIRST .  
Set the fader and the balance positions to the center.  
Before doing this troubleshooting, go to AUDIO UNIT 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:  
ο‚‘
1. Turn the ignition switch to ON (II).  
2. Turn on the audio unit, and check for sound in each mode (AM/FM, USB, and CD).  
ο‚‘
Is the sound OK in each mode?  
YES : Intermittent failure, the system is OK at this time. Check for loose connections at the audio unit  
and speaker(s).  
NO : The failure is duplicated in all modes, go to step 2.  
reload full screen
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