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Table of Contents > 2. Symptom Tests > Audio System Information Does Not Display on the Multi-Information Display Unit

Honda CR-V Audio System Troubleshooting & Testing ➜ Audio System Information Does Not Display on the Multi-Information Display Unit

Fig. 60: Checking For Continuity Between Test Point Audio Unit Connector B (20P) No. 5  
(GRN) And Center Display Unit 12P Connector No. 5 (GRN)  
Courtesy of AMERICAN HONDA MOTOR CO., INC.  
Is there continuity?  
YES : The DUET RX and the DUET TX wires are OK. Go to step 11.  
NO : There is an open in the wire(s) between the audio unit and the center display unit. Replace the  
affected shielded harness.  
11. Audio unit check:  
ο‚‘
1. SUBSTITUTE A KNOWN-GOOD CENTER DISPLAY UNIT, AND RECHECK.  
Does the symptom go away?  
YES : Replace the original center display unit.  
NO : REPLACE THE AUDIO UNIT .  
AUDIO SYSTEM INFORMATION DOES NOT DISPLAY ON THE MULTI-INFORMATION  
DISPLAY UNIT (WITH NAVIGATION)  
Fig. 61: Audio System Symptom Troubleshooting Flowchart - Audio System Information Does Not  
Display On Multi-Information Display Unit  
Courtesy of AMERICAN HONDA MOTOR CO., INC.  
NOTE:  
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CHECK THE VEHICLE BATTERY CONDITION FIRST .  
Check the connectors for poor connections or loose terminals.  
The climate control unit 32P (black) connector and the HFL control unit  
32P (grey) connector are the same shape. Make sure the correct connector  
is connected to the applicable unit.  
1. Determine possible failure area (audio system, others):  
ο‚‘
1. Turn the ignition switch to ON (II).  
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2. Check if any MID information appears on the multi-information display unit.  
Is there any information displayed?  
YES : Go to step 2.  
NO : Go to MULTI-INFORMATION DISPLAY UNIT DOES NOT WORK  
TROUBLESHOOTING.  
2. Problem verification:  
ο‚‘
1. Turn on the audio system, and press the AUDIO button to check if the multi-information display  
changes to the audio information screen.  
Is the audio information displayed?  
YES : Intermittent failure, the system is OK at this time.  
NO : The failure is duplicated, go to step 3.  
3. Shorted wire check (GA SYS ON line):  
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1. Turn the ignition switch to LOCK (0).  
2. Disconnect the following connectors.  
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Audio-navigation unit connector C (14P)  
XM receiver connector A (14P)  
Multi-information display unit connector A (32P)  
3. Check for continuity between test points 1 and 2.  
Test condition IG LOCK (0)  
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Audio-navigation unit connector C (14P): disconnected  
XM receiver connector A (14P): disconnected  
Multi-information display unit connector A (32P): disconnected  
Test circuit GA SYS ON  
Test point 1 Multi-information display unit connector A (32P) No. 32 (PNK)  
Test point 2 Body ground  
Fig. 62: Checking For Continuity Between Test Point Multi-Information Display Unit  
Connector A (32P) No. 32 (PNK) And Body Ground  
Courtesy of AMERICAN HONDA MOTOR CO., INC.  
Is there continuity?  
YES : Repair a short to body ground in the wire between the multi-information display unit and the  
audio-navigation unit.  
NO : The GA SYS ON wire is not shorted to ground. Go to step 4.  
4. Open wire check (GA SYS ON line):  
ο‚‘
1. Check for continuity between test points 1 and 2.  
Test condition IG LOCK (0)  
Audio-navigation unit connector C (14P): disconnected  
XM receiver connector A (14P): disconnected  
Multi-information display unit connector A (32P): disconnected  
Test circuit GA SYS ON  
Test point 1 Audio-navigation unit connector C (14P) No. 5 (PNK)  
Test point 2 Multi-information display unit connector A (32P) No. 32 (PNK)  
Fig. 63: Checking For Continuity Between Audio-Navigation Unit Connector C (14P) No. 5  
(PNK) And Multi-Information Display Unit Connector A (32P) No. 32 (PNK)  
Courtesy of AMERICAN HONDA MOTOR CO., INC.  
Is there continuity?  
YES : The GA SYS ON wire is OK. Go to step 5.  
NO : Repair an open in the wire between the audio-navigation unit and the multi-information display  
unit.  
5. Shorted wire check (GA BUS+ line, GA BUS- line):  
ο‚‘
1. Disconnect the following connector.  
HandsFreeLink control unit 32P connector  
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2. Check for continuity between test points 1 and 2.  
Test condition IG LOCK (0)  
Audio-navigation unit connector C (14P): disconnected  
XM receiver connector A (14P): disconnected  
Multi-information display unit connector A (32P): disconnected  
HandsFreeLink control unit 32P connector: disconnected  
Test circuit GA BUS-  
Test point 1 Audio-navigation unit connector C (14P) No. 11 (PNK)  
Test point 2 Body ground  
Test circuit GA BUS+  
Test point 1 Audio-navigation unit connector C (14P) No. 12 (BLU)  
Test point 2 Body ground  
Fig. 64: Checking For Continuity Between Test Point Audio-Navigation Unit Connector C  
(14P) No. 12 (BLU) And Body Ground  
Courtesy of AMERICAN HONDA MOTOR CO., INC.  
Is there continuity?  
YES : There is a short to body ground in the wire(s) between the audio-navigation unit and the multi-  
information display unit. Replace the affected shielded harness.  
NO : The GA BUS+ and the GA BUS- wires are not shorted to ground. Go to step 6.  
6. Shorted wire check (GA BUS+ line to GA BUS- line):  
ο‚‘
1. Check for continuity between test points 1 and 2.  
Test condition IG LOCK (0)  
Audio-navigation unit connector C (14P): disconnected  
XM receiver connector A (14P): disconnected  
Multi-information display unit connector A (32P): disconnected  
HandsFreeLink control unit 32P connector: disconnected  
Test circuit GA BUS-, GA BUS+  
Test point 1 Audio-navigation unit connector C (14P) No. 11 (PNK)  
Test point 2 Audio-navigation unit connector C (14P) No. 12 (BLU)  
Fig. 65: Checking For Continuity Between Test Point Audio-Navigation Unit Connector C  
(14P) No. 11 (PNK) And No. 12 (BLU)  
Courtesy of AMERICAN HONDA MOTOR CO., INC.  
Is there continuity?  
YES : There is a short in the wires between the audio-navigation unit and the multi-information display  
unit. Replace the affected shielded harness.  
NO : The GA BUS+ and the GA BUS- wires are not shorted. Go to step 7.  
7. Shorted wire check (SH GA BUS line to another lines):  
ο‚‘
1. Check for continuity between test points 1 and 2.  
Test condition IG LOCK (0)  
Audio-navigation unit connector C (14P): disconnected  
XM receiver connector A (14P): disconnected  
Multi-information display unit connector A (32P): disconnected  
HandsFreeLink control unit 32P connector: disconnected  
Test circuit SH GA BUS, GA BUS+  
Test point 1 Audio-navigation unit connector C (14P) No. 4 (GRY)  
Test point 2 Audio-navigation unit connector C (14P) No. 12 (BLU)  
Test circuit SH GA BUS, GA BUS-  
Test point 1 Audio-navigation unit connector C (14P) No. 4 (GRY)  
Test point 2 Audio-navigation unit connector C (14P) No. 11 (PNK)  
Fig. 66: Checking For Continuity Between Test Point Audio-Navigation Unit Connector C  
(14P) No. 4 (GRY) And No. 11 (PNK)  
Courtesy of AMERICAN HONDA MOTOR CO., INC.  
Is there continuity?  
YES : There is a short in the wires between the audio-navigation unit and the multi-information display  
unit. Replace the affected shielded harness.  
NO : The SH GA BUS wire is OK. Go to step 8.  
8. Open wire check (GA BUS+ line, GA BUS- line):  
ο‚‘
1. Check for continuity between test points 1 and 2.  
Test condition IG LOCK (0)  
Audio-navigation unit connector C (14P): disconnected  
XM receiver connector A (14P): disconnected  
Multi-information display unit connector A (32P): disconnected  
HandsFreeLink control unit 32P connector: disconnected  
Test circuit GA BUS-  
Test point 1 Audio-navigation unit connector C (14P) No. 11 (PNK)  
Test point 2 Multi-information display unit connector A (32P) No. 11 (PNK)  
Test circuit GA BUS+  
Test point 1 Audio-navigation unit connector C (14P) No. 12 (BLU)  
Test point 2 Multi-information display unit connector A (32P) No. 27 (BLU)  
Fig. 67: Checking For Continuity Between Test Point 1 Audio-Navigation Unit Connector C  
(14P) No. 12 (BLU) And Multi-Information Display Unit Connector A (32P) No. 27 (BLU)  
Courtesy of AMERICAN HONDA MOTOR CO., INC.  
Is there continuity?  
YES : The GA BUS+ and the GA BUS- wires are OK. Go to step 9.  
NO : There is an open in the wire(s) between the audio-navigation unit and the multi-information display  
unit. Replace affected shielded harness.  
9. Determine possible failure area (related unit, others):  
ο‚‘
1. Reconnect audio-navigation unit connector C (14P) and multi-information display unit connector  
A (32P).  
ο‚‘
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2. Turn the ignition switch to ON (II).  
3. Turn on the audio system, and press the AUDIO button to check if the multi-information display  
changes to the audio information screen.  
Is the audio information displayed?  
YES : Go to step 10.  
NO : Go to step 11.  
10. XM receiver check:  
ο‚‘
ο‚‘
ο‚‘
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1. Turn the ignition switch to LOCK (0).  
2. Reconnect XM receiver connector A (14P).  
3. Turn the ignition switch to ON (II).  
4. Turn on the audio system, and press the CD/XM button to check if the multi-information display  
changes to the XM information screen.  
Is the XM information displayed on the multi-information display unit?  
YES : Replace the HandsFreeLink control unit See HANDSFREELINK CONTROL UNIT  
REMOVAL AND INSTALLATION or HANDSFREELINK CONTROL UNIT UPDATE .  
NO : REPLACE THE XM RECEIVER .  
11. Audio-navigation unit check:  
ο‚‘
1. Turn the ignition switch to LOCK (0).  
ο‚‘
2. SUBSTITUTE A KNOWN-GOOD MULTI-INFORMATION DISPLAY UNIT , and  
recheck.  
Does the symptom go away?  
YES : Replace the original multi-information display unit.  
NO : REPLACE THE AUDIO-NAVIGATION UNIT .  
AUDIO SYSTEM INFORMATION DOES NOT DISPLAY ON THE MULTI-INFORMATION  
DISPLAY (WITHOUT NAVIGATION)  
reload full screen
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