Fig. 190: Audio System Symptom Troubleshooting Flowchart - Radio Tuner Does Not Change Stations
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Does the radio station change?
1. Problem verification:
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1. Turn the ignition switch to ON (II).
2. Turn on the audio system, and select AM or FM.
3. Operate the tuning knob to see if the radio station changes.
YES : Intermittent failure, the tuning knob is OK at this time.
NO : REPLACE THE AUDIO-NAVIGATION UNIT .
NO : REPLACE THE AUDIO UNIT .
REARVIEW CAMERA IMAGE DOES NOT CHANGE
Fig. 191: Audio System Symptom Troubleshooting Flowchart - Rearview Camera Image Does Not
Change
Courtesy of AMERICAN HONDA MOTOR CO., INC.
NOTE:
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You can select three different rearview camera angles for backing up. If
there is no camera image on the display, go to REARVIEW CAMERA
IMAGE DOES NOT COME ON OR WORK PROPERLY TROUBLESHOOTING.
Check the connectors for poor connections or loose terminals.
1. Problem verification:
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1. Turn the ignition switch to ON (II).
2. Move the shift lever to R.
3. Press the selector knob to see if the rearview image changes between the wide view, the normal
view, and the top down view in this order.
Does the rearview camera image change properly?
YES : Intermittent failure, the system is OK at this time.
NO : The failure is duplicated, go to step 2.
2. Shorted wire check (CAMERA BIT0 line, CAMERA BIT1 line):
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1. Move the shift lever to P or N.
2. Turn the ignition switch to LOCK (0).
3. Disconnect the following connector.
Multi-information display unit connector A (32P)
Rearview camera 12P connector
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4. Check for continuity between test points 1 and 2.
Test condition IG LOCK (0)
Multi-information display unit connector A (32P): disconnected
Rearview camera 12P connector: disconnected
Test circuit CAMERA BIT0
Test point 1 Rearview camera 12P connector No. 2 (GRN)
Test point 2 Body ground
Test circuit CAMERA BIT1
Test point 1 Rearview camera 12P connector No. 1 (BLU)
Test point 2 Body ground
Fig. 192: Checking For Continuity Between Test Point Rearview Camera 12P Connector No.
1 (BLU) And Body Ground
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Is there continuity?
YES : Repair a short to body ground in the wire(s) between the rearview camera and the multi-
information display unit.
NO : The CAMERA BIT0 and the CAMERA BIT1 wires are not shorted to ground. Go to step 3.
3. Shorted wire check (CAMERA BIT0 line, CAMERA BIT1 line):
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1. Check for continuity between test points 1 and 2.
Test condition IG LOCK (0)
Multi-information display unit connector A (32P): disconnected
Rearview camera 12P connector: disconnected
Test circuit CAMERA BIT0, CAMERA BIT1
Test point 1 Rearview camera 12P connector No. 2 (GRN)
Test point 2 Rearview camera 12P connector No. 1 (BLU)
Fig. 193: Checking For Continuity Between Test Point Rearview Camera 12P Connector No.
2 (GRN) And No. 1 (BLU)
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Is there continuity?
YES : Repair a short in the wires between the rearview camera and the multi-information display unit.
NO : The CAMERA BIT0 and the CAMERA BIT1 wires are not shorted. Go to step 4.
4. Open wire check (CAMERA BIT0 line, CAMERA BIT1 line):
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1. Check for continuity between test points 1 and 2.
Test condition IG LOCK (0)
Multi-information display unit connector A (32P): disconnected
Rearview camera 12P connector: disconnected
Test circuit CAMERA BIT0
Test point 1 Multi-information display unit connector A (32P) No. 4 (GRN)
Test point 2 Rearview camera 12P connector No. 2 (GRN)
Test circuit CAMERA BIT1
Test point 1 Multi-information display unit connector A (32P) No. 5 (BLU)
Test point 2 Rearview camera 12P connector No. 1 (BLU)
Fig. 194: Checking For Continuity Between Test Point Multi-Information Display Unit
Connector A (32P) No. 5 (BLU) And Rearview Camera 12P Connector No. 1 (BLU)
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Is there continuity?
YES : The CAMERA BIT0 and the CAMERA BIT1 wires are OK. Go to step 5.
NO : Repair an open in the wire(s) between the rearview camera and the multi-information display unit.
5. Multi-information display unit check:
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1. SUBSTITUTE A KNOWN-GOOD REARVIEW CAMERA , and recheck.
YES : Replace the original rearview camera.
NO : REPLACE THE MULTI-INFORMATION DISPLAY UNIT .
Does the symptom go away?
REARVIEW CAMERA IMAGE DOES NOT COME ON OR WORK PROPERLY
Fig. 195: Audio System Symptom Troubleshooting Flowchart - Rearview Camera Image Does Not Come
On Or Work Properly
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.
1. Problem verification:
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1. Turn the ignition switch to ON (II).
2. Make sure the multi-information display comes on.
3. Move the shift lever to R.
Does the multi-information display unit image change when the shift lever is in R?
YES : Intermittent failure, the system is OK at this time.
NO : The failure is duplicated, go to step 2.
2. Determine possible failure area (BACK LT line, others):
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1. Move the shift lever to P or N.
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2. DO THE SELF-DIAGNOSTIC FUNCTION, and use the Camera in the Display Diagnosis.
Does the rearview image appear?
YES : Go to step 3.
NO : Go to step 4.
3. Open wire check (BACK LT line):
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1. Turn the ignition switch to LOCK (0).
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2. Disconnect the following connector.
Multi-information display unit connector A (32P)
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3. Turn the ignition switch to ON (II).
4. Move the shift lever to R.
5. Measure the voltage between test points 1 and 2.
Test condition IG ON (II)
Multi-information display unit connector A (32P): disconnected
Test circuit BACK LT
Test point 1 Multi-information display unit connector A (32P) No. 14 (BRN)
Test point 2 Body ground
Fig. 196: Checking For Continuity Between Test Point Multi-Information Display Unit
Connector A (32P) No. 14 (BRN) And Body Ground
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Is there battery voltage?
YES : REPLACE THE MULTI-INFORMATION DISPLAY UNIT .
NO : Repair an open in the wire between the multi-information display unit and the under-dash fuse/relay
box.
4. Determine possible failure area (CAMERA ADPT line, others):
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1. Turn the ignition switch to LOCK (0).
2. Disconnect the following connector.
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Rearview camera 12P connector
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3. Turn the ignition switch to ON (II).
4. Measure the voltage between test points 1 and 2.
Test condition IG ON (II)
Rearview camera 12P connector: disconnected
Test circuit CAMERA ADPT
Test point 1 Rearview camera 12P connector No. 11 (YEL)
Test point 2 Body ground
Fig. 197: Measuring Voltage Between Test Point Rearview Camera 12P Connector No. 11
(YEL) And Body Ground
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Is there about 3.0 V?
YES : The CAMERA ADPT wire is OK. Go to step 6.
NO : Go to step 5.
5. Open wire check (CAMERA ADPT line):
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1. Measure the voltage between test points 1 and 2.
Test condition IG ON (II)
Rearview camera 12P connector: disconnected
Test circuit CAMERA ADPT
Test point 1 Multi-information display unit connector A (32P) No. 21 (BLK)
Test point 2 Body ground
Fig. 198: Measuring Voltage Between Test Point Multi-Information Display Unit Connector
A (32P) No. 21 (BLK) And Body Ground
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Is there about 3.0 V?
YES : Repair an open in the wire between the multi-information display unit and the rearview camera.
NO : REPLACE THE MULTI-INFORMATION DISPLAY UNIT .
6. Open wire check (CAMERA lines):
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1. Turn the ignition switch to LOCK (0).
2. Disconnect the following connector.
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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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Rearview camera 12P connector: disconnected
Multi-information display unit connector A (32P): disconnected
Test point 1: Multi-information display unit Test point 2: Rearview camera
Test circuit
connector A (32P)
12P connector
SH CAMERA
No. 2 (GRY)
No. 12 (GRY)
CAMERA V
GND
No. 3 (WHT)
No. 6 (WHT)
CAMERA
GND
CAMERA V
CAMERA
VCC
No. 18 (GRN)
No. 19 (RED)
No. 20 (YEL)
No. 7 (BLK)
No. 9 (RED)
No. 4 (GRN)
Fig. 199: Identifying Multi-Information Display Unit Connector A (32P)
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Fig. 200: Identifying Rearview Camera 12P Connector
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Is there continuity?
YES : The CAMERA wires are not open. Go to step 7.
NO : There is an open in the wire(s) between the multi-information display unit and the rearview camera.
Replace affected shielded harness.
7. Shorted wire check (CAMERA lines) 1:
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1. Check for continuity between test points 1 and 2.
Test condition IG LOCK (0)
Rearview camera 12P connector: disconnected
Multi-information display unit connector A (32P): disconnected
Connector: Multi-information display
unit connector A (32P)
Test circuits
Test point
Test points 2
1
SH CAMERA to CAMERA V GND, CAMERA GND,
CAMERA V, CAMERA VCC No. 2 (GRY)
No. 3
(WHT),
No. 18 (GRN), No. 19
(RED), No. 20 (YEL)
CAMERA V GND to CAMERA GND, CAMERA V,
CAMERA VCC
No. 3
(WHT)
No. 18 (GRN), No. 19
(RED), No. 20 (YEL)
No. 18
(GRN)
No. 19
(RED)
No. 19 (RED), No. 20
(YEL)
CAMERA GND to CAMERA V, CAMERA VCC
CAMERA V to CAMERA VCC
No. 20 (YEL)
Fig. 201: Identifying Multi-Information Display Unit Connector A (32P)
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 multi-information display unit and the rearview camera.
Replace the affected shielded harness.
NO : The CAMERA wires are not shorted in the wires. Go to step 8.
8. Shorted wire check (CAMERA lines) 2:
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1. Check for continuity between these test points and body ground individually.
Test condition IG LOCK (0)
Rearview camera 12P connector: disconnected
Multi-information display unit connector A (32P): disconnected
Connector
Test circuit
Terminal
CAMERA V GND No. 3 (WHT)
CAMERA GND No. 18 (GRN)
CAMERA V No. 19 (RED)
CAMERA VCC No. 20 (YEL)
Multi-information display unit connector A (32P)
Fig. 202: Identifying Multi-Information Display Unit Connector A (32P)
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Is there continuity?
YES : There is a short to body ground in the wire(s) between the multi-information display unit and the
rearview camera. Replace the affected shielded harness.
NO : The CAMERA wires are OK. Go to step 9.
9. Multi-information display unit check:
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1. SUBSTITUTE A KNOWN-GOOD REARVIEW CAMERA , and recheck.
Does the symptom go away?
YES : Replace the original rearview camera.
NO : REPLACE THE MULTI-INFORMATION DISPLAY UNIT .
USB DEVICE DOES NOT FUNCTION
Fig. 203: Audio System Symptom Troubleshooting Flowchart - USB Device Does Not Function
Courtesy of AMERICAN HONDA MOTOR CO., INC.
NOTE:
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CHECK THE VEHICLE BATTERY CONDITION FIRST .
Check the USB's specifications:
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Mass-storage class ready digital audio player with USB 2.0 port
More than 256 MB storage space
Supports MP3, WMA, and AAC (encoded with the iTunes) files, DRM
files are not supported
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Not all players and player functions work with the USB adapter. Please see
the Owner's Manual for more information. Always test the customer's USB
device in a known-good vehicle of the same year and trim (if possible).
Technologies change and are updated frequently which may result in USB
devices working in newer vehicles, but not in older vehicles of the same
model.
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If Unsupported Ver appears on the display, the vehicle is OK, there is a
software problem with the USB device.
2024 Honda CR-V Owner's Manual
2023 Honda CR-V Owner's Manual
2021 Honda CR-V Owner's Manual
2018 Honda CR-V Owner's Manual
2015 Honda CR-V Owner's Manual
