Fig. 169: Checking For Continuity Between Test Point FM Distributor 3P Connector No. 1
And Body Ground
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Is there continuity?
YES : Replace the AM/FM antenna lead and/or the sublead.
NO : REPLACE THE FM DISTRIBUTOR .
POOR AM OR FM RADIO RECEPTION OR INTERFERENCE (WITHOUT NAVIGATION)
Fig. 170: Audio System Symptom Troubleshooting Flowchart - Poor AM Or FM Radio Reception Or
Interference
Courtesy of AMERICAN HONDA MOTOR CO., INC.
NOTE:
ο¬
ο¬
CHECK THE VEHICLE BATTERY CONDITION FIRST .
Check for aftermarket accessories plugged into the vehicle accessory
power sockets.
ο¬
Check for any radio frequency modulators that are plugged into the FM
antenna lead. These modulators allow customers to play audio from
accessories like CD players or game consoles using the audio system, but
they can create interference issues.
ο¬
Check the radio reception in an open area. Compare it to a known-good
vehicle whenever possible. Poor reception/interference can be caused by
the following:
ο‘
ο‘
ο‘
ο‘
The radio station is far away
Atmospheric conditions are unfavorable
Tall buildings, mountains, or high-voltage power lines are nearby
Electrical loads like the rear window defroster, seat heaters, game
consoles, etc.
ο¬
Check the connectors for poor connections or loose terminals.
1. Problem verification:
ο‘
ο‘
1. Turn the ignition switch to ON (II).
2. DO THE SEEK STOP TEST IN THE SOUND QUALITY DIAGNOSIS .
Is the test vehicle within 10 % of the known-good vehicle?
YES : Multipath interference or weak station. Operation is normal.
NO : The failure is duplicated, go to step 2.
2. Determine possible failure area (charging system and ignition system, others):
ο‘
1. Start the engine, and turn on the electrical loads one at a time (defrosters, seat heaters, blower
motor, etc.)
ο‘
2. Check the reception/interference while the engine is running.
Is there noise (static or whine) only with the engine running?
YES : Check the antenna, the antenna mounting nut, and radio grounds. If OK, check the charging system
and the ignition system.
NO : Go to step 3.
Is there any damage?
3. Determine possible failure area (AM/FM antenna mast, others):
ο‘
1. Turn the ignition switch to LOCK (0).
ο‘
2. Check the AM/FM antenna mast for cracks or other damage. Verify that the AM/FM antenna
mast is not loose.
NOTE:
Is there any damage?
Do not use any tools to tighten the AM/FM antenna mast.
YES : Replace the AM/FM antenna mast.
NO : Go to step 4.
4. Determine possible failure area (SWD +B line, AM/FM line):
ο‘
1. Disconnect the following connector.
AM/FM antenna 3P connector
ο‘
ο‘
ο‘
2. Turn the ignition switch to ON (II).
3. Turn on the audio system, and select AM or FM.
4. Measure the voltage between test points 1 and 2.
Test condition IG ON (II)
AM/FM antenna 3P connector: disconnected
Test circuit SWD +B
Test point 1 AM/FM antenna 3P connector No. 1
Test point 2 Body ground
Fig. 171: Measuring Voltage Between Test Point AM/FM Antenna 3P Connector No. 1 And
Body Ground
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Is there battery voltage?
YES : Go to step 5.
NO : Go to step 10.
5. Open wire check (AM/FM line):
ο‘
ο‘
1. Turn the ignition switch to LOCK (0).
2. Disconnect the following connector.
Audio unit connector D (3P)
ο‘
3. Check for continuity between test points 1 and 2.
Test condition IG LOCK (0)
AM/FM antenna 3P connector: disconnected
Audio unit connector D (3P): disconnected
Test circuit AM/FM
Test point 1 Audio unit connector D (3P) No. 2
Test point 2 AM/FM antenna 3P connector No. 2
Fig. 172: Checking For Continuity Between Test Point Audio Unit Connector D (3P) No. 2
And AM/FM Antenna 3P Connector No. 2
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Is there continuity?
YES : The AM/FM wire is not open. Go to step 6.
NO : Replace the AM/FM antenna lead and/or the sublead.
6. Shorted wire check (AM/FM line):
ο‘
1. Check for continuity between test points 1 and 2.
Test condition IG LOCK (0)
AM/FM antenna 3P connector: disconnected
Audio unit connector D (3P): disconnected
Test circuit AM/FM
Test point 1 Audio unit connector D (3P) No. 2
Test point 2 Body ground
Fig. 173: Checking For Continuity Between Test Point Audio Unit Connector D (3P) No. 2
And Body Ground
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Is there continuity?
YES : Replace the AM/FM antenna lead and/or the sublead.
NO : The AM/FM wire is not shorted to ground. Go to step 7.
7. Open wire check (SH (AM/FM) line):
ο‘
1. Check for continuity between test points 1 and 2.
Test condition IG LOCK (0)
AM/FM antenna 3P connector: disconnected
Audio unit connector D (3P): disconnected
Test circuit SH (AM/FM)
Test point 1 Audio unit connector D (3P) No. 3
Test point 2 AM/FM antenna 3P connector No. 3
Fig. 174: Checking For Continuity Between Audio Unit Connector D (3P) No. 3 And AM/FM
Antenna 3P Connector No. 3
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Is there continuity?
YES : The SH (AM/FM) wire is not open. Go to step 8.
NO : Replace the AM/FM antenna lead and/or the sublead.
8. Shorted wire check (AM/FM line to SH (AM/FM) line):
ο‘
1. Check for continuity between test points 1 and 2.
Test condition IG LOCK (0)
AM/FM antenna 3P connector: disconnected
Audio unit connector D (3P): disconnected
Test circuit AM/FM, SH (AM/FM)
Test point 1 Audio unit connector D (3P) No. 2
Test point 2 Audio unit connector D (3P) No. 3
Fig. 175: Checking For Continuity Between Test Point Audio Unit Connector D (3P) No. 2
And No. 3
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Is there continuity?
YES : Replace the AM/FM antenna lead and/or the sublead.
NO : Go to step 9.
9. Audio unit check:
ο‘
1. SUBSTITUTE A KNOWN-GOOD AM/FM ANTENNA , and recheck.
Does the symptom go away?
YES : Replace the original AM/FM antenna.
NO : REPLACE THE AUDIO UNIT .
10. Open wire check (SWD +B line):
ο‘
1. Turn the ignition switch to LOCK (0).
2. Disconnect the following connector.
ο‘
Audio unit connector D (3P)
ο‘
3. Check for continuity between test points 1 and 2.
Test condition IG LOCK (0)
AM/FM antenna 3P connector: disconnected
Audio unit connector D (3P): disconnected
Test circuit SWD +B
Test point 1 Audio unit connector D (3P) No. 1
Test point 2 AM/FM antenna 3P connector No. 1
Fig. 176: Checking For Continuity Between Test Point Audio Unit Connector D (3P) No. 1
And AM/FM Antenna 3P Connector No. 1
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Is there continuity?
YES : The SWD +B wire is not open. Go to step 11.
NO : Repair an open in the wire between the audio unit and the AM/FM antenna.
11. Shorted wire check (SWD +B line):
ο‘
1. Check for continuity between test points 1 and 2.
Test condition IG LOCK (0)
AM/FM antenna 3P connector: disconnected
Audio unit connector D (3P): disconnected
Test circuit SWD +B
Test point 1 AM/FM antenna 3P connector No. 1
Test point 2 Body ground
Fig. 177: Checking For Continuity Between Test Point AM/FM Antenna 3P Connector No. 1
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 audio unit and the AM/FM antenna.
NO : REPLACE THE AUDIO UNIT .
POOR OR NO SOUND WITH XM RADIO (AUDIO UNIT DOES DISPLAY XM CHANNELS)
Fig. 178: Audio System Symptom Troubleshooting Flowchart - Poor Or No Sound With XM Radio
(Audio Unit Does Display XM Channels)
Courtesy of AMERICAN HONDA MOTOR CO., INC.
NOTE:
ο¬
ο¬
CHECK THE VEHICLE BATTERY CONDITION FIRST .
Check the radio reception in an open area. Poor reception/interference can
be caused by tall buildings, mountains, or high-voltage power lines are
nearby.
ο¬
If you can only tune to channel 000, 001, and 174, make sure the audio unit
is set to channel mode (see the Owner's Manual), if it is set to channel
mode, call XM Radio customer support at 800-852-9696, and check the
account activation status.
ο¬
Check the connectors for poor connections or loose terminals.
1. Problem verification:
ο‘
ο‘
ο‘
1. Park the vehicle outside with a clear view of the southern horizon.
2. Turn the ignition switch to ON (II).
3. Turn on the audio unit, and set the proper XM radio station.
Does the XM radio play?
YES : Intermittent failure, the system is OK at this time.
NO : The failure is duplicated, go to step 2.
2. Disconnect the HFL unit and recheck:
ο‘
1. Turn the ignition switch to LOCK (0).
ο‘
2. Disconnect the HFL unit See HANDSFREELINK CONTROL UNIT REMOVAL AND
INSTALLATION or HANDSFREELINK CONTROL UNIT UPDATE and recheck.
Does the symptom go away?
YES : Replace the HFL control unit.
NO : Go to step 3.
3. Disconnect the multi-information display and retest:
ο‘
1. Turn the ignition switch to LOCK (0).
ο‘
2. DISCONNECT THE MULTI-INFORMATION DISPLAY and retest.
Does the symptom go away?
YES : Replace the multi-information display.
NO : Go to step 4.
4. Shorted wire check (GA AUDIO lines):
ο‘
1. Turn the ignition switch to LOCK (0).
2. Disconnect the following connectors.
ο‘
Audio unit connector C (14P)
XM receiver connector A (14P)
Multi-information display unit connector A (32P)
HandsFreeLink control unit 32P connector
ο‘
3. Check for continuity between these test points and body ground individually.
Test condition IG LOCK (0)
Audio 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
Connector
Test circuit
Terminal
GA AUDIO L+ No. 1 (RED)
GA AUDIO R+ No. 2 (GRN)
GA AUDIO L- No. 7 (WHT)
GA AUDIO R- No. 8 (BLK)
Audio unit connector C (14P)
Fig. 179: Identifying Audio Unit Connector C (14P)
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 unit and the XM receiver. Replace
the affected shielded harness.
NO : The GA AUDIO wires are not shorted to ground. Go to step 5.
5. Shorted wire check (SH GA AUDIO line to another lines):
ο‘
1. Check for continuity between test points 1 and 2.
Test condition IG LOCK (0)
Audio 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
Connector: Audio unit connector C (14P)
Test circuits
Test
point 1
Test points 2
SH GA AUDIO to GA AUDIO L+, GA AUDIO
R+, GA AUDIO L-, GA AUDIO R-
No. 3 No. 1 (RED), No. 2 (GRN), No. 7
(GRY) (WHT), No. 8 (BLK)
Fig. 180: Identifying Audio Unit Connector C (14P)
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 audio unit and the XM receiver. Replace the affected
shielded harness.
NO : The SH GA AUDIO wire is OK. Go to step 6.
6. Open wire check (GA AUDIO lines):
ο‘
1. Check for continuity between test points 1 and 2.
Test condition IG LOCK (0)
Audio 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 point 1: Audio unit connector C Test point 2: XM receiver connector A
Test circuit
(14P)
(14P)
GA AUDIO
L+
No. 1 (RED)
No. 1 (RED)
GA AUDIO
R+
GA AUDIO
L-
GA AUDIO
R-
No. 2 (GRN)
No. 7 (WHT)
No. 8 (BLK)
No. 2 (GRN)
No. 7 (WHT)
No. 8 (BLK)
Fig. 181: Identifying Audio Unit Connector C (14P)
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Fig. 182: Identifying XM Receiver Connector A (14P)
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Is there continuity?
YES : The GA AUDIO wires are OK. Go to step 7.
NO : There is an open in the wire(s) between the audio unit and the XM receiver. Replace the affected
shielded harness.
7. Audio unit check:
ο‘
1. SUBSTITUTE A KNOWN-GOOD XM RECEIVER , and recheck.
Does the symptom go away?
YES : Replace the original XM receiver.
NO : REPLACE THE AUDIO UNIT .
POOR OR NO SOUND WITH XM RADIO (AUDIO-NAVIGATION UNIT DOES DISPLAY XM
CHANNELS)
Fig. 183: Audio System Symptom Troubleshooting Flowchart - Poor Or No Sound With XM Radio
(Audio-Navigation Unit Does Display XM Channels)
Courtesy of AMERICAN HONDA MOTOR CO., INC.
NOTE:
ο¬
ο¬
CHECK THE VEHICLE BATTERY CONDITION FIRST .
Check the radio reception in an open area. Poor reception/interference can
be caused by tall buildings, mountains, or high-voltage power lines are
nearby.
ο¬
If you can only tune to channel 000, 001, and 174, make sure the audio-
navigation unit is set to channel mode (see the Owner's Manual), if it is set
to channel mode, call XM Radio customer support at 800-852-9696, and
check the account activation status.
ο¬
Check the connectors for poor connections or loose terminals.
1. Problem verification:
ο‘
1. Park the vehicle outside with a clear view of the southern horizon.
2. Turn the ignition switch to ON (II).
ο‘
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
