Honda HR-V: Poor AM Or FM Radio Reception Or Interference (Without Navigation)
NOTE:
- Check the vehicle 12 volt battery condition first.
- Check for aftermarket accessories plugged into the vehicle accessory
power sockets.
- 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:
- The radio station is far away
- Atmospheric conditions are unfavorable
- Tall buildings, mountains, or high-voltage power lines are nearby
- Aftermarket metallic window tinting or electronic accessories
- Check the connectors for poor connections or loose terminals.
1. Problem verification:
- Turn the vehicle to the ON mode.
- Do the Seek Stop Test in the Sound Quality Diagnosis - Refer to: Audio
System Sound Quality Diagnosis, or Audio System Diagnostic Mode (Without
Navigation,
Display Audio Type (7-inch Screen) ), or Audio System Diagnostic Mode
(Without Navigation, Color Audio Type (5-inch Screen) ).
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):
- Start the engine, and turn on the electrical loads one at a time
(defrosters, blower motor, etc.).
- Check the reception/interference while the engine is running.
Is there noise (static or whine) only with the engine running?
YES
Check the antenna and radio grounds. If OK, check the charging system and the
ignition system.
NO
Go to step 3.
3. Determine possible failure area (SWD +B line, AM/FM line):
- Disconnect the following connector.
Roof antenna 3P connector
- Turn the vehicle to the ON mode, and turn on the audio system.
- Measure the voltage between test points 1 and 2.
Is there battery voltage?
YES
The SWD +B wire is OK. Go to step 4.
NO
Go to step 9.
4. Open wire check (AM/FM line):
- Turn the vehicle to the OFF (LOCK) mode.
- Disconnect the following connector.
Audio unit connector E (3P)
- Check for continuity between test points 1 and 2.
Is there continuity?
YES
The AM/FM wire is not open. Go to step 5.
NO
Replace the AM/FM antenna lead and/or the sublead.
5. Shorted wire check (AM/FM line).
Check for continuity between test points 1 and 2.
Is there continuity?
YES
Replace the AM/FM antenna lead and/or the sublead.
NO
The AM/FM wire is not shorted. Go to step 6.
6. Shorted wire check (AM/FM line to SH (AM/FM) line).
Check for continuity between test points 1 and 2.
Is there continuity?
YES
Replace the AM/FM antenna lead and/or the sublead.
NO
The AM/FM wire is OK. Go to step 7.
7. Open wire check (SH (AM/FM) line).
Check for continuity between test points 1 and 2.
Is there continuity?
YES
The SH (AM/FM) wire is OK. Go to step 8.
NO
Replace the AM/FM antenna lead and/or the sublead.
8. Roof antenna check (substitution):
- Substitute a known-good roof antenna.
- Reconnect all the connectors, and recheck.
Does the symptom go away?
YES
Replace the original roof antenna.
NO
Replace the audio unit - Refer to: Audio Unit Removal and Installation
(Display Audio Type (7-inch Screen) ), or Audio Unit Removal and Installation
(Color Audio Type (5-inch Screen) ).
9. Open wire check (SWD +B line):
- Turn the vehicle to the OFF (LOCK) mode.
- Disconnect the following connector.
Audio unit connector E (3P)
- Check for continuity between test points 1 and 2.
Is there continuity?
YES
The SWD +B wire is not open. Go to step 10.
NO
Repair an open in the wire between the audio unit and the roof antenna.
10. Shorted wire check (SWD +B line).
Check for continuity between test points 1 and 2.
Is there continuity?
YES
Repair a short to body ground in the wire between the audio unit and the roof
antenna.
NO
Replace the audio unit - Refer to: Audio Unit Removal and Installation
(Display Audio Type (7-inch Screen) ), or Audio Unit Removal and Installation
(Color Audio Type (5-inch Screen) ).
READ NEXT:
NOTE:
Check the vehicle 12 volt 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 l
NOTE:
Check the vehicle 12 volt battery condition first.
You can select three different rearview camera angles for backing up. If
there is no camera image on the display, go to Audio System Sympt
NOTE:
Check the vehicle 12 volt battery condition first.
Check the connectors for poor connections or loose terminals.
1. Problem verification:
Turn the vehicle to the ON mode.
Shift the transm
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side airbag, side curtain airbag, seat belt outer lap tensioner and seat belt
tensioner.
i-SRS Airbag System (Driver's and Front Passenger's Airbag)
In case of a frontal collision, the i-SRS airbag system uses a seat belt
Door Lock Switch
The door lock switch is integrated into one unit to the power window master
switch.
Door Lock Knob Switch/Door Lock Actuator/Driver's Door Key Cylinder Switch
The door lock knob switch and the door lock actuator are built into the door
latch of each door. The door lock
knob switch