Honda HR-V: Unit Check (Quick Check) - Navigation System Diagnostic Mode
These screens allow you to diagnose the audio-navigation unit and related
units. Some of the tests and screens that are displayed under the Unit Check are
same as the checks listed
under the Detail Information & Setting.
To start the test, select the item you want to check.
NOTE: These items describe in indication order.
- DA Unit
- F-CAN
- B-CAN
- USB
- SD
- Vehicle Status
- HFT/Mic
- Hard Key
- Error History
- Rear Wide Camera
- LaneWatch (with LaneWatch)
- Radio
- HD Radio
- XM
- Display
- A/C
- GPS Antenna
- HD Traffic
- Yaw Sensor
- MirrorLink
- iPhone
DA Unit
This diagnosis looks for problems in the audio-navigation unit ECU. When you
start this diagnosis, the audio-navigation unit may freeze or delay up to a
minute while the diagnosis
runs.
- D-RAM: Displays the result of the access to the D-RAM (OK/NG). If NG,
replace the audio-navigation unit.
- Model: For this model, the field should begin with T7A.
- Serial No. : Displays the audio-navigation unit serial number. That
should be the same as the serial number found on the upper side of the
audio-navigation unit.
- Flash: Displays the result of the access to the flash memory (OK/NG). If
NG, replace the audio-navigation unit.
F-CAN
NOTE: This diagnosis must have the engine running.
This diagnosis checks whether the audio-navigation unit has received specific
F-CAN data. If F-CAN shows NO ERROR, an error is not detected between the F-CAN
bus and the
audio-navigation unit.
- If F-CAN shows RX ERROR, replace the audio-navigation unit.
- If F-CAN shows TIME OUT, There is a possibility that some items are NG
(red icon). When all the items from each transmitting unit is NG, check for
F-CAN DTCs with the
HDS. If DTCs not detected, check for continuity in the F-CAN lines between
the audio-navigation unit and the transmitting unit.
NOTE: When the item is a variation equipment, the item shows NG (yellow
icon), and it is not reflected in diagnosis.
B-CAN
NOTE: This diagnosis must have the engine running.
This diagnosis checks whether the audio-navigation unit has received specific
B-CAN data. If B-CAN shows NO ERROR, an error is not detected between the B-CAN
bus and the
audio-navigation unit.
- If B-CAN shows RX ERROR, replace the audio-navigation unit.
- If B-CAN shows TIME OUT, There is a possibility that some items are NG
(red icon). When all the items from each transmitting unit is NG, check for
B-CAN DTCs with the
HDS. If DTCs not detected, check for continuity in the B-CAN lines between
the audio-navigation unit and the transmitting unit.
NOTE: When the item is a variation equipment, the item shows NG (yellow
icon), and it is not reflected in diagnosis.
USB
This diagnosis displays the USB device status that is connected to the
audio-navigation unit.
If the USB memory device is connected to the USB port, the screen displays the
USB controller status, the Bus power status, and the device status.
When you connect a USB mass storage device, you can see the capacity used and
the amount of free space available.
SD
This diagnosis checks the SD card module status.
- Connection Status (A): Displays the result of the insert status about
the SD card module (OK; Inserted, NG; Not Inserted).
- Access Status: Displays the result of the access to the SD card module
(OK/NG). If NG, replace the SD card module, and recheck.
Vehicle Status
Use this screen to confirm that the audio-navigation unit is properly
receiving input signals. The displayed value changes each time according to the
state of input signal.
NOTE: These items describe in indication order.
HFT/Mic
This diagnosis allows you to independently test the Bluetooth module and
microphone. The Bluetooth module and the microphone are built into the audio
panel. To properly check
the microphones, make sure you are sitting in the driver's seat.
If the Bluetooth Connection Diagnosis shows NG, replace the audio panel. Press
the TALK button, and in a normal voice say "testing" within 5 seconds. The Mic
Level indicator
on the screen should momentarily turn green. If there is no Mic Level movement
when you speak, go to HFL does not respond troubleshooting - Refer to:
HandsFreeLink System
Symptom Troubleshooting - HFL does not respond (With Navigation), or
HandsFreeLink System Symptom Troubleshooting - HFL does not respond (Without
Navigation,
Display Audio Type (7-inch Screen) ), or HandsFreeLink System Symptom
Troubleshooting - HFL does not respond (Without Navigation, Color Audio Type
(5-inch
Screen) ).
If you select the Transmitter Volume Change icon, the transmitter volume can
be selected from three selection (Large, Middle, Small).
Hard Key
This diagnosis checks the audio-navigation unit hard buttons, face switches
(AUDIO, HOME, MENU, VOL+, VOL-, BACK), the audio remote switch, and the HFL
switch.
To complete the test, press each buttons. As each function is tested, the
corresponding button on the display should highlight.
- If any button of the audio-navigation unit does not respond, replace the
audio panel or the audio-navigation unit.
- If any button of the audio remote switch does not respond, do the audio
remote switch test.
- If any button of the HFL switch does not respond, do the HFL switch
test.
Error History
If you select Hard Error or Soft Error, you can see the error information.
Refer to How to Check for Error History to use this diagnosis.
Rear Wide Camera
This diagnosis checks the rearview camera connection.
- If Connection shows NG, check for hard error codes.
- If Connection shows OK, press the HOME button to display the rearview
camera image. To return to the previous screen, press the HOME button again.
LaneWatch
This diagnosis checks the LaneWatch camera connection.
- If Connection shows NG, check for hard error codes.
- If Connection shows OK, press the HOME button to display the LaneWatch
camera image. To return to the previous screen, press the HOME button again.
Radio
This diagnosis displays the radio tuner status.
NOTE: When the radio tuner is built in the audio-navigation unit, a
diagnostic result is displayed as always OK.
- Frequency can be changed by selecting each icon (A).
- Source can be changed in this order: AM→FM by selecting the Band Change
icon.
- Electric Field Intensity displays radio reception sensitivity (dB-V).
HD Radio
This diagnosis displays the radio tuner status.
NOTE: When the radio tuner is built in the audio-navigation unit, a
diagnostic result is displayed as always OK.
- Frequency can be changed by selecting each icon (A).
- Source can be changed in this order: AM→FM by selecting the Band Change
icon.
- Electric Field Intensity displays radio reception sensitivity (dB-V).
XM
This diagnosis checks the GA-Net bus between the audio-navigation unit and
the XM receiver.
If Connection shows NG, the connection may be open or short between the XM
receiver and the audio-navigation unit. Check for hard error codes.
Display
This diagnosis checks the display controller. In this model, OK is always
indicated.
A/C
This diagnosis detects if the vehicle is in ON mode using information
provided over the F-CAN bus, then it tests the climate control signal via the
B-CAN bus between the audio-navigation
unit and the climate control unit. Make sure the engine is running for this
test.
If Connection shows NG, check for hard error codes.
GPS Antenna
This diagnosis checks the GPS antenna connection.
If Antenna shows NG, the GPS antenna may be failure. Check for hard error codes.
Select Information to see the GPS satellite details.
HD Traffic
This diagnosis displays the HD traffic status.
- Service Status: Displays the HD traffic service status on (1) or off
(except 1).
- Frequency can be changed by selecting each icon (A).
- Electric Field Intensity displays radio reception sensitivity (dB).
- Receive Status: Displays the reception status of HD traffic.
- 01h: Reception is stopped
- 02h: Seek station
- 03h: Under reception
- Reserved: Other status
Yaw Sensor
This diagnosis checks the gyro and the acceleration sensor in the
audio-navigation unit. This devices detect how the vehicle moves, and
repositions the vehicle position icon on the
map screen. Select the item you want to check.
Yaw Rate
- Sensor: Indicates the voltage output from the gyro. It should indicate
about 2.100 V- 2.900 V when the vehicle is stopped.
- Offset: Indicates the reference voltage or standard within the gyro. It
also should indicate about 2.100 V- 2.900 V when the vehicle is stopped.
- The Offset and Sensor should both indicate about 2.100 V- 2.900 V
when the vehicle is stopped. If either reads below 2.100 V, or above
2.901 V, replace the audio-navigation unit.
- The Offset and Sensor should be within +/-0.05 V of each other when
the vehicle is stopped. The Sensor value should change relative to the
Offset as the vehicle turns while driving. If not, replace the
audio-navigation unit.
- A sensor voltage higher than the offset voltage indicates that the
vehicle is turning to the right.
- A sensor voltage lower than the offset voltage indicates that the
vehicle is turning to the left.
- Temperature: Indicates the temperature of the gyro.
- Auto Tuning: For factory use only. This setting should be On.
- Learning Level: Displays the status of the internal tuning function. At
initialization, this value starts at 0 and increases to 10 as the internal
correction values become more
accurate.
- CCW Factor, CW Factor: For factory use only.
- Gyro AD: Displays the result of the AD value (OK/NG). If NG, check for
hard error codes.
- Gyro Zero: Displays the result of the zero point output voltage (OK/NG).
If NG, check for hard error codes.
Slant Angle Sensor
- Offset: Indicates the reference voltage or standard within the acceleration
sensor. It also should indicate about 1.550 V - 2.350 V when the vehicle is
stopped.
- Sensor: Indicates the voltage output from the acceleration sensor. It should
indicate about 1.550 V - 2.350 V when the vehicle is stopped.
- The Offset and Sensor should both indicate about 1.550 V - 2.350 V
when the vehicle is stopped. If either reads below 1.550 V, or above
2.351 V, replace the audio-navigation unit.
- A sensor voltage higher than the offset voltage indicates that the vehicle is
stopped on an upward slope.
- A sensor voltage lower than the offset voltage indicates that the vehicle is
stopped on a downward slope.
MirrorLink
This screen shows the information about the connected smartphone by
MirrorLink.
iPhone
This screen shows the information about the connected iPhone(R) by
App Mode.
READ NEXT:
These screens allow you to troubleshoot the audio function. The ANC Check is
not supported in this model.
Speaker Check
NOTE:
Make sure the audio system is off before this diagnosis.
While doing
Select the item you want to check.
Backup Data Clear
Save Users Memory
LaneWatch (with LaneWatch)
Photo Picture
Anti-Theft Skip
Other
Backup Data Clear
This screen initializes the back-up dat
AUDIO SYSTEM ERROR CODES
The audio system can display a few error codes when some problems are
detected with the audio disc player and the audio disc. This is not a complete
list of audio error code
SEE MORE:
NOTE: Examples used in this article are general in nature and do not
necessarily relate
to a specific engine or system. Illustrations and procedures have been chosen
to guide mechanic through engine overhaul process. Descriptions of processes
of cleaning, inspection, assembly and machine shop pract
Removal & Installation
A-Pillar Trim
1. A-Pillar Trim - Remove
Remove the front door opening seal (A) as needed
Remove the A-pillar trim (B).
2. All Removed Parts - Install
Install the parts reverse order of removal.
B-Pillar Upper/Lower Trim
3. Front Door Sill Trim - Remove - Refer to: