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.

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