Diagnostic Test: Mic Level
- Always make sure that the correct DVD color and version are installed.
- Check any official Honda service website for more service information about the navigation system.
- Before assuming that a voice complaint is hardware related, ensure that the voice control system is being operated correctly.
- Make sure you are on the correct screen when trying to issue a voice command. For instance, the command "Find the nearest Italian Restaurant" only works on Map screen. (See the Navigation System manual for a complete list of allowed voice commands for the information being displayed).
- Close the windows and sunroof.
- Set the fan speed to low (1 or 2).
- Adjust the air flow from the air conditioning vents so that they do not blow against the microphone on the ceiling.
- Pause after pressing the TALK button then give a voice command clearly in a natural speaking voice. If the system cannot recognize your command, speak louder.
- If the microphone picks up voices other than yours, the system may not interpret your voice commands correctly.
- If you speak a command with something in your mouth, or your voice is too husky, the system may misunderstand your command.
- Always check the connectors for poor connections or loose terminals.
- Check for a loose roof console microphone; if it's loose, tighten it.
- Before troubleshooting, write down the audio presets, and get the audio and navigation system anti-theft codes.
- After troubleshooting, enter the audio and navigation system anti-theft codes, and the audio presets.
- Determine if the problem only happens to one person, or everyone who uses the system.
- If the system only has a problem with one person's voice, this should be considered a system limitation.
- Turn the ignition switch ON (II).
- Go into the Diagnostic Menu and use the "Mic Level" test the under Functional Setup (see FUNCTIONAL SETUP
) to check the operation of the TALK and BACK buttons.
Are the TALK and BACK buttons operational?
YES - Go to step 11.
NO - Go to step 3.
- Turn the ignition switch to LOCK (0).
- Disconnect HFL-voice control switch 5P connector.
- Do the HFL-voice control switch test (see
HFL SWITCH/HFL-VOICE CONTROL SWITCH TEST/REPLACEMENT
).
Is the voice control switch OK?
YES - Go to step 6.
NO - Replace the HFL-voice control switch.
- Disconnect navigation unit connector B (14P).
- Check for continuity between navigation unit connector B (14P) terminals No. 10 and body ground.Fig 1: Checking Continuity Between Navigation Unit Connector B (14P) Terminals No. 10 And Body Ground
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Is there continuity?
YES - Repair short to body ground in the wire between navigation unit and the HFL-voice control switch. If the wire is OK, replace the cable reel.
NO - Go to step 8.
- Check for continuity between navigation unit connector B (14P) terminal No. 10 and HFL-voice control switch 5P connector terminal No. 1.Fig 2: Checking Continuity Between Navigation Unit Terminal No. 10 And HFL-Voice Control Switch 5P Terminal No. 1
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Is there continuity?
YES - Go to step 9.
NO - Repair open in the wire between navigation unit and the HFL-voice control switch. If the wire is OK, replace the cable reel.
- Remove the audio-HVAC display module (see
AUDIO-HVAC DISPLAY MODULE REMOVAL/INSTALLATION
), and disconnect the audio unit connector A (20P).NOTE: Eject all the discs before removing the audio unit to prevent damaging the CD player's load mechanism.
- Check for continuity between audio unit connector A (20P) terminals No. 11 and HFL-voice control switch 5P connector terminal No. 2.Fig 3: Checking Continuity Between Audio Unit (20P) Terminals No. 11 And HFL-Voice Control Switch 5P Terminal No. 2
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Is there continuity?
YES - Substitute a known-good navigation unit and recheck. If the symptom/indication goes away, replace the original navigation unit. If the symptom/indication is still present, replace the audio unit.
NO - Repair open in the wire between navigation unit and the HFL-voice control switch. If the wire is OK, replace the cable reel.
- Use the "Mic Level" diagnostic under Functional Setup (see FUNCTIONAL SETUP
) to check the operation of the microphone.
Is the microphone operational?
YES - Check the operation of the voice control system (see the Navigation System Manual).
NO - Go to step 12.
- Check the HandsFreeLink system.
Is the HandsFreeLink system OK?
YES - Go to step 13.
NO - Do the HandsFreeLink system troubleshooting.
- Turn the ignition switch to LOCK (0).
- Disconnect navigation unit connector B (14P) and HandsFreeLink control unit 22P connector.
- Check for continuity between body ground and navigation unit connector B (14P) terminals No. 6 and No. 14 individually.Fig 4: Checking Continuity Between Body Ground And Navigation Unit Connector B (14P) Terminals No. 6 And No. 14
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Is there continuity?
YES - Short to body ground in the wire between navigation unit and HandsFreeLink control unit. Replace the affected shielded harness.
NO - Go to step 16.
- Check for continuity between navigation unit connector B (14P) according to the table.CONNECTOR TERMINALS REFERENCE
From terminals To terminals B6 B13, B14 B13 B14 Is there continuity between any of the terminals?
YES - Short in the wire(s) between navigation unit and HandsFreeLink control unit. Replace the affected shielded harness.
NO - Go to step 17.
- Check for continuity between navigation unit connector B (14P) and HandsFreeLink control unit 22P connector according to the table.CONNECTOR TERMINALS REFERENCE
Navigation unit connector HandsFreeLink control unit connector B6 21 B13 20 B14 22 Fig 6: Checking Continuity Between Navigation Unit Connector B (14P) And Hands Free Link Control Unit 22P ConnectorCourtesy of AMERICAN HONDA MOTOR CO., INC.
Is there continuity?
YES - Substitute a known-good navigation unit and recheck. If the symptom/indication goes away, replace the original navigation unit. If the symptom/ indication is still present, replace the HandsFreeLink control unit.
NO - Open in the wire(s) between navigation unit and HandsFreeLink control unit. Replace the affected shielded harness.