Diagnostic Test: Mic Level
- Check the vehicle battery condition first (see BATTERY TEST ).
- Check the connectors for poor connections or loose terminals.
- Make sure that the correct navigation DVD color and version are installed.
- Check any official Honda service website for more service information about the navigation system.
- Before troubleshooting, make sure you have the anti-theft code for the audio system and the navigation system.
- After troubleshooting, enter the anti-theft code for the audio system and 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.
- Check for a loose roof console microphone; if it's loose, tighten it.
- 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 navigation TALK button, then give a voice command clearly in a natural speaking voice.
- If the system only has a problem with one person's voice, this should be considered a system limitation.
- If you speak a command with something in your mouth, or your voice is too husky or high pitched, the system may misunderstand your command.
- Set the fan speed to low (1 or 2).
- Determine if the problem only happens to one person, or everyone who uses the system.
- Turn the ignition switch to LOCK (0).
- Connect the HDS to the DLC (see GENERAL TROUBLESHOOTING INFORMATION ).
- Turn the ignition switch to ON (II).
- Connect the HDS and check for CAN related DTCs.
Are there any DTCs present?
YES -Troubleshoot the DTC, then recheck. ■
NO -Go to step 5.
- Check the HFL system operation making sure that the HFL system responds to voice commands.
Does the HFL system operate correctly and respond to voice commands properly?
YES -Go to step 6.
NO -Troubleshoot the HFL system. ■
- Go into the System Diagnostic Mode (see SYSTEM DIAGNOSTIC MODE ), and use the Mic Level test under Functional Setup (see FUNCTIONAL SETUP ) to check the operation of the navigation TALK and navigation BACK buttons.
Are the NAVIGATION TALK and NAVIGATION BACK buttons operational?
YES -Go to step 13.
NO -Go to step 7.
- Check the audio remote switch operation (volume up, volume down, CH (+), CH (-), MODE).
Is the audio remote switch operational?
YES -Go to step 8.
NO -Go to Audio remote switch does not work properly troubleshooting (see AUDIO REMOTE SWITCH DOES NOT WORK PROPERLY (EXCEPT 1 CD TYPE) ).
- Turn the ignition switch to LOCK (0).
- Do the voice control switch test (see VOICE CONTROL SWITCH TEST ).
Is the voice control switch OK?
YES -Go to step 10.
NO -Replace the navigation voice control switch (see), and recheck the symptom. ■
- Disconnect navigation unit connector C (16P) and voice control switch 5P connector.
- Check for continuity between navigation unit connector C (16P) terminal No. 12 and body ground.
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Is there continuity?
YES -Repair short to body ground in the wire between the navigation unit and the voice control switch. ■
NO -Go to step 9.
- Check for continuity between navigation unit connector C (16P) terminal No. 12 and voice control switch 5P connector terminal No. 2.Fig 2: Checking Continuity Between Navigation Unit Connector C (16P) Terminal 12 And Voice Control Switch 5P Connector Terminal 2
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Is there continuity?
YES -Go to step 13.
NO -Repair open in the wire between the navigation unit and the 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 (seethe Navigation System Manual) and compare system operation with a known-good vehicle. ■
NO -Go to step 14.
- Check the HandsFreeLink system.
Is the HandsFreeLink system OK?
YES -Go to step 15.
NO -Do the HandsFreeLink system troubleshooting. ■
- Turn the ignition switch to LOCK (0).
- Disconnect navigation unit connector C (16P).
- Disconnect HandsFreeLink control unit 28P connector.
- Check for continuity between navigation unit connector C (16P) terminal No. 8 and body ground.
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Is there continuity?
YES -There is a short to body ground in the wire between navigation unit and HandsFreeLink control unit. Replace the affected shielded harness. ■.
NO -Go to step 19.
- Check for continuity between navigation unit connector C (16P) according to the table.TERMINAL REFERENCE
From terminal (Wire color) To terminals C8 (GRN) C15(1) C15 (GRY)(1) C8 (1) Shielding Courtesy of AMERICAN HONDA MOTOR CO., INC.
Is there continuity between any of the terminals?
YES -There is a short in the wires between navigation unit and HandsFreeLink control unit. Replace the affected shielded harness. ■
NO -Go to step 20.
- Check for continuity between navigation unit connector C (16P) and HandsFreeLink control unit 28P connector according to the table.WIRE COLOR REFERENCE
Navigation unit connector HandsFreeLink control unit connector Wire color C8 No. 27 GRN Courtesy of AMERICAN HONDA MOTOR CO., INC.
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Is there continuity?
YES -Substitute a known - good navigation unit (see NAVIGATION UNIT REMOVAL/INSTALLATION ), and recheck. If the symptom/indication goes away, replace the original navigation unit (see NAVIGATION UNIT REMOVAL/INSTALLATION ). If the symptom/indication is still present, replace the HandsFreeLink control unit (see CONTROL UNIT INPUT TEST/REPLACEMENT ). ■
NO -There is an open in the wire(s) between the navigation unit and the HandsFreeLink control unit. Replace the affected shielded harness.