INSPECTION PROCEDURE 3: When The Speech Switch Is Pressed, The Voice Information Is Output, But The Voice Recognition Is Not Performed - Vehicles With MMCS: Diagnosis

Check if the microphone check result "HFM MIC Check" is displayed on the diagnosis mode of hands free module. (Refer to DIAGNOSIS MODE < VEHICLES WITH MMCS >  .)

Q: Is the check result normal? 

• YES:  Go to  Step 4.
• NO:  Go to Step 2.

Q: Are multivision display C-136 and microphone unit connector E-07 in good condition? 

• YES:  Go to Step 3.
• NO:  Repair or replace the damaged component(s). Refer to HARNESS CONNECTOR INSPECTION .

• Check the signal lines for open circuit and short circuit.
  NOTE: Also check intermediate connectors C-226 and C-135 for loose, corroded, or damaged terminals, or terminals pushed back in the connector. If intermediate connectors C-226 and C-135 is damaged, repair or replace the connector as described in GROUP 00E, Harness Connector Inspection P.00E-2.

Q: Is the wiring harness between multivision display C-136 (terminal 54, 53) and microphone unit connector E-07 (terminal 2, 1) in good condition? 

• YES:  Go to Step 4.
• NO:  The wiring harness may be damaged or the connector(s) may have loose, corroded or damaged terminals, or terminals pushed back in the connector. Repair the wiring harness as necessary.

Q: Is the check result normal? 

• YES:  Replace the microphone unit.
• NO:  Go to Step 5.

Q: Is the check result normal? 

• YES:  Replace the hands free module.
• NO:  The trouble can be an intermittent malfunction (Refer to HOW TO COPE WITH INTERMITTENT MALFUNCTION ).