Inspection Procedure 3: When the speech switch is pressed, the voice guide is output, but the voice recognition is not performed. < Vehicles with MMCS >: Diagnosis

WARNING: This page is about a different car, the 2014 Mitsubishi Outlander. However, it is still accessible from the selected car via links, so may be relevant.

Required Special Tools:

MB991223: Harness Set
MB992006: Extra Fine Probe

STEP 1. Retest the system
Close all the windows to suppress external noise as much as possible. Then check whether the voice recognition operates normally when you utter a word as close to the microphone unit as possible

Q: Is the check result normal?
- YES: Diagnosis complete.
- NO: Go to Step 2
STEP 2. Check the diagnosis mode
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 > < Vehicles with MMCS >.)

Q: Is the check result normal?
- YES: Go to Step 5
- NO: Go to Step 3
STEP 3. Check of short to power supply, short to ground, and open circuit in MIC+, MIC- line between multivision display connector and microphone unit connector.
Q: Is the check result normal?
- YES: Go to Step 4
- NO: Repair the connector(s) or wiring harness.
STEP 4. Check of short to power supply, short to ground, and open circuit in MIC+, MIC- line between multivision display connector and hands free module connector.
Q: Is the check result normal?
- YES: Go to Step 5
- NO: Repair the connector(s) or wiring harness.
STEP 5. Replace the microphone unit temporarily, and check the trouble symptom.
Q: Is the check result normal?
- YES: Replace the microphone unit.
- NO: Go to Step 6
STEP 6. Replace the hands free module temporarily, and check the trouble symptom.
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 ).