Own Voice cannot be Heard, too Quiet or Distorted

1. Check if the other end can hear your voice properly.

OK: 

Own voice can be heard correctly. 

NG: REPLACE CELLULAR PHONE 

OK: Go To Next Step 

1. Check if the mute switch is set to ON.

OK: 

MUTE switch is not set to ON. 

NG: TURN MUTE SWITCH OFF 

OK: Go To Next Step 

1. Enter the "Microphone Check" mode (See DTC CHECK / CLEAR  ).
2. Follow the directions on the screen. Check if the word recognition indicator is displayed in green for each item.

Fig 1: Displaying Microphone Check

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NG: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE 

OK: REPLACE MULTI-DISPLAY