Inspection Procedure 3

Inspection Procedure 3: During the conversation with the hands-free system, the voice of other party cannot be heard.

FUNCTION
During the conversation with the hands-free system, the voice signal of other party is transmitted from the cellular phone to the hands-free module. Then, the signal is transmitted from the hands-free module to the radio and CD changer or audio visual navigation unit , and then output from the speaker.

TROUBLE JUDGMENT CONDITIONS
During the conversation with the hands-free system, if the voice of other party cannot be heard, the hands-free module, or the radio and CD changer or audio visual navigation unit may be defective.

TROUBLESHOOTING HINTS
- Malfunction of the hands-free module
- Malfunction of the radio and CD changer or audio visual navigation unit

DIAGNOSIS

STEP 1. Check the cellular phone. Check that the cellular phone can be used normally as a unit.

Q: Is it possible to use the cellular phone normally?

YES: Go to Step 2.

NO: Repair or replace the cellular phone.

STEP 2. Check the radio and CD changer or audio visual navigation unit .

Check that the sound of radio and CD changer or audio visual navigation unit is output normally from the speaker.

Q: Is the sound of radio and CD changer or audio visual navigation unit output normally from the speaker?

YES: Replace the hands-free module.

NO: Diagnose the radio and CD changer or audio visual navigation unit . Refer to Audio and Navigation System - Radio and CD player - Diagnosis or MMCS - Diagnosis .