Diagnostic Procedure

VOICE OPERATION NOT POSSIBLE (ENTERTAINMENT SYSTEM) DIAGNOSTIC PROCEDURE

Step	Inspection	Results	Action
1	VERIFY ALL SYSTEM DTCs Perform the DTC inspection. (See DTC INSPECTION .) Are any DTCs displayed?	Yes	Repair or replace the malfunctioning location according to the applicable DTC troubleshooting.
1		No	Go to the next step.
2	INSPECT WIRING HARNESS (INCLUDING CONNECTOR/TERMINAL) BETWEEN EMERGENCY CALL UNIT AND EMERGENCY CALL SPEAKER/MICROPHONE FOR MALFUNCTION Inspect the applicable circuit. (see CIRCUIT INSPECTION .) (see CONNECTOR INSPECTION .) Is the circuit normal?	Yes	Go to the next step.
2		No	Repair or replace the malfunctioning location and perform the repair completion verification 1.
3	INSPECT WIRING HARNESS (INCLUDING CONNECTOR/TERMINAL) BETWEEN CONNECTIVITY MASTER UNIT (CMU) AND EMERGENCY CALL UNIT FOR MALFUNCTION Inspect the applicable circuit. (see CIRCUIT INSPECTION .) (see CONNECTOR INSPECTION .) Is the circuit normal?	Yes	Go to the next step.
3		No	Repair or replace the malfunctioning location and perform the repair completion verification 1.
Repair completion verification 1	VERIFY THAT VEHICLE IS REPAIRED Install/connect the part removed/disconnected during the troubleshooting procedure. Has the malfunction symptom been eliminated?	Yes	Complete the symptom troubleshooting. (Explain contents of repair to customer)
Repair completion verification 1		No	Perform the diagnosis from Step 1. If the malfunction is not resolved, replace the emergency call speaker/microphone, then go to the next step. (Refer to MICROPHONE REMOVAL/INSTALLATION .)
Repair completion verification 2	VERIFY THAT VEHICLE IS REPAIRED Install/connect the part removed/disconnected during the troubleshooting procedure. Has the malfunction symptom been eliminated?	Yes	Complete the symptom troubleshooting. (Explain contents of repair to customer)
Repair completion verification 2		No	Refer to the controller area network (CAN) malfunction diagnosis flow to inspect for a CAN communication error. (See MALFUNCTION DIAGNOSIS FLOW [CONTROLLER AREA NETWORK (CAN)] .) If the CAN communication is normal, perform the diagnosis from Step 1. If the malfunction is not resolved, replace the connectivity master unit (CMU), then go to the next step. (Refer to CONNECTIVITY MASTER UNIT (CMU) REMOVAL/INSTALLATION .)
Repair completion verification 3	VERIFY THAT VEHICLE IS REPAIRED Install/connect the part removed/disconnected during the troubleshooting procedure. Has the malfunction symptom been eliminated?	Yes	Complete the symptom troubleshooting. (Explain contents of repair to customer)
Repair completion verification 3		No	Refer to the controller area network (CAN) malfunction diagnosis flow to inspect for a CAN communication error. (See MALFUNCTION DIAGNOSIS FLOW [CONTROLLER AREA NETWORK (CAN)] .) If the CAN communication is normal, perform the diagnosis from Step 1. If the malfunction is not resolved, replace the emergency call unit. (Refer to appropriate service information .)