Diagnostic Procedure

VEHICLE HAS POOR WAVE SIGNAL RECEPTION SENSITIVITY (TELEMATICS COMMUNICATION 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 TEL ANTENNA No. 1 AND TELEMATICS COMMUNICATION UNIT 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 TEL ANTENNA No. 2 AND TELEMATICS COMMUNICATION 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.
4	INSPECT TELEMATICS COMMUNICATION UNIT FOR SIM MALFUNCTION Verify the following PID items using the M-MDS. (See PID/DATA MONITOR INSPECTION .) Telematics communication unit TEL1_ANT_6LVL TEL2_ANT_6LVL Are the monitor values of both TEL1_ANT_6LVL and TEL2_ANT_6LVL 0 (out of range)?	Yes	Replace the telematics communication unit and perform the repair completion verification 1. (Refer to TELEMATICS COMMUNICATION UNIT REMOVAL/INSTALLATION in service information.)
4		No	Only TEL1_ANT_6LVL is 0 (out of range): Replace the TEL antenna No. 1 and perform the repair completion verification 1. Only TEL2_ANT_6LVL is 0 (out of range): Replace the TEL antenna No. 2 and perform the repair completion verification 1. Both TEL1_ANT_6LVL and TEL2_ANT_6LVL are not 0 (out of range): 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	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 telematics communication unit. (Refer to TELEMATICS COMMUNICATION UNIT REMOVAL/INSTALLATION in service information.)