TELEMATICS  TELEMATICS SYSTEM  HOW TO PROCEED WITH TROUBLESHOOTING  

The telematics system provides a variety of functions. Therefore, it is important to identify whether a malfunction is related to the communication system, including radio wave conditions, or any other systems. Carefully check the conditions that caused the malfunction in order to determine if a temporary problem with the radio wave signal conditions caused the malfunction.

Measure the auxiliary battery voltage with the ignition switch off.

Standard voltage:

11 to 14 V

HINT:

If the voltage is below 11 V, recharge or replace the auxiliary battery before proceeding to the next step.

Use the GTS to check if the CAN communication system is functioning normally.

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Result:

Result	Proceed to
CAN communication system DTCs are not output.	A
CAN communication system DTCs are output.	B

Check for DTCs.

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Body Electrical > Telematics > Trouble Codes

50001 459

Check for vehicle control history and note any codes that are output.

Body Electrical > Telematics > Utility

Tester Display
Vehicle Control History (RoB)

50005 459 55

Refer to Problem Symptoms Table.

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Result:

Result	Proceed to
Fault is listed in Problem Symptoms Table.	A
Fault is not listed in Problem Symptoms Table.	B

HINT:

If the symptom does not recur and no DTCs are output, perform the simulation method.

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Refer to Terminals of ECU.

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Adjust, repair or replace as necessary.

NOTICE:

Depending on the parts that are replaced during vehicle inspection or maintenance, performing initialization, registration or calibration may be needed. Refer to Precaution for Telematics System.

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