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Inspection Procedure 8: SOS emergency assist/information assist does not connected (It can start the calling to the telematics call center).
 
 
caution
  • Park the vehicle in an open area where radio wave is not shielded.
  • When replacing the ECU, always check that the communication circuit is normal.
 
 
TECHNICAL DESCRIPTION (COMMENT)
If SOS emergency assist/information assist does not connected (It can start the calling to the telematics call center), there is a possibility that the vehicle is in a place not suitable for communication, a defect in the GNSS/TEL antenna assembly or a defect in the TCU.
 
 
TROUBLESHOOTING HINTS
  • The vehicle is in a place not suitable for communication
  • The GNSS/TEL antenna assembly may be defective
  • The TEL antenna assembly may be defective
  • The TCU may be defective
noteAdditionally, there are the following two reasons.
  • A pair of TCU and Vehicle Identification Number (VIN) information is registered into the server. If installing the TCU, already registered once into the server, to another vehicle, you cannot connect the server because the VIN information is not verified.
  • When the ignition switch is turned on, the TCU will send the VIN information to the server and can communicate with the server.
 
 
DIAGNOSIS
STEP 1. Confirm that the vehicle is parked properly.
Check that the vehicle is parked in an open area.
Is the check result normal?
Go to Step 2.
Move the vehicle to an open area. Then go to Step 2.
 
STEP 2. Check test mode.
Execute "Test report" in the test mode (Refer to ).
OK: After the automatic voice flows for a predetermined time, the call is completed.
Is the check result normal?
Since it is a problem of the radio wave environment and not a failure of the TCU, contact the telematics call center to report the vehicle state (Refer to "USER TROUBLESHOOTING FLOW" ).
Replace the GNSS/TEL antenna assembly (Refer to ) or TEL antenna assembly (Refer to ). Then go to Step 3.
 
STEP 3. Retest the system.
Is the check result normal?
The procedure is complete.
Replace the TCU (Refer to ).