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Home >> Toyota >> 2024 >> Corolla LE >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 10 (Safety Connect System (HEV) - Diagnostic Codes, Symptom Tests & Circuit Tests) >> SAFETY CONNECT SYSTEM (for HV Model) >> Unable To Connect To Call Center [04/2020 - ] >> Procedure

Unable To Connect To Call Center [04/2020 - ]: Procedure

WARNING: This page is about a different variant/trim than selected.
  1. CHECK COMMUNICATION SERVICE CONDITION 
    1. Move the vehicle.
      1. If the vehicle is outside the communication service area, move the vehicle to a communication service area, wait for a while and perform the operation again.

        OK

        Same problem does not occur.

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    END 

    Result: 

    NG 

    See step  2

  2. CHECK DTC 
    1. Turn the power switch off.
    2. Connect the Techstream to the DLC3.
    3. Turn the power switch on (IG) and wait for 10 seconds or more.
    4. Turn the Techstream on.
    5. Clear the DTCs.

      Body Electrical > Telematics > Clear DTCs 

    6. Check for DTCs and check that no DTCs are output.

      Body Electrical > Telematics > Trouble Codes 

      OK

      No DTCs are output.

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    GO TO DIAGNOSTIC TROUBLE CODE CHART 

    Refer to DIAGNOSTIC TROUBLE CODE CHART [04/2020 - 09/2022] , or refer to DIAGNOSTIC TROUBLE CODE CHART [09/2022 - ]

    Result: 

    OK 

    See step  3

  3. CHECK DCM OPERATION HISTORY 
    1. Check "DCM Operation History".

      Refer to DCM OPERATION HISTORY [04/2020 - ]

      Result

      Result Proceed to
      The value of "Electric Level" is low (Level 0 or Level 1) A
      No problems with signal strength or communication B

      HINT: 

      If there was a communication problem in the past but the communications are working correctly now, it is possible that the source of the problem was temporary radio interference, or the vehicle may have been outside the service area.

    Result: 

    CONTACT SERVICE CENTER 

    Result: 

    See step  4

  4. REPLACE DCM (TELEMATICS TRANSCEIVER) 
    1. Replace the DCM (telematics transceiver) with a new one.

      Refer to REMOVAL [04/2020 - 09/2022] , or refer to REMOVAL [09/2022 - 11/2022] , or refer to REMOVAL [11/2022 - 09/2024] , or refer to REMOVAL [09/2024 - ]

      NOTE:
      • The power switch must be off.
      • Do not exchange the DCM (telematics transceiver) with one from another vehicle.

      Result

      Proceed to
      NEXT

    Result: 

    NEXT 

    PERFORM DCM ACTIVATION 

    Refer to DCM ACTIVATION [04/2020 - ]