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Home >> Toyota >> 2024 >> Corolla LE >> Repair and Diagnosis >> External Pages >> Different car >> Section 116 (Navigation System (2019-Early 2023) - Diagnostic Codes (1 Of 2)) >> Navigation System >> DTC B153A: GVIF Disconnected (from Extension Module to H/U) [01/2019 - 11/2022] >> Procedure

DTC B153A: GVIF Disconnected (from Extension Module to H/U) [01/2019 - 11/2022]: Procedure

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2023 Toyota GR Corolla, 2023 Toyota Corolla, 2022 Toyota Corolla, 2021 Toyota Corolla, and 2020 Toyota Corolla. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK MODEL 
    1. Choose the model to be inspected.

      Result

      Result Proceed to
      w/ Manual (SOS) Switch A
      w/o Manual (SOS) Switch B

    Result: 

    B 

    See step  6

    Result: 

    A 

    See step  2

  2. CHECK DTC 
    1. Clear the DTCs.

      Body Electrical > Navigation System > Clear DTCs 

    2. Turn the ignition switch off.
    3. Turn the ignition switch to ON.
    4. Press the "MAP" switch and check for DTCs.

      Body Electrical > Navigation System > Trouble Codes 

      OK

      No DTCs are output.

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    USE SIMULATION METHOD TO CHECK. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [06/2018 - ] 

    Result: 

    NG 

    See step  3

  3. CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - NAVIGATION ECU) 
    1. Disconnect the t3 navigation ECU connector.
      GTY852182Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to Radio and Display Receiver Assembly)
      *b Front view of wire harness connector
      (to Navigation ECU)
    2. Disconnect the t4 radio and display receiver assembly connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      t3-1 (GVO-) - t4-1 (GV2-) Always Below 1 Ω
      t3-2 (GVO+) - t4-2 (GV2+) Always Below 1 Ω
      t3-3 (GVG1) - t4-3 (GVG2) Always Below 1 Ω

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    OK 

    See step  4

  4. REPLACE NAVIGATION ECU 
    1. Replace the navigation ECU with a new one.

      Refer to REMOVAL [06/2018 - 03/2019] , or refer to REMOVAL [03/2019 - 11/2022]

      Result

      Proceed to
      NEXT

    Result: 

    NEXT 

    See step  5

  5. CHECK DTC 
    1. Clear the DTCs.

      Body Electrical > Navigation System > Clear DTCs 

    2. Turn the ignition switch off.
    3. Turn the ignition switch to ON.
    4. Press the "MAP" switch and check for DTCs.

      Body Electrical > Navigation System > Trouble Codes 

      OK

      No DTCs are output.

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    END (NAVIGATION ECU IS DEFECTIVE) 

    Result: 

    NG 

    REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY. Refer to  REMOVAL [01/2019 - 03/2019]  , or refer to  REMOVAL [03/2019 - 09/2022]  , or refer to  REMOVAL [09/2022 - 11/2022] 

  6. CHECK DTC 
    1. Clear the DTCs.

      Body Electrical > Navigation System > Clear DTCs 

    2. Turn the ignition switch off.
    3. Turn the ignition switch to ON.
    4. Press the "MAP" switch and check for DTCs.

      Body Electrical > Navigation System > Trouble Codes 

      OK

      No DTCs are output.

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    USE SIMULATION METHOD TO CHECK. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [06/2018 - ] 

    Result: 

    NG 

    See step  7

  7. CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - NAVIGATION ECU) 
    1. Disconnect the s1 navigation ECU connector.
      GTY929034Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to Radio and Display Receiver Assembly)
      *b Front view of wire harness connector
      (to Navigation ECU)
    2. Disconnect the s2 radio and display receiver assembly connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      s1-1 (GVO-) - s2-1 (GV2-) Always Below 1 Ω
      s1-2 (GVO+) - s2-2 (GV2+) Always Below 1 Ω
      s1-3 (GVG1) - s2-3 (GVG2) Always Below 1 Ω

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    OK 

    See step  8

  8. REPLACE NAVIGATION ECU 
    1. Replace the navigation ECU with a new one.

      Refer to REMOVAL [06/2018 - 03/2019] , or refer to REMOVAL [03/2019 - 11/2022]

      Result

      Proceed to
      NEXT

    Result: 

    NEXT 

    See step  9

  9. CHECK DTC 
    1. Clear the DTCs.

      Body Electrical > Navigation System > Clear DTCs 

    2. Turn the ignition switch off.
    3. Turn the ignition switch to ON.
    4. Press the "MAP" switch and check for DTCs.

      Body Electrical > Navigation System > Trouble Codes 

      OK

      No DTCs are output.

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    END (NAVIGATION ECU IS DEFECTIVE) 

    Result: 

    NG 

    REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY. Refer to  REMOVAL [01/2019 - 03/2019]  , or refer to  REMOVAL [03/2019 - 09/2022]  , or refer to  REMOVAL [09/2022 - 11/2022] 

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