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Check Bus 3 Line [11/2023 - ]: Procedure

WARNING: This page is about a different car, the 2025 Toyota Corolla Cross, 2024 Toyota Corolla Cross, and 2023 Toyota Corolla Cross. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK FOR OPEN IN CAN MAIN BUS LINES 
    1. Disconnect the cable from the negative (-) auxiliary battery terminal.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1117708Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component with harness connected
      (Central Gateway ECU (Network Gateway ECU))

      Standard Resistance

      Tester Connection Condition Specified Condition
      I231-30 (CA3H) - I231-29 (CA3L) Cable disconnected from negative (-) auxiliary battery terminal Below 70 Ω

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  32

    Result: 

    OK 

    See step  2

  2. CHECK FOR SHORT IN CAN BUS LINES 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1117708Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component with harness connected
      (Central Gateway ECU (Network Gateway ECU))

      Standard Resistance

      Tester Connection Condition Specified Condition
      I231-30 (CA3H) - I231-29 (CA3L) Cable disconnected from negative (-) auxiliary battery terminal 54 Ω or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  23

    Result: 

    OK 

    See step  3

  3. CHECK FOR SHORT TO +B IN CAN BUS LINE 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1111153Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Component with harness connected (Central Gateway ECU (Network Gateway ECU)) - -

      Standard Resistance

      Tester Connection Condition Specified Condition
      I231-30 (CA3H) - I26-16 (BAT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher
      I231-29 (CA3L) - I26-16 (BAT)

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  14

    Result: 

    OK 

    See step  4

  4. CHECK FOR SHORT TO GND IN CAN BUS LINE 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1111154Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Component with harness connected (Central Gateway ECU (Network Gateway ECU)) - -

      Standard Resistance

      Tester Connection Condition Specified Condition
      I231-30 (CA3H) - I26-4 (CG) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      I231-29 (CA3L) - I26-4 (CG)

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU) 

    Refer to REMOVAL [11/2022 - ]

    Result: 

    NG 

    See step  5

  5. CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 15 GLOBAL CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) 
    1. Disconnect the No. 15 global CAN junction connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1177882Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 15 Global CAN Junction Connector)      		 *b to Central Gateway ECU (Network Gateway ECU)

      Standard Resistance

      Tester Connection Condition Specified Condition
      I291-3 (CANH) - I26-4 (CG) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      I291-14 (CANL) - I26-4 (CG)

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  10

    Result: 

    OK 

    See step  6

  6. CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 15 GLOBAL CAN JUNCTION CONNECTOR - RADIO AND DISPLAY RECEIVER ASSEMBLY) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1177875Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 15 Global CAN Junction Connector)      		 *b to Radio and Display Receiver Assembly

      Standard Resistance

      Tester Connection Condition Specified Condition
      I291-1 (CANH) - I26-4 (CG) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      I291-12 (CANL) - I26-4 (CG)

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  11

    Result: 

    OK 

    See step  7

  7. CHECK VEHICLE TYPE 
    1. Check for vehicle type.

      Result

      Result Proceed to
      w/ Telematics Transceiver A
      w/o Telematics Transceiver B

    Result: 

    B 

    See step  9

    Result: 

    A 

    See step  8

  8. CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 15 GLOBAL CAN JUNCTION CONNECTOR - DCM (TELEMATICS TRANSCEIVER)) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1177876Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 15 Global CAN Junction Connector)      		 *b to DCM (Telematics Transceiver)

      Standard Resistance

      Tester Connection Condition Specified Condition
      I291-2 (CANH) - I26-4 (CG) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      I291-13 (CANL) - I26-4 (CG)

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  12

    Result: 

    OK 

    See step  9

  9. CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 15 GLOBAL CAN JUNCTION CONNECTOR - COMBINATION METER ASSEMBLY) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1177817Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 15 Global CAN Junction Connector)      		 *b to Combination Meter Assembly

      Standard Resistance

      Tester Connection Condition Specified Condition
      I291-4 (CANH) - I26-4 (CG) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      I291-15 (CANL) - I26-4 (CG)

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE NO. 15 GLOBAL CAN JUNCTION CONNECTOR 

    Result: 

    NG 

    See step  13

  10. CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 15 GLOBAL CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) 
    1. Disconnect the I231 central gateway ECU (network gateway ECU) connector
    2. Measure the resistance according to the value(s) in the table below.
      GTY1177882Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 15 Global CAN Junction Connector)      		 *b to Central Gateway ECU (Network Gateway ECU)

      Standard Resistance

      Tester Connection Condition Specified Condition
      I291-3 (CANH) - I26-4 (CG) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      I291-14 (CANL) - I26-4 (CG)

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU) 

    Refer to REMOVAL [11/2022 - ]

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (NO. 15 GLOBAL CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) 

  11. CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 15 GLOBAL CAN JUNCTION CONNECTOR - RADIO AND DISPLAY RECEIVER ASSEMBLY) 
    1. Disconnect the I253 radio and display receiver assembly connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1177875Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 15 Global CAN Junction Connector)      		 *b to Radio and Display Receiver Assembly

      Standard Resistance

      Tester Connection Condition Specified Condition
      I291-1 (CANH) - I26-4 (CG) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      I291-12 (CANL) - I26-4 (CG)

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY 

    Refer to REMOVAL [11/2022 - ]

    Result: 

    NG 

    REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (NO. 15 GLOBAL CAN JUNCTION CONNECTOR - RADIO AND DISPLAY RECEIVER ASSEMBLY) 

  12. CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 15 GLOBAL CAN JUNCTION CONNECTOR - DCM (TELEMATICS TRANSCEIVER)) 
    1. Disconnect the I200 DCM (telematics transceiver) connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1177876Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 15 Global CAN Junction Connector)      		 *b to DCM (Telematics Transceiver)

      Standard Resistance

      Tester Connection Condition Specified Condition
      I291-2 (CANH) - I26-4 (CG) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      I291-13 (CANL) - I26-4 (CG)

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE DCM (TELEMATICS TRANSCEIVER) 

    Refer to REMOVAL [09/2021 - ]

    Result: 

    NG 

    REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (NO. 15 GLOBAL CAN JUNCTION CONNECTOR - DCM (TELEMATICS TRANSCEIVER)) 

  13. CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 15 GLOBAL CAN JUNCTION CONNECTOR - COMBINATION METER ASSEMBLY) 
    1. Disconnect the I5 combination meter assembly connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1177817Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 15 Global CAN Junction Connector)      		 *b to Combination Meter Assembly

      Standard Resistance

      Tester Connection Condition Specified Condition
      I291-4 (CANH) - I26-4 (CG) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      I291-15 (CANL) - I26-4 (CG)

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE COMBINATION METER ASSEMBLY 

    Refer to REMOVAL [11/2023 - ]

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (NO. 15 GLOBAL CAN JUNCTION CONNECTOR - COMBINATION METER ASSEMBLY) 

  14. CHECK FOR SHORT TO B+ IN CAN BUS LINE (NO. 15 GLOBAL CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) 
    1. Disconnect the No. 15 global CAN junction connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1177877Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 15 Global CAN Junction Connector)      		 *b to Central Gateway ECU (Network Gateway ECU)

      Standard Resistance

      Tester Connection Condition Specified Condition
      I291-3 (CANH) - I26-16 (BAT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher
      I291-14 (CANL) - I26-16 (BAT)

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  19

    Result: 

    OK 

    See step  15

  15. CHECK FOR SHORT TO B+ IN CAN BUS LINE (NO. 15 GLOBAL CAN JUNCTION CONNECTOR - RADIO AND DISPLAY RECEIVER ASSEMBLY) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1177878Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 15 Global CAN Junction Connector)      		 *b to Radio and Display Receiver Assembly

      Standard Resistance

      Tester Connection Condition Specified Condition
      I291-1 (CANH) - I26-16 (BAT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher
      I291-12 (CANL) - I26-16 (BAT)

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  20

    Result: 

    OK 

    See step  16

  16. CHECK VEHICLE TYPE 
    1. Check for vehicle type.

      Result

      Result Proceed to
      w/ Telematics Transceiver A
      w/o Telematics Transceiver B

    Result: 

    B 

    See step  18

    Result: 

    A 

    See step  17

  17. CHECK FOR SHORT TO B+ IN CAN BUS LINE (NO. 15 GLOBAL CAN JUNCTION CONNECTOR - DCM (TELEMATICS TRANSCEIVER)) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1177879Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 15 Global CAN Junction Connector)      		 *b to DCM (Telematics Transceiver)

      Standard Resistance

      Tester Connection Condition Specified Condition
      I291-2 (CANH) - I26-16 (BAT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher
      I291-13 (CANL) - I26-16 (BAT)

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  21

    Result: 

    OK 

    See step  18

  18. CHECK FOR SHORT TO B+ IN CAN BUS LINE (NO. 15 GLOBAL CAN JUNCTION CONNECTOR - COMBINATION METER ASSEMBLY) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1177880Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 15 Global CAN Junction Connector)      		 *b to Combination Meter Assembly

      Standard Resistance

      Tester Connection Condition Specified Condition
      I291-4 (CANH) - I26-16 (BAT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher
      I291-15 (CANL) - I26-16 (BAT)

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE NO. 15 GLOBAL CAN JUNCTION CONNECTOR 

    Result: 

    NG 

    See step  22

  19. CHECK FOR SHORT TO B+ IN CAN BUS LINE (NO. 15 GLOBAL CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) 
    1. Disconnect the I231 central gateway ECU (network gateway ECU) connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1177877Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 15 Global CAN Junction Connector)      		 *b to Central Gateway ECU (Network Gateway ECU)

      Standard Resistance

      Tester Connection Condition Specified Condition
      I291-3 (CANH) - I26-16 (BAT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher
      I291-14 (CANL) - I26-16 (BAT)

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU) 

    Refer to REMOVAL [11/2022 - ]

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (NO. 15 GLOBAL CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) 

  20. CHECK FOR SHORT TO B+ IN CAN BUS LINE (NO. 15 GLOBAL CAN JUNCTION CONNECTOR - RADIO AND DISPLAY RECEIVER ASSEMBLY) 
    1. Disconnect the I253 radio and display receiver assembly connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1177878Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 15 Global CAN Junction Connector)      		 *b to Radio and Display Receiver Assembly

      Standard Resistance

      Tester Connection Condition Specified Condition
      I291-1 (CANH) - I26-16 (BAT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher
      I291-12 (CANL) - I26-16 (BAT)

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY 

    Refer to REMOVAL [11/2022 - ]

    Result: 

    NG 

    REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (NO. 15 GLOBAL CAN JUNCTION CONNECTOR - RADIO AND DISPLAY RECEIVER ASSEMBLY) 

  21. CHECK FOR SHORT TO B+ IN CAN BUS LINE (NO. 15 GLOBAL CAN JUNCTION CONNECTOR - DCM (TELEMATICS TRANSCEIVER)) 
    1. Disconnect the I200 DCM (telematics transceiver) connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1177879Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 15 Global CAN Junction Connector)      		 *b to DCM (Telematics Transceiver)

      Standard Resistance

      Tester Connection Condition Specified Condition
      I291-2 (CANH) - I26-16 (BAT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher
      I291-13 (CANL) - I26-16 (BAT)

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE DCM (TELEMATICS TRANSCEIVER) 

    Refer to REMOVAL [09/2021 - ]

    Result: 

    NG 

    REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (NO. 15 GLOBAL CAN JUNCTION CONNECTOR - DCM (TELEMATICS TRANSCEIVER)) 

  22. CHECK FOR SHORT TO B+ IN CAN BUS LINE (NO. 15 GLOBAL CAN JUNCTION CONNECTOR - COMBINATION METER ASSEMBLY) 
    1. Disconnect the I5 combination meter assembly connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1177880Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 15 Global CAN Junction Connector)      		 *b to Combination Meter Assembly

      Standard Resistance

      Tester Connection Condition Specified Condition
      I291-4 (CANH) - I26-16 (BAT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher
      I291-15 (CANL) - I26-16 (BAT)

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE COMBINATION METER ASSEMBLY 

    Refer to REMOVAL [11/2023 - ]

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (NO. 15 GLOBAL CAN JUNCTION CONNECTOR - COMBINATION METER ASSEMBLY) 

  23. CHECK FOR SHORT IN CAN BUS LINES (NO. 15 GLOBAL CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) 
    1. Disconnect the No. 15 global CAN junction connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1177968Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to No. 15 Global CAN Junction Connector)      		 *b to Central Gateway ECU (Network Gateway ECU)

      Standard Resistance

      Tester Connection Condition Specified Condition
      I291-3 (CANH) - I291-14 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 108 to 132 Ω

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  28

    Result: 

    OK 

    See step  24

  24. CHECK FOR SHORT IN CAN BUS LINES (NO. 15 GLOBAL CAN JUNCTION CONNECTOR - RADIO AND DISPLAY RECEIVER ASSEMBLY) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1177969Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to No. 15 Global CAN Junction Connector)      		 *b to Radio and Display Receiver Assembly

      Standard Resistance

      Tester Connection Condition Specified Condition
      I291-1 (CANH) - I291-12 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  29

    Result: 

    OK 

    See step  25

  25. CHECK VEHICLE TYPE 
    1. Check for vehicle type.

      Result

      Result Proceed to
      w/ Telematics Transceiver A
      w/o Telematics Transceiver B

    Result: 

    B 

    See step  27

    Result: 

    A 

    See step  26

  26. CHECK FOR SHORT IN CAN BUS LINES (NO. 15 GLOBAL CAN JUNCTION CONNECTOR - DCM (TELEMATICS TRANSCEIVER)) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1177966Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to No. 15 Global CAN Junction Connector)      		 *b to DCM (Telematics Transceiver)

      Standard Resistance

      Tester Connection Condition Specified Condition
      I291-2 (CANH) - I291-13 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  30

    Result: 

    OK 

    See step  27

  27. CHECK FOR SHORT IN CAN BUS LINES (NO. 15 GLOBAL CAN JUNCTION CONNECTOR - COMBINATION METER ASSEMBLY) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1177967Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to No. 15 Global CAN Junction Connector)      		 *b to Combination Meter Assembly

      Standard Resistance

      Tester Connection Condition Specified Condition
      I291-4 (CANH) - I291-15 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 108 to 132 Ω

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE NO. 15 GLOBAL CAN JUNCTION CONNECTOR 

    Result: 

    NG 

    See step  31

  28. CHECK FOR SHORT IN CAN BUS LINES (NO. 15 GLOBAL CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) 
    1. Disconnect the I231 central gateway ECU (network gateway ECU) connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1177968Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to No. 15 Global CAN Junction Connector)      		 *b to Central Gateway ECU (Network Gateway ECU)

      Standard Resistance

      Tester Connection Condition Specified Condition
      I291-3 (CANH) - I291-14 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 1 MΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU) 

    Refer to REMOVAL [11/2022 - ]

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN BUS LINES OR CONNECTOR (NO. 15 GLOBAL CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) 

  29. CHECK FOR SHORT IN CAN BUS LINES (NO. 15 GLOBAL CAN JUNCTION CONNECTOR - RADIO AND DISPLAY RECEIVER ASSEMBLY) 
    1. Disconnect the I253 radio and display receiver assembly connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1177969Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to No. 15 Global CAN Junction Connector)      		 *b to Radio and Display Receiver Assembly

      Standard Resistance

      Tester Connection Condition Specified Condition
      I291-1 (CANH) - I291-12 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 1 MΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY 

    Refer to REMOVAL [11/2022 - ]

    Result: 

    NG 

    REPAIR OR REPLACE CAN BRANCH LINES OR CONNECTOR (NO. 15 GLOBAL CAN JUNCTION CONNECTOR - RADIO AND DISPLAY RECEIVER ASSEMBLY) 

  30. CHECK FOR SHORT IN CAN BUS LINES (NO. 15 GLOBAL CAN JUNCTION CONNECTOR - DCM (TELEMATICS TRANSCEIVER)) 
    1. Disconnect the I200 DCM (telematics transceiver) connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1177966Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to No. 15 Global CAN Junction Connector)      		 *b to DCM (Telematics Transceiver)

      Standard Resistance

      Tester Connection Condition Specified Condition
      I291-2 (CANH) - I291-13 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 1 MΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE DCM (TELEMATICS TRANSCEIVER) 

    Refer to REMOVAL [09/2021 - ]

    Result: 

    NG 

    REPAIR OR REPLACE CAN BRANCH LINES OR CONNECTOR (NO. 15 GLOBAL CAN JUNCTION CONNECTOR - DCM (TELEMATICS TRANSCEIVER)) 

  31. CHECK FOR SHORT IN CAN BUS LINES (NO. 15 GLOBAL CAN JUNCTION CONNECTOR - COMBINATION METER ASSEMBLY) 
    1. Disconnect the I5 combination meter assembly connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1177967Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to No. 15 Global CAN Junction Connector)      		 *b to Combination Meter Assembly

      Standard Resistance

      Tester Connection Condition Specified Condition
      I291-4 (CANH) - I291-15 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 1 MΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE COMBINATION METER ASSEMBLY 

    Refer to REMOVAL [11/2023 - ]

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN BUS LINES OR CONNECTOR (NO. 15 GLOBAL CAN JUNCTION CONNECTOR - COMBINATION METER ASSEMBLY) 

  32. CHECK FOR OPEN IN CAN BUS LINES (CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) 
    1. Disconnect the central gateway ECU (network gateway ECU) connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      I231-30 (CA3H) - I231-29 (CA3L) Cable disconnected from negative (-) auxiliary battery terminal 108 to 132 Ω
      GTY1115360Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to Central Gateway ECU (Network Gateway ECU))

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU) 

    Refer to REMOVAL [11/2022 - ]

    Result: 

    NG 

    See step  33

  33. CHECK FOR OPEN IN CAN BUS LINES (NO. 15 GLOBAL CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) 
    1. Reconnect the I231 central gateway ECU (network gateway ECU) connector.
    2. Disconnect the No. 15 global CAN junction connector.
    3. Measure the resistance according to the value(s) in the table below.
      GTY1177968Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to No. 15 Global CAN Junction Connector)      		 *b to Central Gateway ECU (Network Gateway ECU)

      Standard Resistance

      Tester Connection Condition Specified Condition
      I291-3 (CANH) - I291-14 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 108 to 132 Ω

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN BUS LINES OR CONNECTOR (NO. 15 GLOBAL CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) 

    Result: 

    OK 

    See step  34

  34. CHECK FOR OPEN IN CAN BUS LINES (NO. 15 GLOBAL CAN JUNCTION CONNECTOR - COMBINATION METER ASSEMBLY) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1177967Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to No. 15 Global CAN Junction Connector)      		 *b to Combination Meter Assembly

      Standard Resistance

      Tester Connection Condition Specified Condition
      I291-4 (CANH) - I291-15 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 108 to 132 Ω

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE NO. 15 GLOBAL CAN JUNCTION CONNECTOR 

    Result: 

    NG 

    See step  35

  35. CHECK FOR OPEN IN CAN BUS LINES (COMBINATION METER ASSEMBLY) 
    1. Reconnect the I291 No. 15 global CAN junction connector.
    2. Disconnect the combination meter assembly connector.
    3. Measure the resistance according to the value(s) in the table below.
      GTY1112889Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to Combination Meter Assembly)

      Standard Resistance

      Tester Connection Condition Specified Condition
      I5-31 (CANH) - I5-14 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 108 to 132 Ω

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE COMBINATION METER ASSEMBLY 

    Refer to REMOVAL [11/2023 - ]

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN BUS LINES OR CONNECTOR (COMBINATION METER ASSEMBLY - NO. 15 GLOBAL CAN JUNCTION CONNECTOR) 

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