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Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 66 (Can Communication System (HV) - Circuit Tests (6 Of 9)) >> CAN COMMUNICATION SYSTEM (for HV Model) >> Check Bus 3 Line [11/2023 - ] >> Procedure

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

WARNING: This page is about a different variant/trim than selected.
  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.
      GTY1179190Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component with harness connected
      (Central Gateway ECU (Network Gateway ECU))

      Standard Resistance

      Tester Connection Condition Specified Condition
      H143-30 (CA3H) - H143-29 (CA3L) Cable disconnected from negative (-) auxiliary battery terminal Below 70 Ω

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  50

    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.
      GTY1179190Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component with harness connected
      (Central Gateway ECU (Network Gateway ECU))

      Standard Resistance

      Tester Connection Condition Specified Condition
      H143-30 (CA3H) - H143-29 (CA3L) Cable disconnected from negative (-) auxiliary battery terminal 54 Ω or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  35

    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.
      GTY1178779Courtesy 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
      H143-30 (CA3H) - H56-16 (BAT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher
      H143-29 (CA3L) - H56-16 (BAT)

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  20

    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.
      GTY1118945Courtesy 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
      H143-30 (CA3H) - H56-4 (CG) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      H143-29 (CA3L) - H56-4 (CG)

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU) 

    Refer to REMOVAL [11/2023 - ]

    Result: 

    NG 

    See step  5

  5. CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 7 GLOBAL CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) 
    1. Disconnect the H99 No. 7 global CAN junction connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1180119Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 7 Global CAN Junction Connector)      		 *b to Central Gateway ECU (Network Gateway ECU)

      Standard Resistance

      Tester Connection Condition Specified Condition
      H99-2 (CANH) - H56-4 (CG) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      H99-13 (CANL) - H56-4 (CG)

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  14

    Result: 

    OK 

    See step  6

  6. CHECK VEHICLE TYPE 
    1. Check vehicle type.

      Result

      Result Proceed to
      w/ Digital Inner Mirror System A
      w/o Digital Inner Mirror System B

    Result: 

    B 

    See step  8

    Result: 

    A 

    See step  7

  7. CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 7 GLOBAL CAN JUNCTION CONNECTOR - INNER REAR VIEW MIRROR ASSEMBLY) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1180120Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 7 Global CAN Junction Connector)      		 *b to Inner Rear View Mirror Assembly

      Standard Resistance

      Tester Connection Condition Specified Condition
      H99-6 (CANH) - H56-4 (CG) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      H99-17 (CANL) - H56-4 (CG)

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  15

    Result: 

    OK 

    See step  8

  8. CHECK VEHICLE TYPE 
    1. Check vehicle type.

      Result

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

    Result: 

    B 

    See step  10

    Result: 

    A 

    See step  9

  9. CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 7 GLOBAL CAN JUNCTION CONNECTOR - DCM (TELEMATICS TRANSCEIVER)) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1180121Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 7 Global CAN Junction Connector)      		 *b to DCM (Telematics Transceiver)

      Standard Resistance

      Tester Connection Condition Specified Condition
      H99-5 (CANH) - H56-4 (CG) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      H99-16 (CANL) - H56-4 (CG)

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  16

    Result: 

    OK 

    See step  10

  10. CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 7 GLOBAL CAN JUNCTION CONNECTOR - RADIO AND DISPLAY RECEIVER ASSEMBLY) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1179143Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 7 Global CAN Junction Connector)      		 *b to Radio and Display Receiver Assembly

      Standard Resistance

      Tester Connection Condition Specified Condition
      H99-4 (CANH) - H56-4 (CG) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      H99-15 (CANL) - H56-4 (CG)

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  17

    Result: 

    OK 

    See step  11

  11. CHECK VEHICLE TYPE 
    1. Check vehicle type.

      Result

      Result Proceed to
      w/ Headup Display System A
      w/o Headup Display System B

    Result: 

    B 

    See step  13

    Result: 

    A 

    See step  12

  12. CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 7 GLOBAL CAN JUNCTION CONNECTOR - METER MIRROR SUB-ASSEMBLY) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1180122Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 7 Global CAN Junction Connector)      		 *b to Meter Mirror Sub-assembly

      Standard Resistance

      Tester Connection Condition Specified Condition
      H99-1 (CANH) - H56-4 (CG) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      H99-12 (CANL) - H56-4 (CG)

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  18

    Result: 

    OK 

    See step  13

  13. CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 7 GLOBAL CAN JUNCTION CONNECTOR - COMBINATION METER ASSEMBLY) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1180123Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 7 Global CAN Junction Connector)      		 *b to Combination Meter Assembly

      Standard Resistance

      Tester Connection Condition Specified Condition
      H99-3 (CANH) - H56-4 (CG) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      H99-14 (CANL) - H56-4 (CG)

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE NO. 7 GLOBAL CAN JUNCTION CONNECTOR 

    Result: 

    NG 

    See step  19

  14. CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 7 GLOBAL CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) 
    1. Disconnect the H143 central gateway ECU (network gateway ECU) connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1180119Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 7 Global CAN Junction Connector)      		 *b to Central Gateway ECU (Network Gateway ECU)

      Standard Resistance

      Tester Connection Condition Specified Condition
      H99-2 (CANH) - H56-4 (CG) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      H99-13 (CANL) - H56-4 (CG)

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU) 

    Refer to REMOVAL [11/2023 - ]

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (NO. 7 GLOBAL CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) 

  15. CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 7 GLOBAL CAN JUNCTION CONNECTOR - INNER REAR VIEW MIRROR ASSEMBLY) 
    1. Disconnect the R1 inner rear view mirror assembly connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1180120Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 7 Global CAN Junction Connector)      		 *b to Inner Rear View Mirror Assembly

      Standard Resistance

      Tester Connection Condition Specified Condition
      H99-6 (CANH) - H56-4 (CG) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      H99-17 (CANL) - H56-4 (CG)

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE INNER REAR VIEW MIRROR ASSEMBLY 

    Refer to REMOVAL [11/2023 - ]

    Result: 

    NG 

    REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (NO. 7 GLOBAL CAN JUNCTION CONNECTOR - INNER REAR VIEW MIRROR ASSEMBLY) 

  16. CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 7 GLOBAL CAN JUNCTION CONNECTOR - DCM (TELEMATICS TRANSCEIVER)) 
    1. Disconnect the H11 DCM (telematics transceiver) connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1180121Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 7 Global CAN Junction Connector)      		 *b to DCM (Telematics Transceiver)

      Standard Resistance

      Tester Connection Condition Specified Condition
      H99-5 (CANH) - H56-4 (CG) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      H99-16 (CANL) - H56-4 (CG)

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE DCM (TELEMATICS TRANSCEIVER) 

    Refer to REMOVAL [11/2023 - ]

    Result: 

    NG 

    REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (NO. 7 GLOBAL CAN JUNCTION CONNECTOR - DCM (TELEMATICS TRANSCEIVER)) 

  17. CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 7 GLOBAL CAN JUNCTION CONNECTOR - RADIO AND DISPLAY RECEIVER ASSEMBLY) 
    1. Disconnect the H108 radio and display receiver assembly connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1179143Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 7 Global CAN Junction Connector)      		 *b to Radio and Display Receiver Assembly

      Standard Resistance

      Tester Connection Condition Specified Condition
      H99-4 (CANH) - H56-4 (CG) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      H99-15 (CANL) - H56-4 (CG)

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY 

    Refer to REMOVAL [11/2023 - ]

    Result: 

    NG 

    REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (NO. 7 GLOBAL CAN JUNCTION CONNECTOR - RADIO AND DISPLAY RECEIVER ASSEMBLY) 

  18. CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 7 GLOBAL CAN JUNCTION CONNECTOR - METER MIRROR SUB-ASSEMBLY) 
    1. Disconnect the H31 meter mirror sub-assembly connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1180122Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 7 Global CAN Junction Connector)      		 *b to Meter Mirror Sub-assembly

      Standard Resistance

      Tester Connection Condition Specified Condition
      H99-1 (CANH) - H56-4 (CG) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      H99-12 (CANL) - H56-4 (CG)

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE METER MIRROR SUB-ASSEMBLY 

    Refer to REMOVAL [11/2023 - ]

    Result: 

    NG 

    REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (NO. 7 GLOBAL CAN JUNCTION CONNECTOR - METER MIRROR SUB-ASSEMBLY) 

  19. CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 7 GLOBAL CAN JUNCTION CONNECTOR - COMBINATION METER ASSEMBLY) 
    1. Disconnect the H21 or H113 combination meter assembly connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1180123Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 7 Global CAN Junction Connector)      		 *b to Combination Meter Assembly

      Standard Resistance

      Tester Connection Condition Specified Condition
      H99-3 (CANH) - H56-4 (CG) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      H99-14 (CANL) - H56-4 (CG)

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE COMBINATION METER ASSEMBLY 

    Refer to REMOVAL [12/2019 - ]

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (NO. 7 GLOBAL CAN JUNCTION CONNECTOR - COMBINATION METER ASSEMBLY) 

  20. CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 7 GLOBAL CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) 
    1. Disconnect the H99 No. 7 global CAN junction connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1180125Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 7 Global CAN Junction Connector)      		 *b to Central Gateway ECU (Network Gateway ECU)

      Standard Resistance

      Tester Connection Condition Specified Condition
      H99-2 (CANH) - H56-16 (BAT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher
      H99-13 (CANL) - H56-16 (BAT)

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  29

    Result: 

    OK 

    See step  21

  21. CHECK VEHICLE TYPE 
    1. Check vehicle type.

      Result

      Result Proceed to
      w/ Digital Inner Mirror System A
      w/o Digital Inner Mirror System B

    Result: 

    B 

    See step  23

    Result: 

    A 

    See step  22

  22. CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 7 GLOBAL CAN JUNCTION CONNECTOR - INNER REAR VIEW MIRROR ASSEMBLY) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1180126Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 7 Global CAN Junction Connector)      		 *b to Inner Rear View Mirror Assembly

      Standard Resistance

      Tester Connection Condition Specified Condition
      H99-6 (CANH) - H56-16 (BAT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher
      H99-17 (CANL) - H56-16 (BAT)

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  30

    Result: 

    OK 

    See step  23

  23. CHECK VEHICLE TYPE 
    1. Check vehicle type.

      Result

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

    Result: 

    B 

    See step  25

    Result: 

    A 

    See step  24

  24. CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 7 GLOBAL CAN JUNCTION CONNECTOR - DCM (TELEMATICS TRANSCEIVER)) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1180133Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 7 Global CAN Junction Connector)      		 *b to DCM (Telematics Transceiver)

      Standard Resistance

      Tester Connection Condition Specified Condition
      H99-5 (CANH) - H56-16 (BAT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher
      H99-16 (CANL) - H56-16 (BAT)

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  31

    Result: 

    OK 

    See step  25

  25. CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 7 GLOBAL CAN JUNCTION CONNECTOR - RADIO AND DISPLAY RECEIVER ASSEMBLY) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1180134Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 7 Global CAN Junction Connector)      		 *b to Radio and Display Receiver Assembly

      Standard Resistance

      Tester Connection Condition Specified Condition
      H99-4 (CANH) - H56-16 (BAT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher
      H99-15 (CANL) - H56-16 (BAT)

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  32

    Result: 

    OK 

    See step  26

  26. CHECK VEHICLE TYPE 
    1. Check vehicle type.

      Result

      Result Proceed to
      w/ Headup Display System A
      w/o Headup Display System B

    Result: 

    B 

    See step  28

    Result: 

    A 

    See step  27

  27. CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 7 GLOBAL CAN JUNCTION CONNECTOR - METER MIRROR SUB-ASSEMBLY) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1180135Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 7 Global CAN Junction Connector)      		 *b to Meter Mirror Sub-assembly

      Standard Resistance

      Tester Connection Condition Specified Condition
      H99-1 (CANH) - H56-16 (BAT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher
      H99-12 (CANL) - H56-16 (BAT)

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  33

    Result: 

    OK 

    See step  28

  28. CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 7 GLOBAL CAN JUNCTION CONNECTOR - COMBINATION METER ASSEMBLY) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1180136Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 7 Global CAN Junction Connector)      		 *b to Combination Meter Assembly

      Standard Resistance

      Tester Connection Condition Specified Condition
      H99-3 (CANH) - H56-16 (BAT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher
      H99-14 (CANL) - H56-16 (BAT)

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE NO. 7 GLOBAL CAN JUNCTION CONNECTOR 

    Result: 

    NG 

    See step  34

  29. CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 7 GLOBAL CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) 
    1. Disconnect the H143 central gateway ECU (network gateway ECU) connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1180125Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 7 Global CAN Junction Connector)      		 *b to Central Gateway ECU (Network Gateway ECU)

      Standard Resistance

      Tester Connection Condition Specified Condition
      H99-2 (CANH) - H56-16 (BAT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher
      H99-13 (CANL) - H56-16 (BAT)

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU) 

    Refer to REMOVAL [11/2023 - ]

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (NO. 7 GLOBAL CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) 

  30. CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 7 GLOBAL CAN JUNCTION CONNECTOR - INNER REAR VIEW MIRROR ASSEMBLY) 
    1. Disconnect the R1 inner rear view mirror assembly connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1180126Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 7 Global CAN Junction Connector)      		 *b to Inner Rear View Mirror Assembly

      Standard Resistance

      Tester Connection Condition Specified Condition
      H99-6 (CANH) - H56-16 (BAT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher
      H99-17 (CANL) - H56-16 (BAT)

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE INNER REAR VIEW MIRROR ASSEMBLY 

    Refer to REMOVAL [11/2023 - ]

    Result: 

    NG 

    REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (NO. 7 GLOBAL CAN JUNCTION CONNECTOR - INNER REAR VIEW MIRROR ASSEMBLY) 

  31. CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 7 GLOBAL CAN JUNCTION CONNECTOR - DCM (TELEMATICS TRANSCEIVER)) 
    1. Disconnect the H11 DCM (telematics transceiver) connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1180133Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 7 Global CAN Junction Connector)      		 *b to DCM (Telematics Transceiver)

      Standard Resistance

      Tester Connection Condition Specified Condition
      H99-5 (CANH) - H56-16 (BAT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher
      H99-16 (CANL) - H56-16 (BAT)

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE DCM (TELEMATICS TRANSCEIVER) 

    Refer to REMOVAL [11/2023 - ]

    Result: 

    NG 

    REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (NO. 7 GLOBAL CAN JUNCTION CONNECTOR - DCM (TELEMATICS TRANSCEIVER)) 

  32. CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 7 GLOBAL CAN JUNCTION CONNECTOR - RADIO AND DISPLAY RECEIVER ASSEMBLY) 
    1. Disconnect the H108 radio and display receiver assembly connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1180134Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 7 Global CAN Junction Connector)      		 *b to Radio and Display Receiver Assembly

      Standard Resistance

      Tester Connection Condition Specified Condition
      H99-4 (CANH) - H56-16 (BAT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher
      H99-15 (CANL) - H56-16 (BAT)

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY 

    Refer to REMOVAL [11/2023 - ]

    Result: 

    NG 

    REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (NO. 7 GLOBAL CAN JUNCTION CONNECTOR - RADIO AND DISPLAY RECEIVER ASSEMBLY) 

  33. CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 7 GLOBAL CAN JUNCTION CONNECTOR - METER MIRROR SUB-ASSEMBLY) 
    1. Disconnect the H31 meter mirror sub-assembly connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1180135Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 7 Global CAN Junction Connector)      		 *b to Meter Mirror Sub-assembly

      Standard Resistance

      Tester Connection Condition Specified Condition
      H99-1 (CANH) - H56-16 (BAT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher
      H99-12 (CANL) - H56-16 (BAT)

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE METER MIRROR SUB-ASSEMBLY 

    Refer to REMOVAL [11/2023 - ]

    Result: 

    NG 

    REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (NO. 7 GLOBAL CAN JUNCTION CONNECTOR - METER MIRROR SUB-ASSEMBLY) 

  34. CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 7 GLOBAL CAN JUNCTION CONNECTOR - COMBINATION METER ASSEMBLY) 
    1. Disconnect the H21 or H113 combination meter assembly connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1180136Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 7 Global CAN Junction Connector)      		 *b to Combination Meter Assembly

      Standard Resistance

      Tester Connection Condition Specified Condition
      H99-3 (CANH) - H56-16 (BAT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher
      H99-14 (CANL) - H56-16 (BAT)

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE COMBINATION METER ASSEMBLY 

    Refer to REMOVAL [12/2019 - ]

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (NO. 7 GLOBAL CAN JUNCTION CONNECTOR - COMBINATION METER ASSEMBLY) 

  35. CHECK FOR SHORT IN CAN BUS LINES (NO. 7 GLOBAL CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) 
    1. Disconnect the H99 No. 7 global CAN junction connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1179579Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to No. 7 Global CAN Junction Connector)      		 *b to Central Gateway ECU (Network Gateway ECU)

      Standard Resistance

      Tester Connection Condition Specified Condition
      H99-2 (CANH) - H99-13 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 108 to 132 Ω

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  44

    Result: 

    OK 

    See step  36

  36. CHECK VEHICLE TYPE 
    1. Check vehicle type.

      Result

      Result Proceed to
      w/ Digital Inner Mirror System A
      w/o Digital Inner Mirror System B

    Result: 

    B 

    See step  38

    Result: 

    A 

    See step  37

  37. CHECK FOR SHORT IN CAN BUS LINES (NO. 7 GLOBAL CAN JUNCTION CONNECTOR - INNER REAR VIEW MIRROR ASSEMBLY) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1179580Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to No. 7 Global CAN Junction Connector)      		 *b to Inner Rear View Mirror Assembly

      Standard Resistance

      Tester Connection Condition Specified Condition
      H99-6 (CANH) - H99-17 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  45

    Result: 

    OK 

    See step  38

  38. CHECK VEHICLE TYPE 
    1. Check vehicle type.

      Result

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

    Result: 

    B 

    See step  40

    Result: 

    A 

    See step  39

  39. CHECK FOR SHORT IN CAN BUS LINES (NO. 7 GLOBAL CAN JUNCTION CONNECTOR - DCM (TELEMATICS TRANSCEIVER)) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1179578Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to No. 7 Global CAN Junction Connector)      		 *b to DCM (Telematics Transceiver)

      Standard Resistance

      Tester Connection Condition Specified Condition
      H99-5 (CANH) - H99-16 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  46

    Result: 

    OK 

    See step  40

  40. CHECK FOR SHORT IN CAN BUS LINES (NO. 7 GLOBAL CAN JUNCTION CONNECTOR - RADIO AND DISPLAY RECEIVER ASSEMBLY) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1179570Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to No. 7 Global CAN Junction Connector)      		 *b to Radio and Display Receiver Assembly

      Standard Resistance

      Tester Connection Condition Specified Condition
      H99-4 (CANH) - H99-15 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  47

    Result: 

    OK 

    See step  41

  41. CHECK VEHICLE TYPE 
    1. Check vehicle type.

      Result

      Result Proceed to
      w/ Headup Display System A
      w/o Headup Display System B

    Result: 

    B 

    See step  43

    Result: 

    A 

    See step  42

  42. CHECK FOR SHORT IN CAN BUS LINES (NO. 7 GLOBAL CAN JUNCTION CONNECTOR - METER MIRROR SUB-ASSEMBLY) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1179572Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to No. 7 Global CAN Junction Connector)      		 *b to Meter Mirror Sub-assembly

      Standard Resistance

      Tester Connection Condition Specified Condition
      H99-1 (CANH) - H99-12 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  48

    Result: 

    OK 

    See step  43

  43. CHECK FOR SHORT IN CAN BUS LINES (NO. 7 GLOBAL CAN JUNCTION CONNECTOR - COMBINATION METER ASSEMBLY) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1179425Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to No. 7 Global CAN Junction Connector)      		 *b to Combination Meter Assembly

      Standard Resistance

      Tester Connection Condition Specified Condition
      H99-3 (CANH) - H99-14 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 108 to 132 Ω

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE NO. 7 GLOBAL CAN JUNCTION CONNECTOR 

    Result: 

    NG 

    See step  49

  44. CHECK FOR SHORT IN CAN BUS LINES (NO. 7 GLOBAL CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) 
    1. Disconnect the H143 central gateway ECU (network gateway ECU) connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1179579Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to No. 7 Global CAN Junction Connector)      		 *b to Central Gateway ECU (Network Gateway ECU)

      Standard Resistance

      Tester Connection Condition Specified Condition
      H99-2 (CANH) - H99-13 (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 [11/2023 - ]

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN BUS LINES OR CONNECTOR (NO. 7 GLOBAL CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) 

  45. CHECK FOR SHORT IN CAN BUS LINES (NO. 7 GLOBAL CAN JUNCTION CONNECTOR - INNER REAR VIEW MIRROR ASSEMBLY) 
    1. Disconnect the R1 inner rear view mirror assembly connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1179580Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to No. 7 Global CAN Junction Connector)      		 *b to Inner Rear View Mirror Assembly

      Standard Resistance

      Tester Connection Condition Specified Condition
      H99-6 (CANH) - H99-17 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 1 MΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE INNER REAR VIEW MIRROR ASSEMBLY 

    Refer to REMOVAL [11/2023 - ]

    Result: 

    NG 

    REPAIR OR REPLACE CAN BRANCH LINES OR CONNECTOR (NO. 7 GLOBAL CAN JUNCTION CONNECTOR - INNER REAR VIEW MIRROR ASSEMBLY) 

  46. CHECK FOR SHORT IN CAN BUS LINES (NO. 7 GLOBAL CAN JUNCTION CONNECTOR - DCM (TELEMATICS TRANSCEIVER)) 
    1. Disconnect the H11 DCM (telematics transceiver) connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1179578Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to No. 7 Global CAN Junction Connector)      		 *b to DCM (Telematics Transceiver)

      Standard Resistance

      Tester Connection Condition Specified Condition
      H99-5 (CANH) - H99-16 (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 [11/2023 - ]

    Result: 

    NG 

    REPAIR OR REPLACE CAN BRANCH LINES OR CONNECTOR (NO. 7 GLOBAL CAN JUNCTION CONNECTOR - DCM (TELEMATICS TRANSCEIVER)) 

  47. CHECK FOR SHORT IN CAN BUS LINES (NO. 7 GLOBAL CAN JUNCTION CONNECTOR - RADIO AND DISPLAY RECEIVER ASSEMBLY) 
    1. Disconnect the H108 radio and display receiver assembly connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1179570Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to No. 7 Global CAN Junction Connector)      		 *b to Radio and Display Receiver Assembly

      Standard Resistance

      Tester Connection Condition Specified Condition
      H99-4 (CANH) - H99-15 (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 [11/2023 - ]

    Result: 

    NG 

    REPAIR OR REPLACE CAN BRANCH LINES OR CONNECTOR (NO. 7 GLOBAL CAN JUNCTION CONNECTOR - RADIO AND DISPLAY RECEIVER ASSEMBLY) 

  48. CHECK FOR SHORT IN CAN BUS LINES (NO. 7 GLOBAL CAN JUNCTION CONNECTOR - METER MIRROR SUB-ASSEMBLY) 
    1. Disconnect the H31 meter mirror sub-assembly connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1179572Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to No. 7 Global CAN Junction Connector)      		 *b to Meter Mirror Sub-assembly

      Standard Resistance

      Tester Connection Condition Specified Condition
      H99-1 (CANH) - H99-12 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 1 MΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE METER MIRROR SUB-ASSEMBLY 

    Refer to REMOVAL [11/2023 - ]

    Result: 

    NG 

    REPAIR OR REPLACE CAN BRANCH LINES OR CONNECTOR (NO. 7 GLOBAL CAN JUNCTION CONNECTOR - METER MIRROR SUB-ASSEMBLY) 

  49. CHECK FOR SHORT IN CAN BUS LINES (NO. 7 GLOBAL CAN JUNCTION CONNECTOR - COMBINATION METER ASSEMBLY) 
    1. Disconnect the H21 or H113 combination meter assembly connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1179425Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to No. 7 Global CAN Junction Connector)      		 *b to Combination Meter Assembly

      Standard Resistance

      Tester Connection Condition Specified Condition
      H99-3 (CANH) - H99-14 (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 [12/2019 - ]

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN BUS LINES OR CONNECTOR (NO. 7 GLOBAL CAN JUNCTION CONNECTOR - COMBINATION METER ASSEMBLY) 

  50. CHECK FOR OPEN IN CAN MAIN BUS LINES (CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) 
    1. Disconnect the H143 central gateway ECU (network gateway ECU) connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1179912Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to Central Gateway ECU (Network Gateway ECU))

      Standard Resistance

      Tester Connection Condition Specified Condition
      H143-30 (CA3H) - H143-29 (CA3L) Cable disconnected from negative (-) auxiliary battery terminal 108 to 132 Ω

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU) 

    Refer to REMOVAL [11/2023 - ]

    Result: 

    NG 

    See step  51

  51. CHECK FOR OPEN IN CAN MAIN BUS LINES (NO. 7 GLOBAL CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) 
    1. Reconnect the H143 central gateway ECU (network gateway ECU) connector.
    2. Disconnect the H99 No. 7 global CAN junction connector.
    3. Measure the resistance according to the value(s) in the table below.
      GTY1179579Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to No. 7 Global CAN Junction Connector)      		 *b to Central Gateway ECU (Network Gateway ECU)

      Standard Resistance

      Tester Connection Condition Specified Condition
      H99-2 (CANH) - H99-13 (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. 7 GLOBAL CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) 

    Result: 

    OK 

    See step  52

  52. CHECK FOR OPEN IN CAN MAIN BUS LINES (NO. 7 GLOBAL CAN JUNCTION CONNECTOR - COMBINATION METER ASSEMBLY) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1179425Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to No. 7 Global CAN Junction Connector)      		 *b to Combination Meter Assembly

      Standard Resistance

      Tester Connection Condition Specified Condition
      H99-3 (CANH) - H99-14 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 108 to 132 Ω

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE NO. 7 GLOBAL CAN JUNCTION CONNECTOR 

    Result: 

    NG 

    See step  53

  53. CHECK VEHICLE TYPE 
    1. Check vehicle type.

      Result

      Result Proceed to
      except 12.3 Inch Display A
      for 12.3 Inch Display B

    Result: 

    B 

    See step  55

    Result: 

    A 

    See step  54

  54. CHECK FOR OPEN IN CAN MAIN BUS LINES (COMBINATION METER ASSEMBLY) 
    1. Reconnect the H99 No. 7 global CAN junction connector.
    2. Disconnect the H21 combination meter assembly connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      H21-32 (CANH) - H21-31 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 108 to 132 Ω
      GTY879550Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to Combination Meter Assembly)

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE COMBINATION METER ASSEMBLY 

    Refer to REMOVAL [12/2019 - ]

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN BUS LINES OR CONNECTOR (COMBINATION METER ASSEMBLY - NO. 7 GLOBAL CAN JUNCTION CONNECTOR) 

  55. CHECK FOR OPEN IN CAN MAIN BUS LINES (COMBINATION METER ASSEMBLY) 
    1. Reconnect the H99 No. 7 global CAN junction connector.
    2. Disconnect the H113 combination meter assembly connector.
    3. Measure the resistance according to the value(s) in the table below.
      GTY1110543Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to Combination Meter Assembly)

      Standard Resistance

      Tester Connection Condition Specified Condition
      H113-31 (CANH) - H113-14 (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 [12/2019 - ]

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN BUS LINES OR CONNECTOR (COMBINATION METER ASSEMBLY - NO. 7 GLOBAL CAN JUNCTION CONNECTOR) 

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