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Check Bus 2 Line [11/2022 - ]: 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.
      GTY1119341Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component with harness connected
      (Central Gateway ECU (Network Gateway ECU))

      Standard Resistance

      Tester Connection Condition Specified Condition
      I231-26 (CA4H) - I231-25 (CA4L) Cable disconnected from negative (-) auxiliary battery terminal Below 70 Ω

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  35

    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.
      GTY1119341Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component with harness connected
      (Central Gateway ECU (Network Gateway ECU))

      Standard Resistance

      Tester Connection Condition Specified Condition
      I231-26 (CA4H) - I231-25 (CA4L) Cable disconnected from negative (-) auxiliary battery terminal 54 Ω or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  25

    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.
      GTY1115646Courtesy 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
      I231-26 (CA4H) - I26-16 (BAT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher
      I231-25 (CA4L) - I26-16 (BAT)

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  15

    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.
      GTY1115659Courtesy 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
      I231-26 (CA4H) - I26-4 (CG) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      I231-25 (CA4L) - 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 (BATTERY ECU ASSEMBLY - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) 
    WARNING:

    Be sure to wear insulated gloves.

    1. Check that the service plug grip is not installed.
      NOTE:

      After removing the service plug grip, do not turn the ignition switch to ON (READY), unless instructed by the appropriate service information because this may cause a malfunction.

    2. Disconnect the battery ECU assembly connector.
    3. Measure the resistance according to the value(s) in the table below.
      GTY1117501Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to Battery ECU Assembly)      		 *b to Central Gateway ECU (Network Gateway ECU)

      Standard Resistance

      Tester Connection Condition Specified Condition
      O211-9 (CA2H) - I26-4 (CG) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      O211-8 (CA2L) - I26-4 (CG)

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  7

    Result: 

    OK 

    See step  6

  6. CHECK FOR SHORT TO GND IN CAN BUS LINE (BATTERY ECU ASSEMBLY - NO. 13 GLOBAL CAN JUNCTION CONNECTOR) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1117503Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to Battery ECU Assembly)      		 *b to No. 13 Global CAN Junction Connector

      Standard Resistance

      Tester Connection Condition Specified Condition
      O211-20 (C2HB) - I26-4 (CG) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      O211-19 (C2LB) - I26-4 (CG)

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE BATTERY ECU ASSEMBLY 

    Refer to REMOVAL [11/2022 - ]

    Result: 

    NG 

    See step  8

  7. CHECK FOR SHORT TO GND IN CAN BUS LINE (BATTERY ECU ASSEMBLY - 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.
      GTY1117501Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to Battery ECU Assembly)      		 *b to Central Gateway ECU (Network Gateway ECU)

      Standard Resistance

      Tester Connection Condition Specified Condition
      O211-9 (CA2H) - I26-4 (CG) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      O211-8 (CA2L) - 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 (BATTERY ECU ASSEMBLY - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) 

  8. CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 13 GLOBAL CAN JUNCTION CONNECTOR - BATTERY ECU ASSEMBLY) 
    1. Disconnect the No. 13 global CAN junction connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1116669Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 13 Global CAN Junction Connector)      		 *b to Battery ECU Assembly

      Standard Resistance

      Tester Connection Condition Specified Condition
      I263-3 (CANH) - I26-4 (CG) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      I263-14 (CANL) - I26-4 (CG)

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (NO. 13 GLOBAL CAN JUNCTION CONNECTOR - BATTERY ECU ASSEMBLY) 

    Result: 

    OK 

    See step  9

  9. CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 13 GLOBAL CAN JUNCTION CONNECTOR - HYBRID MOTOR CONTROL INVERTER ASSEMBLY) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1116671Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 13 Global CAN Junction Connector)      		 *b to Hybrid Motor Control Inverter Assembly

      Standard Resistance

      Tester Connection Condition Specified Condition
      I263-1 (CANH) - I26-4 (CG) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      I263-12 (CANL) - I26-4 (CG)

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  12

    Result: 

    OK 

    See step  10

  10. CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 13 GLOBAL CAN JUNCTION CONNECTOR - HYBRID VEHICLE CONTROL ECU) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1116670Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 13 Global CAN Junction Connector)      		 *b to Hybrid Vehicle Control ECU

      Standard Resistance

      Tester Connection Condition Specified Condition
      I263-13 (CANL) - I26-4 (CG) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      I263-13 (CANL) - I26-4 (CG)

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE NO. 13 GLOBAL CAN JUNCTION CONNECTOR 

    Result: 

    NG 

    See step  11

  11. CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 13 GLOBAL CAN JUNCTION CONNECTOR - HYBRID VEHICLE CONTROL ECU) 
    1. Disconnect the I249 hybrid vehicle control ECU connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1116670Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 13 Global CAN Junction Connector)      		 *b to Hybrid Vehicle Control ECU

      Standard Resistance

      Tester Connection Condition Specified Condition
      I263-2 (CANH) - I26-4 (CG) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      I263-13 (CANL) - I26-4 (CG)

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE HYBRID VEHICLE CONTROL ECU 

    Refer to REMOVAL [11/2022 - 12/2024] , or refer to REMOVAL [12/2024 - ]

    Result: 

    NG 

    REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (NO. 13 GLOBAL CAN JUNCTION CONNECTOR - HYBRID VEHICLE CONTROL ECU) 

  12. CHECK FOR SHORT TO GND IN CAN BUS LINE (HYBRID MOTOR CONTROL INVERTER ASSEMBLY - NO. 13 GLOBAL CAN JUNCTION CONNECTOR) 
    WARNING:

    Be sure to wear insulated gloves.

    1. Check that the service plug grip is not installed.
      NOTE:

      After removing the service plug grip, do not turn the ignition switch to ON (READY), unless instructed by the appropriate service information because this may cause a malfunction.

    2. Disconnect the hybrid motor control inverter assembly connector.
    3. Measure the resistance according to the value(s) in the table below.
      GTY1115082Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to Hybrid Motor Control Inverter Assembly)      		 *b to No. 13 Global CAN Junction Connector

      Standard Resistance

      Tester Connection Condition Specified Condition
      A187-5 (CANH) - I26-4 (CG) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      A187-6 (CANL) - I26-4 (CG)

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (HYBRID MOTOR CONTROL INVERTER ASSEMBLY - NO. 13 GLOBAL CAN JUNCTION CONNECTOR) 

    Result: 

    OK 

    See step  13

  13. CHECK FOR SHORT TO GND IN CAN BUS LINE (HYBRID MOTOR CONTROL INVERTER ASSEMBLY - ECM) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1115080Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to Hybrid Motor Control Inverter Assembly)      		 *b to ECM

      Standard Resistance

      Tester Connection Condition Specified Condition
      A187-13 (CADH) - I26-4 (CG) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      A187-14 (CADL) - I26-4 (CG)

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE MG ECU (REPLACE HYBRID MOTOR CONTROL INVERTER ASSEMBLY) 

    Result: 

    NG 

    See step  14

  14. CHECK FOR SHORT TO GND IN CAN BUS LINE (HYBRID MOTOR CONTROL INVERTER ASSEMBLY - ECM) 
    1. Disconnect the A47 ECM connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1115080Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to Hybrid Motor Control Inverter Assembly)      		 *b to ECM

      Standard Resistance

      Tester Connection Condition Specified Condition
      A187-13 (CADH) - I26-4 (CG) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      A187-14 (CADL) - I26-4 (CG)

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE ECM 

    Refer to REMOVAL [11/2022 - ]

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (HYBRID MOTOR CONTROL INVERTER ASSEMBLY - ECM) 

  15. CHECK FOR SHORT TO +B IN CAN BUS LINE (BATTERY ECU ASSEMBLY - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) 
    WARNING:

    Be sure to wear insulated gloves.

    1. Check that the service plug grip is not installed.
      NOTE:

      After removing the service plug grip, do not turn the ignition switch to ON (READY), unless instructed by the appropriate service information because this may cause a malfunction.

    2. Disconnect the battery ECU assembly connector.
    3. Measure the resistance according to the value(s) in the table below.
      GTY1117502Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to Battery ECU Assembly)      		 *b to Central Gateway ECU (Network Gateway ECU)

      Standard Resistance

      Tester Connection Condition Specified Condition
      O211-9 (CA2H) - I26-16 (BAT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher
      O211-8 (CA2L) - I26-16 (BAT)

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  17

    Result: 

    OK 

    See step  16

  16. CHECK FOR SHORT TO +B IN CAN BUS LINE (BATTERY ECU ASSEMBLY - NO. 13 GLOBAL CAN JUNCTION CONNECTOR) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1117500Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to Battery ECU Assembly)      		 *b to No. 13 Global CAN Junction Connector

      Standard Resistance

      Tester Connection Condition Specified Condition
      O211-20 (C2HB) - I26-16 (BAT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher
      O211-19 (C2LB) - I26-16 (BAT)

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE BATTERY ECU ASSEMBLY 

    Refer to REMOVAL [11/2022 - ]

    Result: 

    NG 

    See step  18

  17. CHECK FOR SHORT TO +B IN CAN BUS LINE (BATTERY ECU ASSEMBLY - 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.
      GTY1117502Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to Battery ECU Assembly)      		 *b to Central Gateway ECU (Network Gateway ECU)

      Standard Resistance

      Tester Connection Condition Specified Condition
      O211-9 (CA2H) - I26-16 (BAT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher
      O211-8 (CA2L) - 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 (BATTERY ECU ASSEMBLY - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) 

  18. CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 13 GLOBAL CAN JUNCTION CONNECTOR - BATTERY ECU ASSEMBLY) 
    1. Disconnect the No. 13 global CAN junction connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1116664Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 13 Global CAN Junction Connector)      		 *b to Battery ECU Assembly

      Standard Resistance

      Tester Connection Condition Specified Condition
      I263-3 (CANH) - I26-16 (BAT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher
      I263-14 (CANL) - I26-16 (BAT)

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (NO. 13 GLOBAL CAN JUNCTION CONNECTOR - BATTERY ECU ASSEMBLY) 

    Result: 

    OK 

    See step  19

  19. CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 13 GLOBAL CAN JUNCTION CONNECTOR - HYBRID MOTOR CONTROL INVERTER ASSEMBLY) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1116663Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 13 Global CAN Junction Connector)      		 *b to Hybrid Motor Control Inverter Assembly

      Standard Resistance

      Tester Connection Condition Specified Condition
      I263-1 (CANH) - I26-16 (BAT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher
      I263-12 (CANL) - I26-16 (BAT)

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  22

    Result: 

    OK 

    See step  20

  20. CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 13 GLOBAL CAN JUNCTION CONNECTOR - HYBRID VEHICLE CONTROL ECU) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1116666Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 13 Global CAN Junction Connector)      		 *b to Hybrid Vehicle Control ECU

      Standard Resistance

      Tester Connection Condition Specified Condition
      I263-2 (CANH) - I26-16 (BAT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher
      I263-13 (CANL) - I26-16 (BAT)

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE NO. 13 GLOBAL CAN JUNCTION CONNECTOR 

    Result: 

    NG 

    See step  21

  21. CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 13 GLOBAL CAN JUNCTION CONNECTOR - HYBRID VEHICLE CONTROL ECU) 
    1. Disconnect the I249 hybrid vehicle control ECU connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1116666Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 13 Global CAN Junction Connector)      		 *b to Hybrid Vehicle Control ECU

      Standard Resistance

      Tester Connection Condition Specified Condition
      I263-2 (CANH) - I26-16 (BAT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher
      I263-13 (CANL) - I26-16 (BAT)

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE HYBRID VEHICLE CONTROL ECU 

    Refer to REMOVAL [11/2022 - 12/2024] , or refer to REMOVAL [12/2024 - ]

    Result: 

    NG 

    REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (NO. 13 GLOBAL CAN JUNCTION CONNECTOR - HYBRID VEHICLE CONTROL ECU) 

  22. CHECK FOR SHORT TO +B IN CAN BUS LINE (HYBRID MOTOR CONTROL INVERTER ASSEMBLY - NO. 13 GLOBAL CAN JUNCTION CONNECTOR) 
    WARNING:

    Be sure to wear insulated gloves.

    1. Check that the service plug grip is not installed.
      NOTE:

      After removing the service plug grip, do not turn the ignition switch to ON (READY), unless instructed by the appropriate service information because this may cause a malfunction.

    2. Disconnect the hybrid motor control inverter assembly connector.
    3. Measure the resistance according to the value(s) in the table below.
      GTY1118874Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to Hybrid Motor Control Inverter Assembly)      		 *b to No. 13 Global CAN Junction Connector

      Standard Resistance

      Tester Connection Condition Specified Condition
      A187-5 (CANH) - I26-16 (BAT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher
      A187-6 (CANL) - I26-16 (BAT)

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (HYBRID MOTOR CONTROL INVERTER ASSEMBLY - NO. 13 GLOBAL CAN JUNCTION CONNECTOR) 

    Result: 

    OK 

    See step  23

  23. CHECK FOR SHORT TO +B IN CAN BUS LINE (HYBRID MOTOR CONTROL INVERTER ASSEMBLY - ECM) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1115083Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to Hybrid Motor Control Inverter Assembly)      		 *b to ECM

      Standard Resistance

      Tester Connection Condition Specified Condition
      A187-13 (CADH) - I26-16 (BAT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher
      A187-14 (CADL) - I26-16 (BAT)

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE MG ECU (REPLACE HYBRID MOTOR CONTROL INVERTER ASSEMBLY) 

    Result: 

    NG 

    See step  24

  24. CHECK FOR SHORT TO +B IN CAN BUS LINE (HYBRID MOTOR CONTROL INVERTER ASSEMBLY - ECM) 
    1. Disconnect the A47 ECM connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1115083Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to Hybrid Motor Control Inverter Assembly)      		 *b to ECM

      Standard Resistance

      Tester Connection Condition Specified Condition
      A187-13 (CADH) - I26-16 (BAT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher
      A187-14 (CADL) - I26-16 (BAT)

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE ECM 

    Refer to REMOVAL [11/2022 - ]

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (HYBRID MOTOR CONTROL INVERTER ASSEMBLY - ECM) 

  25. CHECK FOR SHORT IN CAN BUS LINES (BATTERY ECU ASSEMBLY - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) 
    WARNING:

    Be sure to wear insulated gloves.

    1. Check that the service plug grip is not installed.
      NOTE:

      After removing the service plug grip, do not turn the ignition switch to ON (READY), unless instructed by the appropriate service information because this may cause a malfunction.

    2. Disconnect the battery ECU assembly connector.
    3. Measure the resistance according to the value(s) in the table below.
      GTY1117487Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to Battery ECU Assembly)      		 *b to Central Gateway ECU (Network Gateway ECU)

      Standard Resistance

      Tester Connection Condition Specified Condition
      O211-9 (CA2H) - O211-8 (CA2L) Cable disconnected from negative (-) auxiliary battery terminal 108 to 132 Ω

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  27

    Result: 

    OK 

    See step  26

  26. CHECK FOR SHORT IN CAN BUS LINES (BATTERY ECU ASSEMBLY - NO. 13 GLOBAL CAN JUNCTION CONNECTOR) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1117485Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to Battery ECU Assembly)      		 *b to No. 13 Global CAN Junction Connector

      Standard Resistance

      Tester Connection Condition Specified Condition
      O211-20 (C2HB) - O211-19 (C2LB) Cable disconnected from negative (-) auxiliary battery terminal 108 to 132 Ω

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE BATTERY ECU ASSEMBLY 

    Refer to REMOVAL [11/2022 - ]

    Result: 

    NG 

    See step  28

  27. CHECK FOR SHORT IN CAN BUS LINES (BATTERY ECU ASSEMBLY - 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.
      GTY1117487Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to Battery ECU Assembly)      		 *b to Central Gateway ECU (Network Gateway ECU)

      Standard Resistance

      Tester Connection Condition Specified Condition
      O211-9 (CA2H) - O211-8 (CA2L) 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 (BATTERY ECU ASSEMBLY - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) 

  28. CHECK FOR SHORT IN CAN BUS LINES (NO. 13 GLOBAL CAN JUNCTION CONNECTOR - BATTERY ECU ASSEMBLY) 
    1. Disconnect the No. 13 global CAN junction connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1118457Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to No. 13 Global CAN Junction Connector)      		 *b to Battery ECU Assembly

      Standard Resistance

      Tester Connection Condition Specified Condition
      I263-3 (CANH) - I263-14 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 1 MΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN BUS LINES OR CONNECTOR (NO. 13 GLOBAL CAN JUNCTION CONNECTOR - BATTERY ECU ASSEMBLY) 

    Result: 

    OK 

    See step  29

  29. CHECK FOR SHORT IN CAN BUS LINES (NO. 13 GLOBAL CAN JUNCTION CONNECTOR - HYBRID MOTOR CONTROL INVERTER ASSEMBLY) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1113087Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to No. 13 Global CAN Junction Connector)      		 *b to Hybrid Motor Control Inverter Assembly

      Standard Resistance

      Tester Connection Condition Specified Condition
      I263-1 (CANH) - I263-12 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  32

    Result: 

    OK 

    See step  30

  30. CHECK FOR SHORT IN CAN BUS LINES (NO. 13 GLOBAL CAN JUNCTION CONNECTOR - HYBRID VEHICLE CONTROL ECU) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1113085Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to No. 13 Global CAN Junction Connector)      		 *b to Hybrid Vehicle Control ECU

      Standard Resistance

      Tester Connection Condition Specified Condition
      I263-2 (CANH) - I263-13 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE NO. 13 GLOBAL CAN JUNCTION CONNECTOR 

    Result: 

    NG 

    See step  31

  31. CHECK FOR SHORT IN CAN BUS LINES (NO. 13 GLOBAL CAN JUNCTION CONNECTOR - HYBRID VEHICLE CONTROL ECU) 
    1. Disconnect the I249 hybrid vehicle control ECU connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1113085Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to No. 13 Global CAN Junction Connector)      		 *b to Hybrid Vehicle Control ECU

      Standard Resistance

      Tester Connection Condition Specified Condition
      I263-2 (CANH) - I263-13 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 1 MΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE HYBRID VEHICLE CONTROL ECU 

    Refer to REMOVAL [11/2022 - 12/2024] , or refer to REMOVAL [12/2024 - ]

    Result: 

    NG 

    REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (NO. 13 GLOBAL CAN JUNCTION CONNECTOR - HYBRID VEHICLE CONTROL ECU) 

  32. CHECK FOR SHORT IN CAN BUS LINES (HYBRID MOTOR CONTROL INVERTER ASSEMBLY - NO. 13 GLOBAL CAN JUNCTION CONNECTOR) 
    WARNING:

    Be sure to wear insulated gloves.

    1. Check that the service plug grip is not installed.
      NOTE:

      After removing the service plug grip, do not turn the ignition switch to ON (READY), unless instructed by the appropriate service information because this may cause a malfunction.

    2. Disconnect the hybrid motor control inverter assembly connector.
    3. Measure the resistance according to the value(s) in the table below.
      GTY1115601Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to Hybrid Motor Control Inverter Assembly)      		 *b to No. 13 Global CAN Junction Connector

      Standard Resistance

      Tester Connection Condition Specified Condition
      A187-5 (CANH) - A187-6 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 1 MΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (HYBRID MOTOR CONTROL INVERTER ASSEMBLY - NO. 13 GLOBAL CAN JUNCTION CONNECTOR) 

    Result: 

    OK 

    See step  33

  33. CHECK FOR SHORT IN CAN BUS LINES (HYBRID MOTOR CONTROL INVERTER ASSEMBLY - ECM) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1115600Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to Hybrid Motor Control Inverter Assembly)      		 *b to ECM

      Standard Resistance

      Tester Connection Condition Specified Condition
      A187-13 (CADH) - A187-14 (CADL) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE MG ECU (REPLACE HYBRID MOTOR CONTROL INVERTER ASSEMBLY) 

    Result: 

    NG 

    See step  34

  34. CHECK FOR SHORT IN CAN BUS LINES (HYBRID MOTOR CONTROL INVERTER ASSEMBLY - ECM) 
    1. Disconnect the A47 ECM connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1115600Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to Hybrid Motor Control Inverter Assembly)      		 *b to ECM

      Standard Resistance

      Tester Connection Condition Specified Condition
      A187-13 (CADH) - A187-14 (CADL) Cable disconnected from negative (-) auxiliary battery terminal 1 MΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE ECM 

    Refer to REMOVAL [11/2022 - ]

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (HYBRID MOTOR CONTROL INVERTER ASSEMBLY - ECM) 

  35. CHECK FOR OPEN IN CAN MAIN 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.
      GTY1115363Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component with harness connected
      (Central Gateway ECU (Network Gateway ECU))

      Standard Resistance

      Tester Connection Condition Specified Condition
      I231-26 (CA4H) - I231-25 (CA4L) 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 [11/2022 - ]

    Result: 

    NG 

    See step  36

  36. CHECK FOR OPEN IN CAN MAIN BUS LINES (BATTERY ECU ASSEMBLY - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) 
    WARNING:

    Be sure to wear insulated gloves.

    1. Check that the service plug grip is not installed.
      NOTE:

      After removing the service plug grip, do not turn the ignition switch to ON (READY), unless instructed by the appropriate service information because this may cause a malfunction.

    2. Reconnect the I231 central gateway ECU (network gateway ECU) connector.
    3. Disconnect the battery ECU assembly connector.
    4. Measure the resistance according to the value(s) in the table below.
      GTY1117487Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to Battery ECU Assembly)      		 *b to Central Gateway ECU (Network Gateway ECU)

      Standard Resistance

      Tester Connection Condition Specified Condition
      O211-9 (CA2H) - O211-8 (CA2L) 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 (BATTERY ECU ASSEMBLY - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) 

    Result: 

    OK 

    See step  37

  37. CHECK FOR OPEN IN CAN MAIN BUS LINES (BATTERY ECU ASSEMBLY - NO. 13 GLOBAL CAN JUNCTION CONNECTOR) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1117485Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to Battery ECU Assembly)      		 *b to No. 13 Global CAN Junction Connector

      Standard Resistance

      Tester Connection Condition Specified Condition
      O211-20 (C2HB) - O211-19 (C2LB) Cable disconnected from negative (-) auxiliary battery terminal 108 to 132 Ω

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE BATTERY ECU ASSEMBLY 

    Refer to REMOVAL [11/2022 - ]

    Result: 

    NG 

    See step  38

  38. CHECK FOR OPEN IN CAN MAIN BUS LINES (NO. 13 GLOBAL CAN JUNCTION CONNECTOR - BATTERY ECU ASSEMBLY) 
    1. Reconnect the O211 battery ECU assembly connector.
    2. Disconnect the No. 13 global CAN junction connector.
    3. Measure the resistance according to the value(s) in the table below.
      GTY1118457Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to No. 13 Global CAN Junction Connector)      		 *b to Battery ECU Assembly

      Standard Resistance

      Tester Connection Condition Specified Condition
      I263-3 (CANH) - I263-14 (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. 13 GLOBAL CAN JUNCTION CONNECTOR - BATTERY ECU ASSEMBLY) 

    Result: 

    OK 

    See step  39

  39. CHECK FOR OPEN IN CAN MAIN BUS LINES (NO. 13 GLOBAL CAN JUNCTION CONNECTOR - HYBRID MOTOR CONTROL INVERTER ASSEMBLY) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1113087Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to No. 13 Global CAN Junction Connector)      		 *b to Hybrid Motor Control Inverter Assembly

      Standard Resistance

      Tester Connection Condition Specified Condition
      I263-1 (CANH) - I263-12 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 108 to 132 Ω

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE NO. 13 GLOBAL CAN JUNCTION CONNECTOR 

    Result: 

    NG 

    See step  40

  40. CHECK FOR OPEN IN CAN MAIN BUS LINES (HYBRID MOTOR CONTROL INVERTER ASSEMBLY - NO. 13 GLOBAL CAN JUNCTION CONNECTOR) 
    WARNING:

    Be sure to wear insulated gloves.

    1. Check that the service plug grip is not installed.
      NOTE:

      After removing the service plug grip, do not turn the ignition switch to ON (READY), unless instructed by the appropriate service information because this may cause a malfunction.

    2. Reconnect the I263 No. 13 global CAN junction connector.
    3. Disconnect the hybrid motor control inverter assembly connector.
    4. Measure the resistance according to the value(s) in the table below.
      GTY1115601Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to Hybrid Motor Control Inverter Assembly)      		 *b to No. 13 Global CAN Junction Connector

      Standard Resistance

      Tester Connection Condition Specified Condition
      A187-5 (CANH) - A187-6 (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 (HYBRID MOTOR CONTROL INVERTER ASSEMBLY - NO. 13 GLOBAL CAN JUNCTION CONNECTOR) 

    Result: 

    OK 

    See step  41

  41. CHECK FOR OPEN IN CAN MAIN BUS LINES (HYBRID MOTOR CONTROL INVERTER ASSEMBLY - ECM) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1115600Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to Hybrid Motor Control Inverter Assembly)      		 *b to ECM

      Standard Resistance

      Tester Connection Condition Specified Condition
      A187-13 (CADH) - A187-14 (CADL) Cable disconnected from negative (-) auxiliary battery terminal 108 to 132 Ω

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE MG ECU (REPLACE HYBRID MOTOR CONTROL INVERTER ASSEMBLY) 

    Result: 

    NG 

    See step  42

  42. CHECK FOR OPEN IN CAN MAIN BUS LINES (ECM) 
    1. Reconnect the A187 hybrid motor control inverter assembly connector.
    2. Disconnect the ECM connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      A47-7 (CFDH) - A47-8 (CFDL) Cable disconnected from negative (-) auxiliary battery terminal 108 to 132 Ω
      GTY1119002Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to ECM)

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE ECM 

    Refer to REMOVAL [11/2022 - ]

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN BUS LINES OR CONNECTOR (ECM - HYBRID MOTOR CONTROL INVERTER ASSEMBLY) 

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