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Check Bus 4 Line [12/2024 - ]: 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.
      GTY1109443Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component with harness connected
      (Central Gateway ECU (Network Gateway ECU))

      Standard Resistance

      Tester Connection Condition Specified Condition
      I231-24 (CA2H) - I231-23 (CA2L) Cable disconnected from negative (-) auxiliary battery terminal Below 70 Ω

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  47

    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.
      GTY1109443Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component with harness connected
      (Central Gateway ECU (Network Gateway ECU))

      Standard Resistance

      Tester Connection Condition Specified Condition
      I231-24 (CA2H) - I231-23 (CA2L) Cable disconnected from negative (-) auxiliary battery terminal 54 Ω or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  33

    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.
      GTY1113380Courtesy 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
      I231-24 (CA2H) - I26-16 (BAT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher
      I231-23 (CA2L) - I26-16 (BAT)

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  19

    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.
      GTY1113381Courtesy 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
      I231-24 (CA2H) - I26-4 (CG) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      I231-23 (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 

    See step  5

  5. CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 9 GLOBAL CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) 
    1. Disconnect the No. 9 global CAN junction connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1109987Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 9 Global CAN Junction Connector)      		 *b to Central Gateway ECU (Network Gateway ECU)

      Standard Resistance

      Tester Connection Condition Specified Condition
      A193-8 (CANH) - I26-4 (CG) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      A193-19 (CANL) - I26-4 (CG)

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  18

    Result: 

    OK 

    See step  6

  6. CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 9 GLOBAL CAN JUNCTION CONNECTOR - NO. 11 GLOBAL CAN JUNCTION CONNECTOR) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1109985Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 9 Global CAN Junction Connector)      		 *b to No. 11 Global CAN Junction Connector

      Standard Resistance

      Tester Connection Condition Specified Condition
      A193-10 (CANH) - I26-4 (CG) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      A193-21 (CANL) - I26-4 (CG)

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  11

    Result: 

    OK 

    See step  7

  7. CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 9 GLOBAL CAN JUNCTION CONNECTOR - SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY)) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1109986Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 9 Global CAN Junction Connector)      		 *b to Skid Control ECU (Brake Actuator Assembly)

      Standard Resistance

      Tester Connection Condition Specified Condition
      A193-9 (CANH) - I26-4 (CG) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      A193-20 (CANL) - I26-4 (CG)

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  9

    Result: 

    OK 

    See step  8

  8. CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 9 GLOBAL CAN JUNCTION CONNECTOR - ELECTRIC BRAKE BOOSTER (BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY)) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1109989Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 9 Global CAN Junction Connector)      		 *b to Electric Brake Booster (Brake Booster with Master Cylinder Assembly)

      Standard Resistance

      Tester Connection Condition Specified Condition
      A193-11 (CANH) - I26-4 (CG) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      A193-22 (CANL) - I26-4 (CG)

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE NO. 9 GLOBAL CAN JUNCTION CONNECTOR 

    Result: 

    NG 

    See step  10

  9. CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 9 GLOBAL CAN JUNCTION CONNECTOR - SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY)) 
    1. Disconnect the A151 skid control ECU (brake actuator assembly) connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1109986Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 9 Global CAN Junction Connector)      		 *b to Skid Control ECU (Brake Actuator Assembly)

      Standard Resistance

      Tester Connection Condition Specified Condition
      A193-9 (CANH) - I26-4 (CG) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      A193-20 (CANL) - I26-4 (CG)

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY) 

    Refer to REMOVAL [11/2022 - ]

    Result: 

    NG 

    REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (NO. 9 GLOBAL CAN JUNCTION CONNECTOR - SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY)) 

  10. CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 9 GLOBAL CAN JUNCTION CONNECTOR - ELECTRIC BRAKE BOOSTER (BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY)) 
    1. Disconnect the A189 electric brake booster (brake booster with master cylinder assembly) connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1109989Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 9 Global CAN Junction Connector)      		 *b to Electric Brake Booster (Brake Booster with Master Cylinder Assembly)

      Standard Resistance

      Tester Connection Condition Specified Condition
      A193-11 (CANH) - I26-4 (CG) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      A193-22 (CANL) - I26-4 (CG)

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE ELECTRIC BRAKE BOOSTER (BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY) 

    Refer to REMOVAL [11/2022 - ]

    Result: 

    NG 

    REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (NO. 9 GLOBAL CAN JUNCTION CONNECTOR - ELECTRIC BRAKE BOOSTER (BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY)) 

  11. CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 11 GLOBAL CAN JUNCTION CONNECTOR - NO. 9 GLOBAL CAN JUNCTION CONNECTOR) 
    1. Disconnect the No. 11 global CAN junction connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1111870Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 11 Global CAN Junction Connector)      		 *b to No. 9 Global CAN Junction Connector

      Standard Resistance

      Tester Connection Condition Specified Condition
      I264-3 (CANH) - I26-4 (CG) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      I264-10 (CANL) - I26-4 (CG)

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (NO. 11 GLOBAL CAN JUNCTION CONNECTOR - NO. 9 GLOBAL CAN JUNCTION CONNECTOR) 

    Result: 

    OK 

    See step  12

  12. CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 11 GLOBAL CAN JUNCTION CONNECTOR - POWER STEERING ECU ASSEMBLY) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1118204Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 11 Global CAN Junction Connector)      		 *b to Power Steering ECU Assembly

      Standard Resistance

      Tester Connection Condition Specified Condition
      I264-7 (CANH) - I26-4 (CG) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      I264-14 (CANL) - I26-4 (CG)

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  15

    Result: 

    OK 

    See step  13

  13. CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 11 GLOBAL CAN JUNCTION CONNECTOR - STEERING SENSOR) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1111866Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 11 Global CAN Junction Connector)      		 *b to Steering Sensor

      Standard Resistance

      Tester Connection Condition Specified Condition
      I264-5 (CANH) - I26-4 (CG) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      I264-12 (CANL) - I26-4 (CG)

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  16

    Result: 

    OK 

    See step  14

  14. CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 11 GLOBAL CAN JUNCTION CONNECTOR - AIRBAG ECU ASSEMBLY) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1111873Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 11 Global CAN Junction Connector)      		 *b to Airbag ECU Assembly

      Standard Resistance

      Tester Connection Condition Specified Condition
      I264-1 (CANH) - I26-4 (CG) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      I264-8 (CANL) - I26-4 (CG)

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE NO. 11 GLOBAL CAN JUNCTION CONNECTOR 

    Result: 

    NG 

    See step  17

  15. CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 11 GLOBAL CAN JUNCTION CONNECTOR - POWER STEERING ECU ASSEMBLY) 
    1. Disconnect the I21 power steering ECU assembly connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1118204Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 11 Global CAN Junction Connector)      		 *b to Power Steering ECU Assembly

      Standard Resistance

      Tester Connection Condition Specified Condition
      I264-7 (CANH) - I26-4 (CG) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      I264-14 (CANL) - I26-4 (CG)

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE POWER STEERING ECU ASSEMBLY 

    Refer to REMOVAL [11/2022 - ]

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (NO. 11 GLOBAL CAN JUNCTION CONNECTOR - POWER STEERING ECU ASSEMBLY) 

  16. CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 11 GLOBAL CAN JUNCTION CONNECTOR - STEERING SENSOR) 
    1. Disconnect the I229 steering sensor connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1111866Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 11 Global CAN Junction Connector)      		 *b to Steering Sensor

      Standard Resistance

      Tester Connection Condition Specified Condition
      I264-5 (CANH) - I26-4 (CG) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      I264-12 (CANL) - I26-4 (CG)

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE STEERING SENSOR 

    Refer to REMOVAL [11/2022 - ]

    Result: 

    NG 

    REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (NO. 11 GLOBAL CAN JUNCTION CONNECTOR - STEERING SENSOR) 

  17. CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 11 GLOBAL CAN JUNCTION CONNECTOR - AIRBAG ECU ASSEMBLY) 
    1. Disconnect the I292 airbag ECU assembly connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1111873Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 11 Global CAN Junction Connector)      		 *b to Airbag ECU Assembly

      Standard Resistance

      Tester Connection Condition Specified Condition
      I264-1 (CANH) - I26-4 (CG) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      I264-8 (CANL) - I26-4 (CG)

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE AIRBAG ECU ASSEMBLY 

    Refer to REMOVAL [11/2022 - ]

    Result: 

    NG 

    REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (NO. 11 GLOBAL CAN JUNCTION CONNECTOR - AIRBAG ECU ASSEMBLY) 

  18. CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 9 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.
      GTY1109987Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 9 Global CAN Junction Connector)      		 *b to Central Gateway ECU (Network Gateway ECU)

      Standard Resistance

      Tester Connection Condition Specified Condition
      A193-8 (CANH) - I26-4 (CG) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      A193-19 (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. 9 GLOBAL CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) 

  19. CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 9 GLOBAL CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) 
    1. Disconnect the No. 9 global CAN junction connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1119255Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 9 Global CAN Junction Connector)      		 *b to Central Gateway ECU (Network Gateway ECU)

      Standard Resistance

      Tester Connection Condition Specified Condition
      A193-8 (CANH) - I26-16 (BAT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher
      A193-19 (CANL) - I26-16 (BAT)

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  32

    Result: 

    OK 

    See step  20

  20. CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 9 GLOBAL CAN JUNCTION CONNECTOR - NO. 11 GLOBAL CAN JUNCTION CONNECTOR) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1116924Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 9 Global CAN Junction Connector)      		 *b to No. 11 Global CAN Junction Connector

      Standard Resistance

      Tester Connection Condition Specified Condition
      A193-10 (CANH) - I26-16 (BAT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher
      A193-21 (CANL) - I26-16 (BAT)

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  25

    Result: 

    OK 

    See step  21

  21. CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 9 GLOBAL CAN JUNCTION CONNECTOR - SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY)) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1116923Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 9 Global CAN Junction Connector)      		 *b to Skid Control ECU (Brake Actuator Assembly)

      Standard Resistance

      Tester Connection Condition Specified Condition
      A193-9 (CANH) - I26-16 (BAT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher
      A193-20 (CANL) - I26-16 (BAT)

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  23

    Result: 

    OK 

    See step  22

  22. CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 9 GLOBAL CAN JUNCTION CONNECTOR - ELECTRIC BRAKE BOOSTER (BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY)) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1116925Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 9 Global CAN Junction Connector)      		 *b to Electric Brake Booster (Brake Booster with Master Cylinder Assembly)

      Standard Resistance

      Tester Connection Condition Specified Condition
      A193-11 (CANH) - I26-16 (BAT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher
      A193-22 (CANL) - I26-16 (BAT)

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE NO. 9 GLOBAL CAN JUNCTION CONNECTOR 

    Result: 

    NG 

    See step  24

  23. CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 9 GLOBAL CAN JUNCTION CONNECTOR - SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY)) 
    1. Disconnect the A151 skid control ECU (brake actuator assembly) connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1116923Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 9 Global CAN Junction Connector)      		 *b to Skid Control ECU (Brake Actuator Assembly)

      Standard Resistance

      Tester Connection Condition Specified Condition
      A193-9 (CANH) - I26-16 (BAT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher
      A193-20 (CANL) - I26-16 (BAT)

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY) 

    Refer to REMOVAL [11/2022 - ]

    Result: 

    NG 

    REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (NO. 9 GLOBAL CAN JUNCTION CONNECTOR - SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY)) 

  24. CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 9 GLOBAL CAN JUNCTION CONNECTOR - ELECTRIC BRAKE BOOSTER (BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY)) 
    1. Disconnect the A189 electric brake booster (brake booster with master cylinder assembly) connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1116925Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 9 Global CAN Junction Connector)      		 *b to Electric Brake Booster (Brake Booster with Master Cylinder Assembly)

      Standard Resistance

      Tester Connection Condition Specified Condition
      A193-11 (CANH) - I26-16 (BAT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher
      A193-22 (CANL) - I26-16 (BAT)

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE ELECTRIC BRAKE BOOSTER (BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY) 

    Refer to REMOVAL [11/2022 - ]

    Result: 

    NG 

    REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (NO. 9 GLOBAL CAN JUNCTION CONNECTOR - ELECTRIC BRAKE BOOSTER (BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY)) 

  25. CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 11 GLOBAL CAN JUNCTION CONNECTOR - NO. 9 GLOBAL CAN JUNCTION CONNECTOR) 
    1. Disconnect the No. 11 global CAN junction connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1118205Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 11 Global CAN Junction Connector)      		 *b to No. 9 Global CAN Junction Connector

      Standard Resistance

      Tester Connection Condition Specified Condition
      I264-3 (CANH) - I26-16 (BAT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher
      I264-10 (CANL) - I26-16 (BAT)

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (NO. 11 GLOBAL CAN JUNCTION CONNECTOR - NO. 9 GLOBAL CAN JUNCTION CONNECTOR) 

    Result: 

    OK 

    See step  26

  26. CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 11 GLOBAL CAN JUNCTION CONNECTOR - POWER STEERING ECU ASSEMBLY) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1118206Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 11 Global CAN Junction Connector)      		 *b to Power Steering ECU Assembly

      Standard Resistance

      Tester Connection Condition Specified Condition
      I264-7 (CANH) - I26-16 (BAT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher
      I264-14 (CANL) - I26-16 (BAT)

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  29

    Result: 

    OK 

    See step  27

  27. CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 11 GLOBAL CAN JUNCTION CONNECTOR - STEERING SENSOR) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1111871Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 11 Global CAN Junction Connector)      		 *b to Steering Sensor

      Standard Resistance

      Tester Connection Condition Specified Condition
      I264-5 (CANH) - I26-16 (BAT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher
      I264-12 (CANL) - I26-16 (BAT)

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  30

    Result: 

    OK 

    See step  28

  28. CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 11 GLOBAL CAN JUNCTION CONNECTOR - AIRBAG ECU ASSEMBLY) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1111872Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 11 Global CAN Junction Connector)      		 *b to Airbag ECU Assembly

      Standard Resistance

      Tester Connection Condition Specified Condition
      I264-1 (CANH) - I26-16 (BAT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher
      I264-8 (CANL) - I26-16 (BAT)

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE NO. 11 GLOBAL CAN JUNCTION CONNECTOR 

    Result: 

    NG 

    See step  31

  29. CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 11 GLOBAL CAN JUNCTION CONNECTOR - POWER STEERING ECU ASSEMBLY) 
    1. Disconnect the I21 power steering ECU assembly connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1118206Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 11 Global CAN Junction Connector)      		 *b to Power Steering ECU Assembly

      Standard Resistance

      Tester Connection Condition Specified Condition
      I264-7 (CANH) - I26-16 (BAT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher
      I264-14 (CANL) - I26-16 (BAT)

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE POWER STEERING ECU ASSEMBLY 

    Refer to REMOVAL [11/2022 - ]

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (NO. 11 GLOBAL CAN JUNCTION CONNECTOR - POWER STEERING ECU ASSEMBLY) 

  30. CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 11 GLOBAL CAN JUNCTION CONNECTOR - STEERING SENSOR) 
    1. Disconnect the I229 steering sensor connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1111871Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 11 Global CAN Junction Connector)      		 *b to Steering Sensor

      Standard Resistance

      Tester Connection Condition Specified Condition
      I264-5 (CANH) - I26-16 (BAT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher
      I264-12 (CANL) - I26-16 (BAT)

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE STEERING SENSOR 

    Refer to REMOVAL [11/2022 - ]

    Result: 

    NG 

    REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (NO. 11 GLOBAL CAN JUNCTION CONNECTOR - STEERING SENSOR) 

  31. CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 11 GLOBAL CAN JUNCTION CONNECTOR - AIRBAG ECU ASSEMBLY) 
    1. Disconnect the I292 airbag ECU assembly connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1111872Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 11 Global CAN Junction Connector)      		 *b to Airbag ECU Assembly

      Standard Resistance

      Tester Connection Condition Specified Condition
      I264-1 (CANH) - I26-16 (BAT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher
      I264-8 (CANL) - I26-16 (BAT)

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE AIRBAG ECU ASSEMBLY 

    Refer to REMOVAL [11/2022 - ]

    Result: 

    NG 

    REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (NO. 11 GLOBAL CAN JUNCTION CONNECTOR - AIRBAG ECU ASSEMBLY) 

  32. CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 9 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.
      GTY1119255Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 9 Global CAN Junction Connector)      		 *b to Central Gateway ECU (Network Gateway ECU)

      Standard Resistance

      Tester Connection Condition Specified Condition
      A193-8 (CANH) - I26-16 (BAT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher
      A193-19 (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. 9 GLOBAL CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) 

  33. CHECK FOR SHORT IN CAN BUS LINES (NO. 9 GLOBAL CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) 
    1. Disconnect the No. 9 global CAN junction connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1117128Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to No. 9 Global CAN Junction Connector)      		 *b to Central Gateway ECU (Network Gateway ECU)

      Standard Resistance

      Tester Connection Condition Specified Condition
      A193-8 (CANH) - A193-19 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 108 to 132 Ω

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  46

    Result: 

    OK 

    See step  34

  34. CHECK FOR SHORT IN CAN BUS LINES (NO. 9 GLOBAL CAN JUNCTION CONNECTOR - NO. 11 GLOBAL CAN JUNCTION CONNECTOR) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1117129Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to No. 9 Global CAN Junction Connector)      		 *b to No. 11 Global CAN Junction Connector

      Standard Resistance

      Tester Connection Condition Specified Condition
      A193-10 (CANH) - A193-21 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 108 to 132 Ω

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  39

    Result: 

    OK 

    See step  35

  35. CHECK FOR SHORT IN CAN BUS LINES (NO. 9 GLOBAL CAN JUNCTION CONNECTOR - SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY)) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1119297Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to No. 9 Global CAN Junction Connector)      		 *b to Skid Control ECU (Brake Actuator Assembly)

      Standard Resistance

      Tester Connection Condition Specified Condition
      A193-9 (CANH) - A193-20 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  37

    Result: 

    OK 

    See step  36

  36. CHECK FOR SHORT IN CAN BUS LINES (NO. 9 GLOBAL CAN JUNCTION CONNECTOR - ELECTRIC BRAKE BOOSTER (BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY)) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1119296Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to No. 9 Global CAN Junction Connector)      		 *b to Electric Brake Booster (Brake Booster with Master Cylinder Assembly)

      Standard Resistance

      Tester Connection Condition Specified Condition
      A193-11 (CANH) - A193-22 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE NO. 9 GLOBAL CAN JUNCTION CONNECTOR 

    Result: 

    NG 

    See step  38

  37. CHECK FOR SHORT IN CAN BUS LINES (NO. 9 GLOBAL CAN JUNCTION CONNECTOR - SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY)) 
    1. Disconnect the A151 skid control ECU (brake actuator assembly) connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1119297Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to No. 9 Global CAN Junction Connector)      		 *b to Skid Control ECU (Brake Actuator Assembly)

      Standard Resistance

      Tester Connection Condition Specified Condition
      A193-9 (CANH) - A193-20 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 1 MΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY) 

    Refer to REMOVAL [11/2022 - ]

    Result: 

    NG 

    REPAIR OR REPLACE CAN BRANCH LINES OR CONNECTOR (NO. 9 GLOBAL CAN JUNCTION CONNECTOR - SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY)) 

  38. CHECK FOR SHORT IN CAN BUS LINES (NO. 9 GLOBAL CAN JUNCTION CONNECTOR - ELECTRIC BRAKE BOOSTER (BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY)) 
    1. Disconnect the A189 electric brake booster (brake booster with master cylinder assembly) connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1119296Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to No. 9 Global CAN Junction Connector)      		 *b to Electric Brake Booster (Brake Booster with Master Cylinder Assembly)

      Standard Resistance

      Tester Connection Condition Specified Condition
      A193-11 (CANH) - A193-22 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 1 MΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE ELECTRIC BRAKE BOOSTER (BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY) 

    Refer to REMOVAL [11/2022 - ]

    Result: 

    NG 

    REPAIR OR REPLACE CAN BRANCH LINES OR CONNECTOR (NO. 9 GLOBAL CAN JUNCTION CONNECTOR - ELECTRIC BRAKE BOOSTER (BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY)) 

  39. CHECK FOR SHORT IN CAN BUS LINES (NO. 11 GLOBAL CAN JUNCTION CONNECTOR - NO. 9 GLOBAL CAN JUNCTION CONNECTOR) 
    1. Reconnect the A193 No. 9 global CAN junction connector.
    2. Disconnect the No. 11 global CAN junction connector.
    3. Measure the resistance according to the value(s) in the table below.
      GTY1113763Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to No. 11 Global CAN Junction Connector)      		 *b to No. 9 Global CAN Junction Connector

      Standard Resistance

      Tester Connection Condition Specified Condition
      I264-3 (CANH) - I264-10 (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. 11 GLOBAL CAN JUNCTION CONNECTOR - NO. 9 GLOBAL CAN JUNCTION CONNECTOR) 

    Result: 

    OK 

    See step  40

  40. CHECK FOR SHORT IN CAN BUS LINES (NO. 11 GLOBAL CAN JUNCTION CONNECTOR - POWER STEERING ECU ASSEMBLY) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1113762Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to No. 11 Global CAN Junction Connector)      		 *b to Power Steering ECU Assembly

      Standard Resistance

      Tester Connection Condition Specified Condition
      I264-7 (CANH) - I264-14 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 108 to 132 Ω

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  43

    Result: 

    OK 

    See step  41

  41. CHECK FOR SHORT IN CAN BUS LINES (NO. 11 GLOBAL CAN JUNCTION CONNECTOR - STEERING SENSOR) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1113760Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to No. 11 Global CAN Junction Connector)      		 *b to Steering Sensor

      Standard Resistance

      Tester Connection Condition Specified Condition
      I264-5 (CANH) - I264-12 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  44

    Result: 

    OK 

    See step  42

  42. CHECK FOR SHORT IN CAN BUS LINES (NO. 11 GLOBAL CAN JUNCTION CONNECTOR - AIRBAG ECU ASSEMBLY) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1113759Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to No. 11 Global CAN Junction Connector)      		 *b to Airbag ECU Assembly

      Standard Resistance

      Tester Connection Condition Specified Condition
      I264-1 (CANH) - I264-8 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE NO. 11 GLOBAL CAN JUNCTION CONNECTOR 

    Result: 

    NG 

    See step  45

  43. CHECK FOR SHORT IN CAN BUS LINES (NO. 11 GLOBAL CAN JUNCTION CONNECTOR - POWER STEERING ECU ASSEMBLY) 
    1. Disconnect the I21 power steering ECU assembly connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1113762Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to No. 11 Global CAN Junction Connector)      		 *b to Power Steering ECU Assembly

      Standard Resistance

      Tester Connection Condition Specified Condition
      I264-7 (CANH) - I264-14 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 1 MΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE POWER STEERING ECU ASSEMBLY 

    Refer to REMOVAL [11/2022 - ]

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN BUS LINES OR CONNECTOR (NO. 11 GLOBAL CAN JUNCTION CONNECTOR - POWER STEERING ECU ASSEMBLY) 

  44. CHECK FOR SHORT IN CAN BUS LINES (NO. 11 GLOBAL CAN JUNCTION CONNECTOR - STEERING SENSOR) 
    1. Disconnect the I229 steering sensor connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1113760Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to No. 11 Global CAN Junction Connector)      		 *b to Steering Sensor

      Standard Resistance

      Tester Connection Condition Specified Condition
      I264-5 (CANH) - I264-12 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 1 MΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE STEERING SENSOR 

    Refer to REMOVAL [11/2022 - ]

    Result: 

    NG 

    REPAIR OR REPLACE CAN BRANCH LINES OR CONNECTOR (NO. 11 GLOBAL CAN JUNCTION CONNECTOR - STEERING SENSOR) 

  45. CHECK FOR SHORT IN CAN BUS LINES (NO. 11 GLOBAL CAN JUNCTION CONNECTOR - AIRBAG ECU ASSEMBLY) 
    1. Disconnect the I292 airbag ECU assembly connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1113759Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to No. 11 Global CAN Junction Connector)      		 *b to Airbag ECU Assembly

      Standard Resistance

      Tester Connection Condition Specified Condition
      I264-1 (CANH) - I264-8 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 1 MΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE AIRBAG ECU ASSEMBLY 

    Refer to REMOVAL [11/2022 - ]

    Result: 

    NG 

    REPAIR OR REPLACE CAN BRANCH LINES OR CONNECTOR (NO. 11 GLOBAL CAN JUNCTION CONNECTOR - AIRBAG ECU ASSEMBLY) 

  46. CHECK FOR SHORT IN CAN BUS LINES (NO. 9 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.
      GTY1117128Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to No. 9 Global CAN Junction Connector)      		 *b to Central Gateway ECU (Network Gateway ECU)

      Standard Resistance

      Tester Connection Condition Specified Condition
      A193-8 (CANH) - A193-19 (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. 9 GLOBAL CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) 

  47. 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.
      GTY1115358Courtesy 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
      I231-24 (CA2H) - I231-23 (CA2L) 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  48

  48. CHECK FOR OPEN IN CAN MAIN BUS LINES (NO. 9 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. 9 global CAN junction connector.
    3. Measure the resistance according to the value(s) in the table below.
      GTY1117128Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to No. 9 Global CAN Junction Connector)      		 *b to Central Gateway ECU (Network Gateway ECU)

      Standard Resistance

      Tester Connection Condition Specified Condition
      A193-8 (CANH) - A193-19 (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. 9 GLOBAL CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) 

    Result: 

    OK 

    See step  49

  49. CHECK FOR OPEN IN CAN MAIN BUS LINES (NO. 9 GLOBAL CAN JUNCTION CONNECTOR - NO. 11 GLOBAL CAN JUNCTION CONNECTOR) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1117129Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to No. 9 Global CAN Junction Connector)      		 *b to No. 11 Global CAN Junction Connector

      Standard Resistance

      Tester Connection Condition Specified Condition
      A193-10 (CANH) - A193-21 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 108 to 132 Ω

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE NO. 9 GLOBAL CAN JUNCTION CONNECTOR 

    Result: 

    NG 

    See step  50

  50. CHECK FOR OPEN IN CAN MAIN BUS LINES (NO. 11 GLOBAL CAN JUNCTION CONNECTOR - NO. 9 GLOBAL CAN JUNCTION CONNECTOR) 
    1. Reconnect the A193 No. 9 global CAN junction connector.
    2. Disconnect the No. 11 global CAN junction connector.
    3. Measure the resistance according to the value(s) in the table below.
      GTY1113763Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to No. 11 Global CAN Junction Connector)      		 *b to No. 9 Global CAN Junction Connector

      Standard Resistance

      Tester Connection Condition Specified Condition
      I264-3 (CANH) - I264-10 (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. 11 GLOBAL CAN JUNCTION CONNECTOR - NO. 9 GLOBAL CAN JUNCTION CONNECTOR) 

    Result: 

    OK 

    See step  51

  51. CHECK FOR OPEN IN CAN MAIN BUS LINES (NO. 11 GLOBAL CAN JUNCTION CONNECTOR - POWER STEERING ECU ASSEMBLY) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1113762Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to No. 11 Global CAN Junction Connector)      		 *b to Power Steering ECU Assembly

      Standard Resistance

      Tester Connection Condition Specified Condition
      I264-7 (CANH) - I264-14 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 108 to 132 Ω

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE NO. 11 GLOBAL CAN JUNCTION CONNECTOR 

    Result: 

    NG 

    See step  52

  52. CHECK FOR OPEN IN CAN MAIN BUS LINES (POWER STEERING ECU ASSEMBLY) 
    1. Reconnect the I264 No. 11 global CAN junction connector.
    2. Disconnect the power steering ECU assembly connector.
    3. Measure the resistance according to the value(s) in the table below.
      GTY1114319Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to Power Steering ECU Assembly)

      Standard Resistance

      Tester Connection Condition Specified Condition
      I21-7 (CANH) - I21-8 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 108 to 132 Ω

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE POWER STEERING ECU ASSEMBLY 

    Refer to REMOVAL [11/2022 - ]

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN BUS LINES OR CONNECTOR (POWER STEERING ECU ASSEMBLY - NO. 11 GLOBAL CAN JUNCTION CONNECTOR) 

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