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Home >> Toyota >> 2024 >> Corolla LE >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 88 (Can Communication System (HEV) - Circuit Tests (6 Of 6)) >> CAN COMMUNICATION SYSTEM (for HV Model) >> Check Bus 5 Line [09/2022 - 08/2023] >> Procedure

Check Bus 5 Line [09/2022 - 08/2023]: 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.
      GTY1117572Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component with harness connected
      (Central Gateway ECU (Network Gateway ECU))

      Standard Resistance

      Tester Connection Condition Specified Condition
      I173-7 (CA5H) - I173-8 (CA5L) Cable disconnected from negative (-) auxiliary battery terminal Below 70 Ω

      Result

      Result
      OK
      NG

    Result: 

    NG 

    See step  38

    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.
      GTY1117572Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component with harness connected
      (Central Gateway ECU (Network Gateway ECU))

      Standard Resistance

      Tester Connection Condition Specified Condition
      I173-7 (CA5H) - I173-8 (CA5L) Cable disconnected from negative (-) auxiliary battery terminal 54 Ω or higher

      Result

      Result
      OK
      NG

    Result: 

    NG 

    See step  27

    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.
      GTY1118944Courtesy 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
      I173-7 (CA5H) - I26-16 (BAT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher
      I173-8 (CA5L) - I26-16 (BAT)

      Result

      Result
      OK
      NG

    Result: 

    NG 

    See step  16

    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.
      GTY1115393Courtesy 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
      I173-7 (CA5H) - I26-4 (CG) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      I173-8 (CA5L) - I26-4 (CG)

      Result

      Result
      OK
      NG

    Result: 

    OK 

    REPLACE CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU) 

    Refer to REMOVAL [09/2022 - 11/2022] , or refer to REMOVAL [11/2022 - 09/2024]

    Result: 

    NG 

    See step  5

  5. CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 17 CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) 
    1. Disconnect the I216 No. 17 CAN junction connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1115436Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 17 CAN Junction Connector)      		 *b to Central Gateway ECU (Network Gateway ECU)

      Standard Resistance

      Tester Connection Condition Specified Condition
      I216-3 (CANH) - I26-4 (CG) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      I216-7 (CANL) - I26-4 (CG)

      Result

      Result
      OK
      NG

    Result: 

    NG 

    See step  10

    Result: 

    OK 

    See step  6

  6. CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 17 CAN JUNCTION CONNECTOR - NO. 12 CAN JUNCTION CONNECTOR) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1115435Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 17 CAN Junction Connector)      		 *b to No. 12 CAN Junction Connector

      Standard Resistance

      Tester Connection Condition Specified Condition
      I216-4 (CANH) - I26-4 (CG) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      I216-8 (CANL) - I26-4 (CG)

      Result

      Result
      OK
      NG

    Result: 

    NG 

    See step  13

    Result: 

    OK 

    See step  7

  7. CHECK VEHICLE TYPE 
    1. Check vehicle type.

      Result

      Result Proceed to
      w/ Smart Key System A
      w/o Smart Key System B

    Result: 

    B 

    See step  9

    Result: 

    A 

    See step  8

  8. CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 17 CAN JUNCTION CONNECTOR - CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1115434Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 17 CAN Junction Connector)      		 *b to Certification ECU (Smart Key ECU Assembly)

      Standard Resistance

      Tester Connection Condition Specified Condition
      I216-1 (CANH) - I26-4 (CG) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      I216-5 (CANL) - I26-4 (CG)

      Result

      Result
      OK
      NG

    Result: 

    NG 

    See step  11

    Result: 

    OK 

    See step  9

  9. CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 17 CAN JUNCTION CONNECTOR - AIR CONDITIONING AMPLIFIER ASSEMBLY) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1115433Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 17 CAN Junction Connector)      		 *b to Air Conditioning Amplifier Assembly

      Standard Resistance

      Tester Connection Condition Specified Condition
      I216-2 (CANH) - I26-4 (CG) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      I216-6 (CANL) - I26-4 (CG)

      Result

      Result
      OK
      NG

    Result: 

    OK 

    REPLACE NO. 17 CAN JUNCTION CONNECTOR 

    Result: 

    NG 

    See step  12

  10. CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 17 CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) 
    1. Disconnect the I173 central gateway ECU (network gateway ECU) connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1115436Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 17 CAN Junction Connector)      		 *b to Central Gateway ECU (Network Gateway ECU)

      Standard Resistance

      Tester Connection Condition Specified Condition
      I216-3 (CANH) - I26-4 (CG) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      I216-7 (CANL) - I26-4 (CG)

      Result

      Result
      OK
      NG

    Result: 

    OK 

    REPLACE CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU) 

    Refer to REMOVAL [09/2022 - 11/2022] , or refer to REMOVAL [11/2022 - 09/2024]

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (NO. 17 CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) 

  11. CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 17 CAN JUNCTION CONNECTOR - CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)) 
    1. Disconnect the I167 certification ECU (smart key ECU assembly) connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1115434Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 17 CAN Junction Connector)      		 *b to Certification ECU (Smart Key ECU Assembly)

      Standard Resistance

      Tester Connection Condition Specified Condition
      I216-1 (CANH) - I26-4 (CG) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      I216-5 (CANL) - I26-4 (CG)

      Result

      Result
      OK
      NG

    Result: 

    OK 

    REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) 

    Refer to REMOVAL [09/2022 - 11/2022] , or refer to REMOVAL [11/2022 - 09/2024]

    Result: 

    NG 

    REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (NO. 17 CAN JUNCTION CONNECTOR - CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)) 

  12. CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 17 CAN JUNCTION CONNECTOR - AIR CONDITIONING AMPLIFIER ASSEMBLY) 
    1. Disconnect the I49 air conditioning amplifier assembly connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1115433Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 17 CAN Junction Connector)      		 *b to Air Conditioning Amplifier Assembly

      Standard Resistance

      Tester Connection Condition Specified Condition
      I216-2 (CANH) - I26-4 (CG) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      I216-6 (CANL) - I26-4 (CG)

      Result

      Result
      OK
      NG

    Result: 

    OK 

    REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY 

    Refer to REMOVAL [09/2022 - 11/2022] , or refer to REMOVAL [11/2022 - ]

    Result: 

    NG 

    REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (NO. 17 CAN JUNCTION CONNECTOR - AIR CONDITIONING AMPLIFIER ASSEMBLY) 

  13. CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 12 CAN JUNCTION CONNECTOR - NO. 17 CAN JUNCTION CONNECTOR) 
    1. Disconnect the A148 No. 12 CAN junction connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1115432Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 12 CAN Junction Connector)      		 *b to No. 17 CAN Junction Connector

      Standard Resistance

      Tester Connection Condition Specified Condition
      A148-2 (CANH) - I26-4 (CG) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      A148-6 (CANL) - I26-4 (CG)

      Result

      Result
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (NO. 12 CAN JUNCTION CONNECTOR - NO. 17 CAN JUNCTION CONNECTOR) 

    Result: 

    OK 

    See step  14

  14. CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 12 CAN JUNCTION CONNECTOR - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1118951Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 12 CAN Junction Connector)      		 *b to Main Body ECU (Multiplex Network Body ECU)

      Standard Resistance

      Tester Connection Condition Specified Condition
      A148-1 (CANH) - I26-4 (CG) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      A148-5 (CANL) - I26-4 (CG)

      Result

      Result
      OK
      NG

    Result: 

    OK 

    REPLACE NO. 12 CAN JUNCTION CONNECTOR 

    Result: 

    NG 

    See step  15

  15. CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 12 CAN JUNCTION CONNECTOR - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)) 
    1. Disconnect the I85 main body ECU (multiplex network body ECU) connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1118951Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 12 CAN Junction Connector)      		 *b to Main Body ECU (Multiplex Network Body ECU)

      Standard Resistance

      Tester Connection Condition Specified Condition
      A148-1 (CANH) - I26-4 (CG) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      A148-5 (CANL) - I26-4 (CG)

      Result

      Result
      OK
      NG

    Result: 

    OK 

    REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) 

    Refer to REMOVAL [09/2022 - 11/2022] , or refer to REMOVAL [11/2022 - 09/2024]

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (NO. 12 CAN JUNCTION CONNECTOR - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)) 

  16. CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 17 CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) 
    1. Disconnect the I216 No. 17 CAN junction connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1115439Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 17 CAN Junction Connector)      		 *b to Central Gateway ECU (Network Gateway ECU)

      Standard Resistance

      Tester Connection Condition Specified Condition
      I216-3 (CANH) - I26-16 (BAT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher
      I216-7 (CANL) - I26-16 (BAT)

      Result

      Result
      OK
      NG

    Result: 

    NG 

    See step  21

    Result: 

    OK 

    See step  17

  17. CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 17 CAN JUNCTION CONNECTOR - NO. 12 CAN JUNCTION CONNECTOR) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1115444Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 17 CAN Junction Connector)      		 *b to No. 12 CAN Junction Connector

      Standard Resistance

      Tester Connection Condition Specified Condition
      I216-4 (CANH) - I26-16 (BAT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher
      I216-8 (CANL) - I26-16 (BAT)

      Result

      Result
      OK
      NG

    Result: 

    NG 

    See step  24

    Result: 

    OK 

    See step  18

  18. CHECK VEHICLE TYPE 
    1. Check vehicle type.

      Result

      Result Proceed to
      w/ Smart Key System A
      w/o Smart Key System B

    Result: 

    B 

    See step  20

    Result: 

    A 

    See step  19

  19. CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 17 CAN JUNCTION CONNECTOR - CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1115443Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 17 CAN Junction Connector)      		 *b to Certification ECU (Smart Key ECU Assembly)

      Standard Resistance

      Tester Connection Condition Specified Condition
      I216-1 (CANH) - I26-16 (BAT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher
      I216-5 (CANL) - I26-16 (BAT)

      Result

      Result
      OK
      NG

    Result: 

    NG 

    See step  22

    Result: 

    OK 

    See step  20

  20. CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 17 CAN JUNCTION CONNECTOR - AIR CONDITIONING AMPLIFIER ASSEMBLY) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1115484Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 17 CAN Junction Connector)      		 *b to Air Conditioning Amplifier Assembly

      Standard Resistance

      Tester Connection Condition Specified Condition
      I216-2 (CANH) - I26-16 (BAT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher
      I216-6 (CANL) - I26-16 (BAT)

      Result

      Result
      OK
      NG

    Result: 

    OK 

    REPLACE NO. 17 CAN JUNCTION CONNECTOR 

    Result: 

    NG 

    See step  23

  21. CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 17 CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) 
    1. Disconnect the I173 central gateway ECU (network gateway ECU) connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1115439Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 17 CAN Junction Connector)      		 *b to Central Gateway ECU (Network Gateway ECU)

      Standard Resistance

      Tester Connection Condition Specified Condition
      I216-3 (CANH) - I26-16 (BAT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher
      I216-7 (CANL) - I26-16 (BAT)

      Result

      Result
      OK
      NG

    Result: 

    OK 

    REPLACE CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU) 

    Refer to REMOVAL [09/2022 - 11/2022] , or refer to REMOVAL [11/2022 - 09/2024]

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (NO. 17 CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) 

  22. CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 17 CAN JUNCTION CONNECTOR - CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)) 
    1. Disconnect the I167 certification ECU (smart key ECU assembly) connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1115443Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 17 CAN Junction Connector)      		 *b to Certification ECU (Smart Key ECU Assembly)

      Standard Resistance

      Tester Connection Condition Specified Condition
      I216-1 (CANH) - I26-16 (BAT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher
      I216-5 (CANL) - I26-16 (BAT)

      Result

      Result
      OK
      NG

    Result: 

    OK 

    REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) 

    Refer to REMOVAL [09/2022 - 11/2022] , or refer to REMOVAL [11/2022 - 09/2024]

    Result: 

    NG 

    REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (NO. 17 CAN JUNCTION CONNECTOR - CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)) 

  23. CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 17 CAN JUNCTION CONNECTOR - AIR CONDITIONING AMPLIFIER ASSEMBLY) 
    1. Disconnect the I49 air conditioning amplifier assembly connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1115484Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 17 CAN Junction Connector)      		 *b to Air Conditioning Amplifier Assembly

      Standard Resistance

      Tester Connection Condition Specified Condition
      I216-2 (CANH) - I26-16 (BAT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher
      I216-6 (CANL) - I26-16 (BAT)

      Result

      Result
      OK
      NG

    Result: 

    OK 

    REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY 

    Refer to REMOVAL [09/2022 - 11/2022] , or refer to REMOVAL [11/2022 - ]

    Result: 

    NG 

    REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (NO. 17 CAN JUNCTION CONNECTOR - AIR CONDITIONING AMPLIFIER ASSEMBLY) 

  24. CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 12 CAN JUNCTION CONNECTOR - NO. 17 CAN JUNCTION CONNECTOR) 
    1. Disconnect the A148 No. 12 CAN junction connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1115483Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 12 CAN Junction Connector)      		 *b to No. 17 CAN Junction Connector

      Standard Resistance

      Tester Connection Condition Specified Condition
      A148-2 (CANH) - I26-16 (BAT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher
      A148-6 (CANL) - I26-16 (BAT)

      Result

      Result
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (NO. 12 CAN JUNCTION CONNECTOR - NO. 17 CAN JUNCTION CONNECTOR) 

    Result: 

    OK 

    See step  25

  25. CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 12 CAN JUNCTION CONNECTOR - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1115482Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 12 CAN Junction Connector)      		 *b to Main Body ECU (Multiplex Network Body ECU)

      Standard Resistance

      Tester Connection Condition Specified Condition
      A148-1 (CANH) - I26-16 (BAT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher
      A148-5 (CANL) - I26-16 (BAT)

      Result

      Result
      OK
      NG

    Result: 

    OK 

    REPLACE NO. 12 CAN JUNCTION CONNECTOR 

    Result: 

    NG 

    See step  26

  26. CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 12 CAN JUNCTION CONNECTOR - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)) 
    1. Disconnect the I85 main body ECU (multiplex network body ECU) connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1115482Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 12 CAN Junction Connector)      		 *b to Main Body ECU (Multiplex Network Body ECU)

      Standard Resistance

      Tester Connection Condition Specified Condition
      A148-1 (CANH) - I26-16 (BAT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher
      A148-5 (CANL) - I26-16 (BAT)

      Result

      Result
      OK
      NG

    Result: 

    OK 

    REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) 

    Refer to REMOVAL [09/2022 - 11/2022] , or refer to REMOVAL [11/2022 - 09/2024]

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (NO. 12 CAN JUNCTION CONNECTOR - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)) 

  27. CHECK FOR SHORT IN CAN BUS LINES (NO. 17 CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) 
    1. Disconnect the I216 No. 17 CAN junction connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1119266Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to No. 17 CAN Junction Connector)      		 *b to Central Gateway ECU (Network Gateway ECU)

      Standard Resistance

      Tester Connection Condition Specified Condition
      I216-3 (CANH) - I216-7 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 108 to 132 Ω

      Result

      Result
      OK
      NG

    Result: 

    NG 

    See step  32

    Result: 

    OK 

    See step  28

  28. CHECK FOR SHORT IN CAN BUS LINES (NO. 17 CAN JUNCTION CONNECTOR - NO. 12 CAN JUNCTION CONNECTOR) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1116978Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to No. 17 CAN Junction Connector)      		 *b to No. 12 CAN Junction Connector

      Standard Resistance

      Tester Connection Condition Specified Condition
      I216-4 (CANH) - I216-8 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 108 to 132 Ω

      Result

      Result
      OK
      NG

    Result: 

    NG 

    See step  35

    Result: 

    OK 

    See step  29

  29. CHECK VEHICLE TYPE 
    1. Check vehicle type.

      Result

      Result Proceed to
      w/ Smart Key System A
      w/o Smart Key System B

    Result: 

    B 

    See step  31

    Result: 

    A 

    See step  30

  30. CHECK FOR SHORT IN CAN BUS LINES (NO. 17 CAN JUNCTION CONNECTOR - CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1116980Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to No. 17 CAN Junction Connector)      		 *b to Certification ECU (Smart Key ECU Assembly)

      Standard Resistance

      Tester Connection Condition Specified Condition
      I216-1 (CANH) - I216-5 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher

      Result

      Result
      OK
      NG

    Result: 

    NG 

    See step  33

    Result: 

    OK 

    See step  31

  31. CHECK FOR SHORT IN CAN BUS LINES (NO. 17 CAN JUNCTION CONNECTOR - AIR CONDITIONING AMPLIFIER ASSEMBLY) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1116979Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to No. 17 CAN Junction Connector)      		 *b to Air Conditioning Amplifier Assembly

      Standard Resistance

      Tester Connection Condition Specified Condition
      I216-2 (CANH) - I216-6 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher

      Result

      Result
      OK
      NG

    Result: 

    OK 

    REPLACE NO. 17 CAN JUNCTION CONNECTOR 

    Result: 

    NG 

    See step  34

  32. CHECK FOR SHORT IN CAN BUS LINES (NO. 17 CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) 
    1. Disconnect the I173 central gateway ECU (network gateway ECU) connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1119266Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to No. 17 CAN Junction Connector)      		 *b to Central Gateway ECU (Network Gateway ECU)

      Standard Resistance

      Tester Connection Condition Specified Condition
      I216-3 (CANH) - I216-7 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 1 MΩ or higher

      Result

      Result
      OK
      NG

    Result: 

    OK 

    REPLACE CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU) 

    Refer to REMOVAL [09/2022 - 11/2022] , or refer to REMOVAL [11/2022 - 09/2024]

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN BUS LINES OR CONNECTOR (NO. 17 CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) 

  33. CHECK FOR SHORT IN CAN BUS LINES (NO. 17 CAN JUNCTION CONNECTOR - CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)) 
    1. Disconnect the I167 certification ECU (smart key ECU assembly) connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1116980Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to No. 17 CAN Junction Connector)      		 *b to Certification ECU (Smart Key ECU Assembly)

      Standard Resistance

      Tester Connection Condition Specified Condition
      I216-1 (CANH) - I216-5 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 1 MΩ or higher

      Result

      Result
      OK
      NG

    Result: 

    OK 

    REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) 

    Refer to REMOVAL [09/2022 - 11/2022] , or refer to REMOVAL [11/2022 - 09/2024]

    Result: 

    NG 

    REPAIR OR REPLACE CAN BRANCH LINES OR CONNECTOR (NO. 17 CAN JUNCTION CONNECTOR - CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)) 

  34. CHECK FOR SHORT IN CAN BUS LINES (NO. 17 CAN JUNCTION CONNECTOR - AIR CONDITIONING AMPLIFIER ASSEMBLY) 
    1. Disconnect the I49 air conditioning amplifier assembly connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1116979Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to No. 17 CAN Junction Connector)      		 *b to Air Conditioning Amplifier Assembly

      Standard Resistance

      Tester Connection Condition Specified Condition
      I216-2 (CANH) - I216-6 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 1 MΩ or higher

      Result

      Result
      OK
      NG

    Result: 

    OK 

    REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY 

    Refer to REMOVAL [09/2022 - 11/2022] , or refer to REMOVAL [11/2022 - ]

    Result: 

    NG 

    REPAIR OR REPLACE CAN BRANCH LINES OR CONNECTOR (NO. 17 CAN JUNCTION CONNECTOR - AIR CONDITIONING AMPLIFIER ASSEMBLY) 

  35. CHECK FOR SHORT IN CAN BUS LINES (NO. 12 CAN JUNCTION CONNECTOR - NO. 17 CAN JUNCTION CONNECTOR) 
    1. Reconnect the I216 No. 17 CAN junction connector.
    2. Disconnect the A148 No. 12 CAN junction connector.
    3. Measure the resistance according to the value(s) in the table below.
      GTY1116961Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to No. 12 CAN Junction Connector)      		 *b to No. 17 CAN Junction Connector

      Standard Resistance

      Tester Connection Condition Specified Condition
      A148-2 (CANH) - A148-6 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 108 to 132 Ω

      Result

      Result
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN BUS LINES OR CONNECTOR (NO. 12 CAN JUNCTION CONNECTOR - NO. 17 CAN JUNCTION CONNECTOR) 

    Result: 

    OK 

    See step  36

  36. CHECK FOR SHORT IN CAN BUS LINES (NO. 12 CAN JUNCTION CONNECTOR - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1116963Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to No. 12 CAN Junction Connector)      		 *b to Main Body ECU (Multiplex Network Body ECU)

      Standard Resistance

      Tester Connection Condition Specified Condition
      A148-1 (CANH) - A148-5 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 108 to 132 Ω

      Result

      Result
      OK
      NG

    Result: 

    OK 

    REPLACE NO. 12 CAN JUNCTION CONNECTOR 

    Result: 

    NG 

    See step  37

  37. CHECK FOR SHORT IN CAN BUS LINES (NO. 12 CAN JUNCTION CONNECTOR - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)) 
    1. Disconnect the I85 main body ECU (multiplex network body ECU) connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1116963Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to No. 12 CAN Junction Connector)      		 *b to Main Body ECU (Multiplex Network Body ECU)

      Standard Resistance

      Tester Connection Condition Specified Condition
      A148-1 (CANH) - A148-5 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 1 MΩ or higher

      Result

      Result
      OK
      NG

    Result: 

    OK 

    REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) 

    Refer to REMOVAL [09/2022 - 11/2022] , or refer to REMOVAL [11/2022 - 09/2024]

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN BUS LINES OR CONNECTOR (NO. 12 CAN JUNCTION CONNECTOR - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)) 

  38. CHECK FOR OPEN IN CAN MAIN BUS LINES (CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) 
    1. Disconnect the I173 central gateway ECU (network gateway ECU) connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1115370Courtesy 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
      I173-7 (CA5H) - I173-8 (CA5L) Cable disconnected from negative (-) auxiliary battery terminal 108 to 132 Ω

      Result

      Result
      OK
      NG

    Result: 

    OK 

    REPLACE CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU) 

    Refer to REMOVAL [09/2022 - 11/2022] , or refer to REMOVAL [11/2022 - 09/2024]

    Result: 

    NG 

    See step  39

  39. CHECK FOR OPEN IN CAN MAIN BUS LINES (NO. 17 CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) 
    1. Reconnect the I173 central gateway ECU (network gateway ECU) connector.
    2. Disconnect the I216 No. 17 CAN junction connector.
    3. Measure the resistance according to the value(s) in the table below.
      GTY1119266Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to No. 17 CAN Junction Connector)      		 *b to Central Gateway ECU (Network Gateway ECU)

      Standard Resistance

      Tester Connection Condition Specified Condition
      I216-3 (CANH) - I216-7 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 108 to 132 Ω

      Result

      Result
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN BUS LINES OR CONNECTOR (NO. 17 CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) 

    Result: 

    OK 

    See step  40

  40. CHECK FOR OPEN IN CAN MAIN BUS LINES (NO. 17 CAN JUNCTION CONNECTOR - NO. 12 CAN JUNCTION CONNECTOR) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1116978Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to No. 17 CAN Junction Connector)      		 *b to No. 12 CAN Junction Connector

      Standard Resistance

      Tester Connection Condition Specified Condition
      I216-4 (CANH) - I216-8 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 108 to 132 Ω

      Result

      Result
      OK
      NG

    Result: 

    OK 

    REPLACE NO. 17 CAN JUNCTION CONNECTOR 

    Result: 

    NG 

    See step  41

  41. CHECK FOR OPEN IN CAN MAIN BUS LINES (NO. 12 CAN JUNCTION CONNECTOR - NO. 17 CAN JUNCTION CONNECTOR) 
    1. Reconnect the I216 No. 17 CAN junction connector.
    2. Disconnect the A148 No. 12 CAN junction connector.
    3. Measure the resistance according to the value(s) in the table below.
      GTY1116961Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to No. 12 CAN Junction Connector)      		 *b to No. 17 CAN Junction Connector

      Standard Resistance

      Tester Connection Condition Specified Condition
      A148-2 (CANH) - A148-6 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 108 to 132 Ω

      Result

      Result
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN BUS LINES OR CONNECTOR (NO. 12 CAN JUNCTION CONNECTOR - NO. 17 CAN JUNCTION CONNECTOR) 

    Result: 

    OK 

    See step  42

  42. CHECK FOR OPEN IN CAN MAIN BUS LINES (NO. 12 CAN JUNCTION CONNECTOR - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1116963Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to No. 12 CAN Junction Connector)      		 *b to Main Body ECU (Multiplex Network Body ECU)

      Standard Resistance

      Tester Connection Condition Specified Condition
      A148-1 (CANH) - A148-5 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 108 to 132 Ω

      Result

      Result
      OK
      NG

    Result: 

    OK 

    REPLACE NO. 12 CAN JUNCTION CONNECTOR 

    Result: 

    NG 

    See step  43

  43. CHECK FOR OPEN IN CAN MAIN BUS LINES (MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)) 
    1. Reconnect the A148 No. 12 CAN junction connector.
    2. Disconnect the I85 main body ECU (multiplex network body ECU) connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      I85-2 (CANH) - I85-1 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 108 to 132 Ω
      GTY1115843Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to Main Body ECU (Multiplex Network Body ECU))

      Result

      Result
      OK
      NG

    Result: 

    OK 

    REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) 

    Refer to REMOVAL [09/2022 - 11/2022] , or refer to REMOVAL [11/2022 - 09/2024]

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN BUS LINES OR CONNECTOR (MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) - NO. 12 CAN JUNCTION CONNECTOR) 

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