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Home >> Toyota >> 2017 >> Corolla XLE >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Communication Devices >> Can Communication System - (W/O Central Gateway Ecu) - Diagnostics - Introduction (1 Of 2) (Model Code: ZRE172) >> CAN COMMUNICATION SYSTEM (W/O Central Gateway ECU) >> Terminals Of Ecu [08/2016 - 08/2017] >> Terminals Of Ecu [08/2016 - 08/2017]
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Terminals Of Ecu [08/2016 - 08/2017]

NOTE:
  • After turning the ignition switch off, waiting time may be required before disconnecting the cable from the negative (-) battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) battery terminal notices before proceeding with work.

    Refer to PRECAUTION [08/2016 - ]

  • Turn the ignition switch off before measuring the resistances between CAN main bus lines and between CAN branch lines.
  • Turn the ignition switch off before inspecting CAN bus lines for a ground short.
  • Before measuring the resistance of the CAN bus, turn the ignition switch off and leave the vehicle for 1 minute or more without operating the key or any switches, or opening or closing the doors. After that, disconnect the cable from the negative (-) battery terminal and leave the vehicle for 1 minute or more before measuring the resistance.
  • This section describes the standard values for all CAN related components.

HINT: 

  1. NO. 2 CAN JUNCTION CONNECTOR 
    1. Check the No. 2 CAN junction connector.
      1. Connection diagram
        Fig 1: No. 2 CAN Junction Connector End View
        GTY436701Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        *a Front view of wire harness connector
        (to No. 2 CAN Junction Connector)
        *b to No. 3 CAN Junction Connector
        *c to Skid Control ECU (Brake Actuator Assembly) *d to ECM
      2. Check the connection diagram of the components which are connected to the No. 2 CAN junction connector.
        Terminal No. (Symbol) Wiring Color Connected to
        A39-4 (CANH) L No. 3 CAN junction connector
        A39-15 (CANL) W
        A39-5 (CANH) V Skid control ECU (brake actuator assembly)
        A39-16 (CANL) W
        A39-6 (CANH) B ECM
        A39-17 (CANL) W
  2. NO. 3 CAN JUNCTION CONNECTOR 
    1. Check the No. 3 CAN junction connector.
      1. Connection diagram
        Fig 2: No. 3 CAN Junction Connector End View
        GTY437723Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        *a Front view of wire harness connector
        (to No. 3 CAN Junction Connector)
        *b to No. 2 CAN Junction Connector
        *c to Air Conditioning Amplifier Assembly *d to Navigation Receiver Assembly
        (for Navigation Receiver Type)
        *e to Radio and Display Receiver Assembly
        (for Radio and Display Type)
        *f to Combination Meter Assembly
        *g to Airbag Sensor Assembly *h to Certification ECU (Smart Key ECU Assembly)
        (w/ Smart Key System)
        *i to Main Body ECU (Multiplex Network Body ECU) *j to Power Steering ECU Assembly
        *k to Steering Sensor
        (w/ VSC)
        *l to DLC3
      2. Check the connection diagram of the components which are connected to the No. 3 CAN junction connector.
        Terminal No. (Symbol) Wiring Color Connected to
        E55-1 (CANH) L No. 2 CAN junction connector
        E55-12 (CANL) W
        E55-2 (CANH) Y Air conditioning amplifier assembly
        E55-13 (CANL) W
        E55-3 (CANH) G Navigation receiver assembly*1
        E55-14 (CANL) W
        E55-3 (CANH) G Radio and display receiver assembly*2
        E55-14 (CANL) W
        E55-4 (CANH) LG Combination meter assembly
        E55-15 (CANL) W
        E55-5 (CANH) V Airbag sensor assembly
        E55-16 (CANL) W
        E55-6 (CANH) P Certification ECU (smart key ECU assembly)*3
        E55-17 (CANL) W
        E55-8 (CANH) B Main body ECU (multiplex network body ECU)
        E55-19 (CANL) W
        E55-9 (CANH) GR Power steering ECU assembly
        E55-20 (CANL) W
        E55-10 (CANH) SB Steering sensor*4
        E55-21 (CANL) W
        E55-11 (CANH) R DLC3
        E55-22 (CANL) W
        • *1: for Navigation Receiver Type
        • *2: for Radio and Display Type
        • *3: w/ Smart Key System
        • *4: w/ VSC
  3. DLC3 
    1. Disconnect the cable from the negative (-) battery terminal.
    2. Measure the resistance according to the value(s) in the table below.
      Fig 3: E13 Connector End View
      GTY423325Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -

      Standard Resistance

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      E13-6 (CANH) - E13-14 (CANL) R - W HIGH-level CAN bus line - LOW-level CAN bus line Cable disconnected from negative (-) battery terminal 54 to 69 Ω
      E13-6 (CANH) - E13-4 (CG) R - W-B HIGH-level CAN bus line - Ground Cable disconnected from negative (-) battery terminal 200 Ω or higher
      E13-14 (CANL) - E13-4 (CG) W - W-B LOW-level CAN bus line - Ground Cable disconnected from negative (-) battery terminal 200 Ω or higher
      E13-6 (CANH) - E13-16 (BAT) R - G HIGH-level CAN bus line - Battery positive (+) Cable disconnected from negative (-) battery terminal 6 kΩ or higher
      E13-14 (CANL) - E13-16 (BAT) W - G LOW-level CAN bus line - Battery positive (+) Cable disconnected from negative (-) battery terminal 6 kΩ or higher
  4. ECM 
    Fig 4: ECM Connector End View
    GTY430421Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    *a Component without harness connected
    (ECM)
    - -
    1. Disconnect the cable from the negative (-) battery terminal.
    2. Disconnect the A40 and B33 ECM connectors.
      Fig 5: A40 and B33 ECM Connectors
      GTY443726Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to ECM)
      - -
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      A40-13 (CANH) - A40-26 (CANL) B - W HIGH-level CAN bus line - LOW-level CAN bus line Cable disconnected from negative (-) battery terminal 108 to 132 Ω
      A40-13 (CANH) - B33-16 (E1) B - BR HIGH-level CAN bus line - Ground Cable disconnected from negative (-) battery terminal 200 Ω or higher
      A40-26 (CANL) - B33-16 (E1) W - BR LOW-level CAN bus line - Ground Cable disconnected from negative (-) battery terminal 200 Ω or higher
      A40-13 (CANH) - A40-1 (BATT) B - B HIGH-level CAN bus line - Battery positive (+) Cable disconnected from negative (-) battery terminal 6 kΩ or higher
      A40-26 (CANL) - A40-1 (BATT) W - B LOW-level CAN bus line - Battery positive (+) Cable disconnected from negative (-) battery terminal 6 kΩ or higher
  5. COMBINATION METER ASSEMBLY 
    Fig 6: Combination Meter Assembly Connector End View
    GTY451606Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    *a Component without harness connected
    (Combination Meter Assembly)
    - -
    1. Disconnect the cable from the negative (-) battery terminal.
    2. Disconnect the E43 combination meter assembly connector.
      Fig 7: Combination Meter Assembly Connector End View E43 (Front View)
      GTY425957Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to Combination Meter Assembly)
      - -
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      E43-32 (CANH) - E43-31 (CANL) LG - W HIGH-level CAN bus line - LOW-level CAN bus line Cable disconnected from negative (-) battery terminal 108 to 132 Ω
      E43-32 (CANH) - E43-21 (ET) LG - BR HIGH-level CAN bus line - Ground Cable disconnected from negative (-) battery terminal 200 Ω or higher
      E43-31 (CANL) - E43-21 (ET) W - BR LOW-level CAN bus line - Ground Cable disconnected from negative (-) battery terminal 200 Ω or higher
      E43-32 (CANH) - E43-40 (B) LG - W HIGH-level CAN bus line - Battery positive (+) Cable disconnected from negative (-) battery terminal 6 kΩ or higher
      E43-31 (CANL) - E43-40 (B) W - W LOW-level CAN bus line - Battery positive (+) Cable disconnected from negative (-) battery terminal 6 kΩ or higher
  6. DRIVER SIDE JUNCTION BLOCK ASSEMBLY AND MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) 
    Fig 8: Driver Side Junction Block Assembly And Main Body ECU Connector End View
    GTY423704Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    *1 Main Body ECU (Multiplex Network Body ECU) with 1 Connector - -
    *a Component without harness connected
    (Driver Side Junction Block Assembly and Main Body ECU (Multiplex Network Body ECU))
    *b 1 connector
    Fig 9: Driver Side Junction Block Assembly and Main Body ECU Connector End View
    GTY439103Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    *1 Main Body ECU (Multiplex Network Body ECU) with 2 Connectors - -
    *a Component without harness connected
    (Driver Side Junction Block Assembly and Main Body ECU (Multiplex Network Body ECU))
    *b 2 Connectors
    1. Disconnect the cable from the negative (-) battery terminal.
    2. Disconnect the E31 main body ECU (multiplex network body ECU) connector.
      Fig 10: Main Body ECU (Multiplex Network Body ECU) Connector End View E31 (Front View) & DLC3 Connector End View E13
      GTY428945Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to Main Body ECU (Multiplex Network Body ECU))
      - -
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      E31-14 (CANH) - E31-13 (CANL) B - W HIGH-level CAN bus line - LOW-level CAN bus line Cable disconnected from negative (-) battery terminal 54 to 69 Ω
      E31-14 (CANH) - E13-4 (CG) B - W-B HIGH-level CAN bus line - Ground Cable disconnected from negative (-) battery terminal 200 Ω or higher
      E31-13 (CANL) - E13-4 (CG) W - W-B LOW-level CAN bus line - Ground Cable disconnected from negative (-) battery terminal 200 Ω or higher
      E31-14 (CANH) - E13-16 (BAT) B - G HIGH-level CAN bus line - Battery positive (+) Cable disconnected from negative (-) battery terminal 6 kΩ or higher
      E31-13 (CANL) - E13-16 (BAT) W - G LOW-level CAN bus line - Battery positive (+) Cable disconnected from negative (-) battery terminal 6 kΩ or higher
  7. SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY) (w/o VSC) 
    Fig 11: Skid Control ECU (Brake Actuator Assembly) (w/o VSC) Connector End View A42
    GTY432795Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    *a Component without harness connected
    (Skid Control ECU (Brake Actuator Assembly))
    - -
    1. Disconnect the cable from the negative (-) battery terminal.
    2. Disconnect the A42 skid control ECU (brake actuator assembly) connector.
      Fig 12: Skid Control ECU (Brake Actuator Assembly) (w/o VSC) Connector End View A42 (Front View)
      GTY450056Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to Skid Control ECU (Brake Actuator Assembly))
      - -
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      A42-25 (CANH) - A42-14 (CANL) V - W HIGH-level CAN bus line - LOW-level CAN bus line Cable disconnected from negative (-) battery terminal 54 to 69 Ω
      A42-25 (CANH) - A42-1 (GND1) V - W-B HIGH-level CAN bus line - Ground Cable disconnected from negative (-) battery terminal 200 Ω or higher
      A42-14 (CANL) - A42-1 (GND1) W - W-B LOW-level CAN bus line - Ground Cable disconnected from negative (-) battery terminal 200 Ω or higher
      A42-25 (CANH) - A42-12 (+BS) V - W HIGH-level CAN bus line - Battery positive (+) Cable disconnected from negative (-) battery terminal 6 kΩ or higher
      A42-14 (CANL) - A42-12 (+BS) W - W LOW-level CAN bus line - Battery positive (+) Cable disconnected from negative (-) battery terminal 6 kΩ or higher
  8. SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY) (w/ VSC) 
    Fig 13: Skid Control ECU (Brake Actuator Assembly) (W/ VSC) Connector End View A43
    GTY589333Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    *a Component without harness connected
    (Skid Control ECU (Brake Actuator Assembly))
    - -
    1. Disconnect the cable from the negative (-) battery terminal.
    2. Disconnect the A43 skid control ECU (brake actuator assembly) connector.
      Fig 14: Skid Control ECU (Brake Actuator Assembly) (W/ VSC) Connector End View A43 (Front View)
      GTY594242Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to Skid Control ECU (Brake Actuator Assembly))
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      A43-22 (CANH) - A43-10 (CANL) V - W HIGH-level CAN bus line - LOW-level CAN bus line Cable disconnected from negative (-) battery terminal 54 to 69 Ω
      A43-22 (CANH) - A43-25 (GND1) V - W-B HIGH-level CAN bus line - Ground Cable disconnected from negative (-) battery terminal 200 Ω or higher
      A43-10 (CANL) - A43-25 (GND1) W - W-B LOW-level CAN bus line - Ground Cable disconnected from negative (-) battery terminal 200 Ω or higher
      A43-22 (CANH) - A43-38 (+BS) V - W HIGH-level CAN bus line - Battery positive (+) Cable disconnected from negative (-) battery terminal 6 kΩ or higher
      A43-10 (CANL) - A43-38 (+BS) W - W LOW-level CAN bus line - Battery positive (+) Cable disconnected from negative (-) battery terminal 6 kΩ or higher
  9. STEERING SENSOR (w/ VSC) 
    Fig 15: Steering Sensor
    GTY430558Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    *a Component without harness connected
    (Steering Sensor)
    - -
    1. Disconnect the cable from the negative (-) battery terminal.
    2. Disconnect the E50 steering sensor connector.
      Fig 16: E50 Steering Sensor Connector End View
      GTY446714Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to Steering Sensor)
      - -
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      E50-3 (CANH) - E50-2 (CANL) SB - W HIGH-level CAN bus line - LOW-level CAN bus line Cable disconnected from negative (-) battery terminal 54 to 69 Ω
      E50-3 (CANH) - E50-1 (ESS) SB - BR HIGH-level CAN bus line - Ground Cable disconnected from negative (-) battery terminal 200 Ω or higher
      E50-2 (CANL) - E50-1 (ESS) W - BR LOW-level CAN bus line - Ground Cable disconnected from negative (-) battery terminal 200 Ω or higher
      E50-3 (CANH) - E50-5 (BAT) SB - GR HIGH-level CAN bus line - Battery positive (+) Cable disconnected from negative (-) battery terminal 6 kΩ or higher
      E50-2 (CANL) - E50-5 (BAT) W - GR LOW-level CAN bus line - Battery positive (+) Cable disconnected from negative (-) battery terminal 6 kΩ or higher
  10. POWER STEERING ECU ASSEMBLY 
    Fig 17: Power Steering ECU Assembly Connector End Views
    GTY480373Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    *a Component without harness connected
    (Power Steering ECU Assembly)
    - -
    1. Disconnect the cable from the negative (-) battery terminal.
    2. Disconnect the A25 and E40 power steering ECU assembly connectors.
      Fig 18: A25 and E40 Power Steering ECU Assembly Connector End View
      GTY450776Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to Power Steering ECU Assembly)
      - -
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      E40-7 (CANH) - E40-8 (CANL) GR - W HIGH-level CAN bus line - LOW-level CAN bus line Cable disconnected from negative (-) battery terminal 54 to 69 Ω
      E40-7 (CANH) - A25-2 (PGND) GR - W-B HIGH-level CAN bus line - Ground Cable disconnected from negative (-) battery terminal 200 Ω or higher
      E40-8 (CANL) - A25-2 (PGND) W - W-B LOW-level CAN bus line - Ground Cable disconnected from negative (-) battery terminal 200 Ω or higher
      E40-7 (CANH) - A25-1 (PIG) GR - L HIGH-level CAN bus line - Battery positive (+) Cable disconnected from negative (-) battery terminal 6 kΩ or higher
      E40-8 (CANL) - A25-1 (PIG) W - L LOW-level CAN bus line - Battery positive (+) Cable disconnected from negative (-) battery terminal 6 kΩ or higher
  11. AIRBAG SENSOR ASSEMBLY 
    Fig 19: Airbag Sensor Assembly Connector End View
    GTY451545Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    *a Component without harness connected
    (Airbag Sensor Assembly)
    - -
    1. Disconnect the cable from the negative (-) battery terminal.
    2. Disconnect the E14 airbag sensor assembly connector.
      Fig 20: E14 Airbag Sensor Assembly Connector End View
      GTY451228Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to Airbag Sensor Assembly)
      - -
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      E14-13 (CANH) - E14-22 (CANL) V - W HIGH-level CAN bus line - LOW-level CAN bus line Cable disconnected from negative (-) battery terminal 54 to 69 Ω
      E14-13 (CANH) - E14-25 (E1) V - W-B HIGH-level CAN bus line - Ground Cable disconnected from negative (-) battery terminal 200 Ω or higher
      E14-22 (CANL) - E14-25 (E1) W - W-B LOW-level CAN bus line - Ground Cable disconnected from negative (-) battery terminal 200 Ω or higher
      E14-13 (CANH) - E13-16 (BAT) V - G HIGH-level CAN bus line - Battery positive (+) Cable disconnected from negative (-) battery terminal 6 kΩ or higher
      E14-22 (CANL) - E13-16 (BAT) W - G LOW-level CAN bus line - Battery positive (+) Cable disconnected from negative (-) battery terminal 6 kΩ or higher
  12. CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) (w/ Smart Key System) 
    Fig 21: Certification ECU (Smart Key ECU Assembly) (w/ Smart Key System) Connector End View
    GTY426748Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    *a Component without harness connected
    (Certification ECU (Smart Key ECU Assembly))
    - -
    1. Disconnect the cable from the negative (-) battery terminal.
    2. Disconnect the E57 and E59 certification ECU (smart key ECU assembly) connectors.
      Fig 22: E57 and E59 Certification ECU (Smart Key ECU Assembly) Connectors End View
      GTY424239Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to Certification ECU (Smart Key ECU Assembly))
      - -
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      E59-14 (CANH) - E59-15 (CANL) P - W HIGH-level CAN bus line - LOW-level CAN bus line Cable disconnected from negative (-) battery terminal 54 to 69 Ω
      E59-14 (CANH) - E57-11 (E) P- W-B HIGH-level CAN bus line - Ground Cable disconnected from negative (-) battery terminal 200 Ω or higher
      E59-15 (CANL) - E57-11 (E) W - W-B LOW-level CAN bus line - Ground Cable disconnected from negative (-) battery terminal 200 Ω or higher
      E59-14 (CANH) - E57-2 (+B) P - L HIGH-level CAN bus line - Battery positive (+) Cable disconnected from negative (-) battery terminal 6 kΩ or higher
      E59-15 (CANL) - E57-2 (+B) W - L LOW-level CAN bus line - Battery positive (+) Cable disconnected from negative (-) battery terminal 6 kΩ or higher
  13. NAVIGATION RECEIVER ASSEMBLY (for Navigation Receiver Type) 
    Fig 23: Navigation Receiver Assembly (for Navigation Receiver Type) Connector End View
    GTY444702Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    *a Component without harness connected
    (Navigation Receiver Assembly)
    - -
    1. Disconnect the cable from the negative (-) battery terminal.
    2. Disconnect the E65 and E67 navigation receiver assembly connectors.
      Fig 24: E65 and E67 Navigation Receiver Assembly Connector End View
      GTY443149Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to Navigation Receiver Assembly)
      - -
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      E67-9 (CANH) - E67-10 (CANL) G - W HIGH-level CAN bus line - LOW-level CAN bus line Cable disconnected from negative (-) battery terminal 54 to 69 Ω
      E67-9 (CANH) - E65-7 (GND1) G - BR HIGH-level CAN bus line - Ground Cable disconnected from negative (-) battery terminal 200 Ω or higher
      E67-10 (CANL) - E65-7 (GND1) W - BR LOW-level CAN bus line - Ground Cable disconnected from negative (-) battery terminal 200 Ω or higher
      E67-9 (CANH) - E65-4 (+B1) G - SB HIGH-level CAN bus line - Battery positive (+) Cable disconnected from negative (-) battery terminal 6 kΩ or higher
      E67-10 (CANL) - E65-4 (+B1) W - SB LOW-level CAN bus line - Battery positive (+) Cable disconnected from negative (-) battery terminal 6 kΩ or higher
  14. RADIO AND DISPLAY RECEIVER ASSEMBLY (for Radio and Display Type) 
    Fig 25: Radio And Display Receiver Assembly (For Radio And Display Type) Connector End Views
    GTY596309Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    *a Component without harness connected
    (Radio and Display Receiver Assembly)
    - -
    1. Disconnect the cable from the negative (-) battery terminal.
    2. Disconnect the E1 and E29 radio and display receiver assembly connectors.
      Fig 26: E1 and E29 Radio And Display Receiver Assembly Connectors End View
      GTY443144Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to Radio and Display Receiver Assembly)
      - -
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      E29-9 (CANH) - E29-10 (CANL) G - W HIGH-level CAN bus line - LOW-level CAN bus line Cable disconnected from negative (-) battery terminal 54 to 69 Ω
      E29-9 (CANH) - E1-7 (GND1) G - BR HIGH-level CAN bus line - Ground Cable disconnected from negative (-) battery terminal 200 Ω or higher
      E29-10 (CANL) - E1-7 (GND1) W - BR LOW-level CAN bus line - Ground Cable disconnected from negative (-) battery terminal 200 Ω or higher
      E29-9 (CANH) - E1-4 (+B1) G - SB HIGH-level CAN bus line - Battery positive (+) Cable disconnected from negative (-) battery terminal 6 kΩ or higher
      E29-10 (CANL) - E1-4 (+B1) W - SB LOW-level CAN bus line - Battery positive (+) Cable disconnected from negative (-) battery terminal 6 kΩ or higher
  15. AIR CONDITIONING AMPLIFIER ASSEMBLY (for Automatic Air Conditioning System) 
    Fig 27: Conditioning Amplifier Assembly (w/ Automatic Air Conditioning System) Connector End View
    GTY441167Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    *a Component without harness connected
    (Air Conditioning Amplifier Assembly)
    - -
    1. Disconnect the cable from the negative (-) battery terminal.
    2. Disconnect the E37 air conditioning amplifier assembly connector.
      Fig 28: E37 Air Conditioning Amplifier Assembly Connector
      GTY430875Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to Air Conditioning Amplifier Assembly)
      - -
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      E37-11 (CANH) - E37-12 (CANL) Y - W HIGH-level CAN bus line - LOW-level CAN bus line Cable disconnected from negative (-) battery terminal 54 to 69 Ω
      E37-11 (CANH) - E37-14 (GND) Y - BR HIGH-level CAN bus line - Ground Cable disconnected from negative (-) battery terminal 200 Ω or higher
      E37-12 (CANL) - E37-14 (GND) W - BR LOW-level CAN bus line - Ground Cable disconnected from negative (-) battery terminal 200 Ω or higher
      E37-11 (CANH) - E37-21 (B) Y - W HIGH-level CAN bus line - Battery positive (+) Cable disconnected from negative (-) battery terminal 6 kΩ or higher
      E37-12 (CANL) - E37-21 (B) W - W LOW-level CAN bus line - Battery positive (+) Cable disconnected from negative (-) battery terminal 6 kΩ or higher
  16. AIR CONDITIONING AMPLIFIER ASSEMBLY (for Manual Air Conditioning System) 
    Fig 29: Air Conditioning Amplifier Assembly (w/ Manual Air Conditioning System) Connector End View E7
    GTY451153Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    *a Component without harness connected
    (Air Conditioning Amplifier Assembly)
    - -
    1. Disconnect the cable from the negative (-) battery terminal.
    2. Fig 30: Air Conditioning Amplifier Assembly (w/ Manual Air Conditioning System) Connector End View (2 Of 2)
      GTY432787Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. *1 DLC3 - -
      *a Front view of wire harness connector
      (to Air Conditioning Amplifier Assembly)
      - -

      Disconnect the E7 air conditioning amplifier assembly connector.

    4. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      E7-8 (CANH) - E7-9 (CANL) Y - W HIGH-level CAN bus line - LOW-level CAN bus line Cable disconnected from negative (-) battery terminal 54 to 69 Ω
      E7-8 (CANH) - E7-23 (GND) Y - BR HIGH-level CAN bus line - Ground Cable disconnected from negative (-) battery terminal 200 Ω or higher
      E7-9 (CANL) - E7-23 (GND) W - BR LOW-level CAN bus line - Ground Cable disconnected from negative (-) battery terminal 200 Ω or higher
      E7-8 (CANH) - E13-16 (BAT) Y - G HIGH-level CAN bus line - Battery positive (+) Cable disconnected from negative (-) battery terminal 6 kΩ or higher
      E7-9 (CANL) - E13-16 (BAT) W - G LOW-level CAN bus line - Battery positive (+) Cable disconnected from negative (-) battery terminal 6 kΩ or higher