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Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 61 (Hybrid Control System (2WD) - Diagnostic Codes (7 Of 7) & Circuit Tests) >> HYBRID CONTROL SYSTEM (for 2WD) >> Indicator Circuit [12/2019 - 11/2023] >> Procedure

Indicator Circuit [12/2019 - 11/2023]: Procedure

WARNING: This page is about a different variant/trim than selected.
  1. CHECK SHIFT POSITION INDICATOR 
    1. Turn the ignition switch to ON (ACC).
    2. Check that each shift position indicator light turns on correctly.

      Result

      Result Proceed to
      All shift position indicator lights turn on simultaneously A
      Shift position indicator lights other than corresponding one turns on B
      Corresponding shift position indicator light does not turn on C
      No shift position indicator lights turn on D
    3. Turn the ignition switch off.

    Result: 

    A 

    See step  2

    Result: 

    C 

    See step  4

    Result: 

    D 

    See step  4

    Result: 

    B 

    See step  2

  2. CHECK HARNESS AND CONNECTOR (CHECK FOR SHORT TO GROUND) 
    1. Disconnect the H67 hybrid vehicle control ECU connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      H67-19 (INDP) - Body ground and other terminals Always 10 kΩ or higher
      H67-7 (INDR) - Body ground and other terminals Always 10 kΩ or higher
      H67-21 (INDN) - Body ground and other terminals Always 10 kΩ or higher
      H67-8 (INDD) - Body ground and other terminals Always 10 kΩ or higher
      H67-20 (INDM) - Body ground and other terminals Always 10 kΩ or higher
      GTY884960Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to Hybrid Vehicle Control ECU)
    3. Reconnect the H67 hybrid vehicle control ECU connector.

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE HYBRID VEHICLE CONTROL ECU. Refer to  REMOVAL [12/2019 - 10/2022]  , or refer to  REMOVAL [10/2022 - 11/2023] 

    Result: 

    NG 

    See step  3

  3. CHECK HARNESS AND CONNECTOR (HYBRID VEHICLE CONTROL ECU - SHIFT POSITION INDICATOR) 
    1. Disconnect the H67 hybrid vehicle control ECU connector.
    2. Disconnect the P1 shift position indicator connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      H67-19 (INDP) or P1-6 (P) - Body ground and other terminals Always 10 kΩ or higher
      H67-7 (INDR) or P1-7 (R) - Body ground and other terminals Always 10 kΩ or higher
      H67-21 (INDN) or P1-8 (N) - Body ground and other terminals Always 10 kΩ or higher
      H67-8 (INDD) or P1-9 (D) - Body ground and other terminals Always 10 kΩ or higher
      H67-20 (INDM) or P1-10 (S) - Body ground and other terminals Always 10 kΩ or higher
      GTY863467Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to Hybrid Vehicle Control ECU)
      *b Front view of wire harness connector
      (to Shift Position Indicator)
    4. Reconnect the P1 shift position indicator connector.
    5. Reconnect the H67 hybrid vehicle control ECU connector.

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE SHIFT POSITION INDICATOR. Refer to  DISASSEMBLY [12/2019 - ] 

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

  4. CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT) 
    1. Disconnect the P1 shift position indicator connector.
    2. Turn the ignition switch to ON (ACC).
    3. Measure the voltage according to the value(s) in the table below.

      Standard Voltage

      Tester Connection Condition Specified Condition
      P1-5 (PWR) - Body ground Ignition switch on (ACC) 11 to 14 V
      GTY887394Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to Shift Position Indicator)
    4. Turn the ignition switch off.
    5. Reconnect the P1 shift position indicator connector.

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE POWER SOURCE CIRCUIT 

    Result: 

    OK 

    See step  5

  5. CHECK HARNESS AND CONNECTOR (POWER SOURCE TERMINAL ACCI) 
    1. Turn the ignition switch to ON (ACC).
    2. Measure the voltage according to the value(s) in the table below.
      GTY894655Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component with harness connected
      (Hybrid Vehicle Control ECU)      		 - -

      Standard Voltage

      Tester Connection Condition Specified Condition
      A32-29 (ACCI) - Body ground Ignition switch ON (ACC) 11 to 14 V
    3. Turn the ignition switch off.

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE POWER SOURCE CIRCUIT 

    Result: 

    OK 

    See step  6

  6. CHECK HARNESS AND CONNECTOR (CHECK FOR OPEN) 
    1. Disconnect the H67 hybrid vehicle control ECU connector.
    2. Turn the ignition switch to ON (ACC).
    3. Measure the voltage according to the value(s) in the table below.

      Standard Voltage

      Tester Connection Condition Specified Condition
      H67-19 (INDP) - Body ground and other terminals Ignition switch ON (ACC) 11 to 14 V
      H67-7 (INDR) - Body ground and other terminals Ignition switch ON (ACC) 11 to 14 V
      H67-21 (INDN) - Body ground and other terminals Ignition switch ON (ACC) 11 to 14 V
      H67-8 (INDD) - Body ground and other terminals Ignition switch ON (ACC) 11 to 14 V
      H67-20 (INDM) - Body ground and other terminals Ignition switch ON (ACC) 11 to 14 V
      GTY884961Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to Hybrid Vehicle Control ECU)
    4. Turn the ignition switch off.
    5. Reconnect the H67 hybrid vehicle control ECU connector.

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE HYBRID VEHICLE CONTROL ECU. Refer to  REMOVAL [12/2019 - 10/2022]  , or refer to  REMOVAL [10/2022 - 11/2023] 

    Result: 

    NG 

    See step  7

  7. CHECK HARNESS AND CONNECTOR (HYBRID VEHICLE CONTROL ECU - SHIFT POSITION INDICATOR) 
    1. Disconnect the H67 hybrid vehicle control ECU connector.
    2. Disconnect the P1 shift position indicator connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      H67-19 (INDP) - P1-6 (P) Always Below 1 Ω
      H67-7 (INDR) - P1-7 (R) Always Below 1 Ω
      H67-21 (INDN) - P1-8 (N) Always Below 1 Ω
      H67-8 (INDD) - P1-9 (D) Always Below 1 Ω
      H67-20 (INDM) - P1-10 (S) Always Below 1 Ω
      GTY863467Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to Hybrid Vehicle Control ECU)
      *b Front view of wire harness connector
      (to Shift Position Indicator)
    4. Reconnect the P1 shift position indicator connector.
    5. Reconnect the H67 hybrid vehicle control ECU connector.

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE SHIFT POSITION INDICATOR. Refer to  DISASSEMBLY [12/2019 - ] 

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

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