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Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Engine Control System (2GR-FKS) - Diagnostic Codes (5 Of 6) >> SFI System >> DTC P0705-13: Transmission Range Sensor "A" Circuit Open; DTC P0705-62: Transmission Range Sensor "A" Signal Compare Failure [12/2019 - 10/2022] >> Procedure

DTC P0705-13: Transmission Range Sensor "A" Circuit Open; DTC P0705-62: Transmission Range Sensor "A" Signal Compare Failure [12/2019 - 10/2022]: Procedure

  1. READ VALUE USING GTS (NEUTRAL POSITION SW AND SHIFT SW STATUS) 
    1. According to the display on the GTS, read the Data List.

      Powertrain > Engine > Data List 

      Tester Display
      Neutral Position SW
      Shift SW Status (P Range)
      Shift SW Status (R Range)
      Shift SW Status (N Range)
      Shift SW Status (N, P Range)
      Shift SW Status (D Range)

      OK

      GTS Display Shift Lever Position Specified Condition
      Neutral Position SW P or N ON
      Except P or N OFF
      Shift SW Status (P Range) P ON
      Except P OFF
      Shift SW Status (R Range) R ON
      Except R OFF
      Shift SW Status (N Range) N ON
      Except N OFF
      Shift SW Status (N, P Range) P or N ON
      Except P or N OFF
      Shift SW Status (D Range) D or M ON
      Except D or M OFF

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  6

    Result: 

    OK 

    See step  2

  2. READ VALUE USING GTS (SHIFT SW STATUS (S RANGE)) 
    1. Read the Data List displayed on the GTS.

      Powertrain > Engine > Data List 

      Tester Display
      Shift SW Status (S Range)

      OK

      GTS Display Shift Lever Position Specified Condition
      Shift SW Status (S Range) M ON
      Except M OFF

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    CHECK FOR INTERMITTENT PROBLEMS. Refer to  CHECK FOR INTERMITTENT PROBLEMS [12/2019 - 10/2022] 

    Result: 

    NG 

    See step  3

  3. INSPECT SHIFT LOCK CONTROL UNIT ASSEMBLY (TRANSMISSION CONTROL SWITCH) 

    Result

    Proceed to
    OK
    NG

    Result: 

    NG 

    REPLACE SHIFT LOCK CONTROL UNIT ASSEMBLY (TRANSMISSION CONTROL SWITCH) 

    Result: 

    OK 

    See step  4

  4. CHECK TERMINAL VOLTAGE (POWER SOURCE OF TRANSMISSION CONTROL SWITCH) 
    GTY925746Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    *a Front view of wire harness connector
    (to Transmission Control Switch)
    1. Disconnect the transmission control switch connector.
    2. Turn the ignition switch to ON.
    3. Measure the voltage according to the value(s) in the table below.

      Standard Voltage

      Tester Connection Condition Specified Condition
      H29-4 (IG) - Body ground Ignition switch ON 11 to 14 V

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR (TRANSMISSION CONTROL SWITCH POWER SOURCE CIRCUIT) 

    Result: 

    OK 

    See step  5

  5. CHECK HARNESS AND CONNECTOR (TRANSMISSION CONTROL SWITCH - ECM) 
    1. Disconnect the transmission control switch connector.
    2. Disconnect the ECM connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      H29-5 (S) - A28-17 (S) Always Below 1 Ω
      H29-5 (S) or A28-17 (S) - Body ground and other terminals Always 10 kΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE ECM. Refer to  REMOVAL [12/2019 - 09/2020]  , or refer to  REMOVAL [09/2020 - 10/2022] 

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

  6. CHECK TERMINAL VOLTAGE (POWER SOURCE OF PARK/NEUTRAL POSITION SWITCH ASSEMBLY) 
    GTY882902Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    *a Front view of wire harness connector
    (to Park/Neutral Position Switch Assembly)
    1. Disconnect the park/neutral position switch assembly connector.
    2. Turn the ignition switch to ON.
    3. Measure the voltage according to the value(s) in the table below.

      Standard Voltage

      Tester Connection Condition Specified Condition
      C52-1 (RB) - Body ground Ignition switch ON 11 to 14 V

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR (PARK/NEUTRAL POSITION SWITCH ASSEMBLY POWER SOURCE CIRCUIT) 

    Result: 

    OK 

    See step  7

  7. INSPECT PARK/NEUTRAL POSITION SWITCH ASSEMBLY 

    Result

    Proceed to
    OK
    NG

    Result: 

    NG 

    REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY 

    Result: 

    OK 

    See step  8

  8. CHECK HARNESS AND CONNECTOR (PARK/NEUTRAL POSITION SWITCH ASSEMBLY - ECM) 
    1. Disconnect the park/neutral position switch assembly connector.
    2. Disconnect the ECM connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      C52-4 (B) - C54-106 (NSW) Always Below 1 Ω
      C52-7 (DL) - C54-139 (D) Always Below 1 Ω
      C52-8 (NL) - C54-140 (N) Always Below 1 Ω
      C52-2 (RL) - C54-107 (R) Always Below 1 Ω
      C52-3 (PL) - C54-108 (P) Always Below 1 Ω
      C52-4 (B) or C54-106 (NSW) - Body ground and other terminals Always 10 kΩ or higher
      C52-7 (DL) or C54-139 (D) - Body ground and other terminals Always 10 kΩ or higher
      C52-8 (NL) or C54-140 (N) - Body ground and other terminals Always 10 kΩ or higher
      C52-2 (RL) or C54-107 (R) - Body ground and other terminals Always 10 kΩ or higher
      C52-3 (PL) or C54-108 (P) - Body ground and other terminals Always 10 kΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE ECM. Refer to  REMOVAL [12/2019 - 09/2020]  , or refer to  REMOVAL [09/2020 - 10/2022] 

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

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