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Home >> Toyota >> 2020 >> Highlander L, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 39 (Automatic Transmission System (UA81E / UA81F) - Diagnostic Codes (1 Of 3)) >> Automatic Transaxle System >> DTC P0705-13: Transmission Range Sensor "A" Circuit Open; DTC P0705-62: Transmission Range Sensor "A" Signal Compare Failure [10/2022 - ] >> Procedure

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

WARNING: This page is about a different car, the 2025 Toyota Highlander, 2024 Toyota Highlander, and 2023 Toyota Highlander. However, it is still accessible from the selected car via links, so may be relevant.
  1. READ VALUE USING GTS (SHIFT SW STATUS) 
    1. According to the display on the GTS, read the Data List.

      Powertrain > Transmission > Data List 

      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Shift SW Status (P Range) Park/neutral position switch status ON or OFF
      • OFF: Shift lever not in P
      • ON: Shift lever in P
      		 When the shift lever position displayed on the GTS differs from the actual position, the adjustment of the park/neutral position switch assembly or shift cable may be incorrect.
      Shift SW Status (R Range) Park/neutral position switch status ON or OFF
      • OFF: Shift lever not in R
      • ON: Shift lever in R
      		 When the shift lever position displayed on the GTS differs from the actual position, the adjustment of the park/neutral position switch assembly or shift cable may be incorrect.
      Shift SW Status (N Range) Park/neutral position switch status ON or OFF
      • OFF: Shift lever not in N
      • ON: Shift lever in N
      		 When the shift lever position displayed on the GTS differs from the actual position, the adjustment of the park/neutral position switch assembly or shift cable may be incorrect.
      Shift SW Status (N, P Range) Park/neutral position switch status ON or OFF
      • ON: Shift lever in P or N
      • OFF: Shift lever not in P or N
      		 When the shift lever position displayed on the GTS differs from the actual position, the adjustment of the park/neutral position switch assembly or shift cable may be incorrect.
      Shift SW Status (D Range) Park/neutral position switch status ON or OFF
      • OFF: Shift lever not in D
      • ON: Shift lever in D
      		 When the shift lever position displayed on the GTS differs from the actual position, the adjustment of the park/neutral position switch assembly or shift cable may be incorrect.

      Powertrain > Transmission > Data List 

      Tester Display
      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)

      Result

      Result Proceed to
      Data List values are normal A
      Data List values are not normal B

    Result: 

    B 

    See step  7

    Result: 

    A 

    See step  2

  2. READ VALUE USING GTS (SHIFT SW STATUS (S RANGE)) 
    1. According to the display on the GTS, read the Data List.

      Powertrain > Transmission > Data List 

      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Shift SW Status (S Range) Sport (M) mode select switch status ON or OFF
      • ON: Shift lever in M, "+" or "-"
      • OFF: Shift lever not in M, "+" or "-"
      		 -

      Powertrain > Transmission > Data List 

      Tester Display
      Shift SW Status (S Range)

      Result

      Result Proceed to
      Data List value is normal A
      Data List value is not normal B

    Result: 

    A 

    CHECK FOR INTERMITTENT PROBLEMS. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [12/2019 - ] 

    Result: 

    B 

    See step  3

  3. CHECK HARNESS AND CONNECTOR (SHIFT LOCK CONTROL UNIT ASSEMBLY (POWER SOURCE)) 
    1. Disconnect the H29 shift lock control unit assembly connector.
    2. 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
      H29-4 (IG) - Body ground Ignition switch off Below 1 V
    3. Connect the H29 shift lock control unit assembly connector.

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR (SHIFT LOCK CONTROL UNIT ASSEMBLY (POWER SOURCE)) 

    Result: 

    OK 

    See step  4

  4. INSPECT SHIFT LOCK CONTROL UNIT ASSEMBLY (TRANSMISSION CONTROL SWITCH) 
    1. Disconnect the H29 shift lock control unit assembly connector.
      GTY453082Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component without harness connected
      (Shift Lock Control Unit Assembly (Transmission Control Switch))
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      4 (IG) - 5 (S) Shift lever in M, "+" or "- " Below 1 Ω
      4 (IG) - 5 (S) Shift lever not in M, "+" or "-" 10 kΩ or higher
    3. Connect the H29 shift lock control unit assembly connector.

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPLACE SHIFT LOCK CONTROL UNIT ASSEMBLY. Refer to  REMOVAL [10/2022 - ] 

    Result: 

    OK 

    See step  5

  5. CHECK HARNESS AND CONNECTOR (SHIFT LOCK CONTROL UNIT ASSEMBLY - ECM) 
    1. Disconnect the H29 shift lock control unit assembly connector.
    2. Disconnect the A83 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) - A83-43 (S) Always Below 1 Ω
      H29-5 (S) or A83-43 (S) - Body ground Always 10 kΩ or higher
    4. Connect the A83 ECM connector.
    5. Connect the H29 shift lock control unit assembly connector.

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    PERFORM REGISTRATION. Refer to  REGISTRATION [10/2022 - ] 

    Result: 

    OK 

    See step  6

  6. REPLACE ECM 

    Refer to REMOVAL [10/2022 - 11/2023] , or refer to REMOVAL [11/2023 - ]

    Result

    Proceed to
    NEXT

    Result: 

    NEXT 

    PERFORM REGISTRATION. Refer to  REGISTRATION [10/2022 - ] 

  7. CHECK HARNESS AND CONNECTOR (BATTERY - PARK/NEUTRAL POSITION SWITCH ASSEMBLY) 
    1. Disconnect the C52 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
      C52-1 (RB) - Body ground Ignition switch off Below 1 V

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    OK 

    See step  8

  8. CHECK HARNESS AND CONNECTOR (OUTPUT SIGNAL) 
    1. Disconnect the C52 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
      C52-4 (B) - Body ground Ignition switch ON 11 to 14 V
      C52-4 (B) - Body ground Ignition switch off Below 1 V

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  12

    Result: 

    OK 

    See step  9

  9. INSPECT PARK/NEUTRAL POSITION SWITCH ASSEMBLY 
    1. Disconnect the C52 park/neutral position switch assembly connector.
      GTY502918Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component without harness connected
      (Park/Neutral Position Switch Assembly)
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      4 (B) - 9 (L) Shift lever in P or N Below 1 Ω
      1 (RB) - 3 (PL) Shift lever in P Below 1 Ω
      1 (RB) - 2 (RL) Shift lever in R Below 1 Ω
      1 (RB) - 8 (NL) Shift lever in N Below 1 Ω
      1 (RB) - 7 (DL) Shift lever in D, M, "+" or "-" Below 1 Ω
      4 (B) - 9 (L) Shift lever not in P or N 10 kΩ or higher
      1 (RB) - 3 (PL) Shift lever not in P 10 kΩ or higher
      1 (RB) - 2 (RL) Shift lever not in R 10 kΩ or higher
      1 (RB) - 8 (NL) Shift lever not in N 10 kΩ or higher
      1 (RB) - 7 (DL) Shift lever not in D, M, "+" or "-" 10 kΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY. Refer to  REMOVAL [10/2022 - 11/2023]  , or refer to  REMOVAL [11/2023 - ] 

    Result: 

    OK 

    See step  10

  10. CHECK HARNESS AND CONNECTOR (PARK/NEUTRAL POSITION SWITCH ASSEMBLY - ECM) 
    1. Connect the C52 park/neutral position switch assembly connector.
    2. Disconnect the A83 ECM connector.
    3. Turn the ignition switch to ON.
    4. Measure the voltage according to the value(s) in the table below.

      Standard Voltage

      Tester Connection Condition Specified Condition
      A83-42 (P) - Body ground
      • Ignition switch ON
      • Shift lever in P
      		 11 to 14 V
      A83-41 (R) - Body ground
      • Ignition switch ON
      • Shift lever in R
      		 11 to 14 V*
      A83-40 (N) - Body ground
      • Ignition switch ON
      • Shift lever in N
      		 11 to 14 V
      A83-39 (D) - Body ground
      • Ignition switch ON
      • Shift lever in D, M, "+" or "-"
      		 11 to 14 V
      A83-42 (P) - Body ground
      • Ignition switch ON
      • Shift lever not in P
      		 Below 1 V
      A83-41 (R) - Body ground
      • Ignition switch ON
      • Shift lever not in R
      		 Below 1 V
      A83-40 (N) - Body ground
      • Ignition switch ON
      • Shift lever not in N
      		 Below 1 V
      A83-39 (D) - Body ground
      • Ignition switch ON
      • Shift lever not in D, M, "+" or "-"
      		 Below 1 V

      HINT: 

      *: The voltage will drop slightly due to the illumination of the back up lights.

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR (PARK/NEUTRAL POSITION SWITCH ASSEMBLY - ECM) 

    Result: 

    OK 

    See step  11

  11. REPLACE ECM 

    Refer to REMOVAL [10/2022 - 11/2023] , or refer to REMOVAL [11/2023 - ]

    Result

    Proceed to
    NEXT

    Result: 

    NEXT 

    PERFORM REGISTRATION. Refer to  REGISTRATION [10/2022 - ] 

  12. CHECK HARNESS AND CONNECTOR (PARK/NEUTRAL POSITION SWITCH ASSEMBLY - ECM) 
    1. Disconnect the C52 park/neutral position switch assembly connector.
    2. Disconnect the A83 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) - A83-15 (NSW) Always Below 1 Ω
      C52-4 (B) or A83-15 (NSW) - Body ground and other terminals Always 10 kΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR (PARK/NEUTRAL POSITION SWITCH ASSEMBLY - ECM) 

    Result: 

    OK 

    See step  13

  13. REPLACE ECM 

    Refer to REMOVAL [10/2022 - 11/2023] , or refer to REMOVAL [11/2023 - ]

    Result

    Proceed to
    NEXT

    Result: 

    NEXT 

    PERFORM REGISTRATION. Refer to  REGISTRATION [10/2022 - ] 

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