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Home >> Toyota >> 2020 >> Corolla L >> Repair and Diagnosis >> External Pages >> Different car >> Section 439 (Automatic Transaxle System (K121) - Diagnostic Codes (1 Of 2)) >> K121 Continuously Variable Transaxle System >> DTC P0705-62: Transmission Range Sensor "A" Signal Compare Failure [03/2023 - ] >> Procedure

DTC P0705-62: Transmission Range Sensor "A" Signal Compare Failure [03/2023 - ]: Procedure

WARNING: This page is about a different car, the 2025 Toyota Corolla and 2024 Toyota Corolla. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK VEHICLE CONDITION 
    1. Choose the model to be inspected.

      Result

      Result Proceed to
      w/ Sequential Shift A
      w/o Sequential Shift B

    Result: 

    B 

    See step  12

    Result: 

    A 

    See step  2

  2. READ VALUE USING GTS (SHIFT LEVER POSITION SENSOR) 
    1. According to the display on the GTS, read the Data List.

      Powertrain > Engine > Data List 

      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Shift Sensor Switch DB1 Shift lever position sensor status OFF or ON
      • ON: Shift lever in D
      • OFF: Shift lever in any position other than D
      		 When the shift lever position displayed on the GTS differs from the actual position, the adjustment of the shift lever position sensor or shift cable may be incorrect.
      Shift Sensor Switch DB2 Shift lever position sensor status OFF or ON
      • ON: Shift lever in D
      • OFF: Shift lever in any position other than D
      		 When the shift lever position displayed on the GTS differs from the actual position, the adjustment of the shift lever position sensor or shift cable may be incorrect.
      Shift Sensor Switch SPN Shift lever position sensor status OFF or ON
      • ON: Shift lever in N
      • OFF: Shift lever in any position other than N
      		 When the shift lever position displayed on the GTS differs from the actual position, the adjustment of the shift lever position sensor or shift cable may be incorrect.
      Shift Sensor Switch SPR Shift lever position sensor status OFF or ON
      • ON: Shift lever in R
      • OFF: Shift lever in any position other than R
      		 When the shift lever position displayed on the GTS differs from the actual position, the adjustment of the shift lever position sensor or shift cable may be incorrect.
      Shift Sensor Switch SPP Shift lever position sensor status OFF or ON
      • ON: Shift lever in P
      • OFF: Shift lever in any position other than P
      		 When the shift lever position displayed on the GTS differs from the actual position, the adjustment of the shift lever position sensor or shift cable may be incorrect.
      Shift Sensor Switch PNB Shift lever position sensor status OFF or ON
      • ON: Shift lever in P or N
      • OFF: Shift lever in any position other than P or N
      		 When the shift lever position displayed on the GTS differs from the actual position, the adjustment of the shift lever position sensor or shift cable may be incorrect.
      Shift Sensor Switch RP Shift lever position sensor status OFF or ON
      • ON: Shift lever in P or R
      • OFF: Shift lever in any position other than P or R
      		 When the shift lever position displayed on the GTS differs from the actual position, the adjustment of the shift lever position sensor or shift cable may be incorrect.

      Powertrain > Engine > Data List 

      Tester Display
      Shift Sensor Switch DB1
      Shift Sensor Switch DB2
      Shift Sensor Switch SPN
      Shift Sensor Switch SPR
      Shift Sensor Switch SPP
      Shift Sensor Switch PNB
      Shift Sensor Switch RP

      Standard

      Data List Shift Position
      P R N D
      Shift Sensor Switch (DB1) OFF OFF OFF ON
      Shift Sensor Switch (DB2) OFF OFF OFF ON
      Shift Sensor Switch (SPN) OFF OFF ON OFF
      Shift Sensor Switch (SPR) OFF ON OFF OFF
      Shift Sensor Switch (SPP) ON OFF OFF OFF
      Shift Sensor Switch (PNB) ON OFF ON OFF
      Shift Sensor Switch (RP) ON ON OFF OFF

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  8

    Result: 

    OK 

    See step  3

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

      Powertrain > Engine > Data List 

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

      Powertrain > Engine > Data List 

      Tester Display
      Shift SW Status (S Range)

      Result

      Result Proceed to
      The value of Shift SW Status (S Range) is OFF A
      The value of Shift SW Status (S Range) is not OFF B

    Result: 

    A 

    CHECK FOR INTERMITTENT PROBLEMS 

    Refer to CHECK FOR INTERMITTENT PROBLEMS [03/2023 - ]

    Result: 

    B 

    See step  4

  4. CHECK HARNESS AND CONNECTOR (SHIFT LOCK CONTROL UNIT ASSEMBLY (POWER SOURCE)) 

    Pre-procedure1

    1. Disconnect the I16 shift lock control unit assembly connector.

      Procedure1

    2. Measure the voltage according to the value(s) in the table below.

      Standard Voltage

      Tester Connection Condition Specified Condition
      I16-4 (IG) - Body ground Ignition switch ON 11 to 14 V
      I16-4 (IG) - Body ground Ignition switch off Below 1 V

      Result

      Proceed to
      OK
      NG

      Post-procedure1

    3. Connect the I16 shift lock control unit assembly connector.

    Result: 

    NG 

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

    Result: 

    OK 

    See step  5

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

    Refer to INSPECTION [09/2022 - ]

    Result

    Proceed to
    OK
    NG

    Result: 

    NG 

    REPLACE SHIFT LOCK CONTROL UNIT ASSEMBLY 

    Refer to REMOVAL [09/2022 - ]

    Result: 

    OK 

    See step  6

  6. CHECK HARNESS AND CONNECTOR (SHIFT LOCK CONTROL UNIT ASSEMBLY - ECM) 

    Pre-procedure1

    1. Disconnect the I16 shift lock control unit assembly connector.
    2. Disconnect the A178 ECM connector.

      Procedure1

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

      Standard Resistance

      Tester Connection Condition Specified Condition
      I16-5 (S) - A178-94 (S) Always Below 1 Ω
      I16-5 (S) or A178-94 (S) - Body ground Always 10 kΩ or higher

      Result

      Proceed to
      OK
      NG

      Post-procedure1

    4. Connect the A178 ECM connector.
    5. Connect the I16 shift lock control unit assembly connector.

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR (SHIFT LOCK CONTROL UNIT ASSEMBLY - ECM) 

    Result: 

    OK 

    See step  7

  7. REPLACE ECM 

    HINT: 

    Refer to REMOVAL [03/2023 - 09/2024] , or refer to REMOVAL [09/2024 - ]

    Result

    Proceed to
    NEXT

    Result: 

    NEXT 

    PERFORM REGISTRATION AND INITIALIZATION 

    for Registration: Refer to REGISTRATION [03/2023 - ]

    for Initialization: Refer to INITIALIZATION [03/2023 - ]

  8. CHECK HARNESS AND CONNECTOR (BATTERY - SHIFT LEVER POSITION SENSOR) 

    Pre-procedure1

    1. Disconnect the C200 shift lever position sensor connector.

      Procedure1

    2. Measure the voltage according to the value(s) in the table below.

      Standard Voltage

      Tester Connection Condition Specified Condition
      C200-6 (+B) - Body ground Ignition switch ON 11 to 14 V
      C200-6 (+B) - Body ground Ignition switch off Below 1 V

      Result

      Proceed to
      OK
      NG

      Post-procedure1

    3. Connect the C200 shift lever position sensor connector.

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR (BATTERY - SHIFT LEVER POSITION SENSOR) 

    Result: 

    OK 

    See step  9

  9. INSPECT SHIFT LEVER POSITION SENSOR 

    Refer to INSPECTION [03/2023 - ]

    Result

    Proceed to
    OK
    NG

    Result: 

    NG 

    REPLACE SHIFT LEVER POSITION SENSOR 

    Refer to REMOVAL [03/2023 - ]

    Result: 

    OK 

    See step  10

  10. CHECK HARNESS AND CONNECTOR (SHIFT LEVER POSITION SENSOR - ECM) 

    Pre-procedure1

    1. Disconnect the C200 shift lever position sensor connector.
    2. Disconnect the C160 ECM connector.

      Procedure1

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

      Standard Resistance

      Tester Connection Condition Specified Condition
      C200-2 (P) - C160-119 (SPP) Always Below 1 Ω
      C200-1 (R) - C160-118 (SPR) Always Below 1 Ω
      C200-8 (N) - C160-117 (SPN) Always Below 1 Ω
      C200-3 (DB1) - C160-116 (DB1) Always Below 1 Ω
      C200-9 (DB2) - C160-115 (DB2) Always Below 1 Ω
      C200-7 (PR) - C160-114 (RP) Always Below 1 Ω
      C200-4 (PNB) - C160-113 (PNB) Always Below 1 Ω
      C200-2 (P) or C160-119 (SPP) - Body ground and other terminals Always 10 kΩ or higher
      C200-1 (R) or C160-118 (SPR) - Body ground and other terminals Always 10 kΩ or higher
      C200-8 (N) or C160-117 (SPN) - Body ground and other terminals Always 10 kΩ or higher
      C200-3 (DB1) or C160-116 (DB1) - Body ground and other terminals Always 10 kΩ or higher
      C200-9 (DB2) or C160-115 (DB2) - Body ground and other terminals Always 10 kΩ or higher
      C200-7 (PR) or C160-114 (RP) - Body ground and other terminals Always 10 kΩ or higher
      C200-4 (PNB) or C160-113 (PNB) - Body ground and other terminals Always 10 kΩ or higher

      Result

      Proceed to
      OK
      NG

      Post-procedure1

    4. Connect the C160 ECM connector.
    5. Connect the C200 shift lever position sensor connector.

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR (SHIFT LEVER POSITION SENSOR - ECM) 

    Result: 

    OK 

    See step  11

  11. REPLACE ECM 

    HINT: 

    Refer to REMOVAL [03/2023 - 09/2024] , or refer to REMOVAL [09/2024 - ]

    Result

    Proceed to
    NEXT

    Result: 

    NEXT 

    PERFORM REGISTRATION AND INITIALIZATION 

    for Registration: Refer to REGISTRATION [03/2023 - ]

    for Initialization: Refer to INITIALIZATION [03/2023 - ]

  12. READ VALUE USING GTS (SHIFT LEVER POSITION SENSOR) 
    1. According to the display on the GTS, read the Data List.

      Powertrain > Engine > Data List 

      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Shift Sensor Switch DB1 Shift lever position sensor status OFF or ON
      • ON: Shift lever in D or B
      • OFF: Shift lever in any position other than D or B
      		 When the shift lever position displayed on the GTS differs from the actual position, the adjustment of the shift lever position sensor or shift cable may be incorrect.
      Shift Sensor Switch DB2 Shift lever position sensor status OFF or ON
      • ON: Shift lever in D or B
      • OFF: Shift lever in any position other than D or B
      		 When the shift lever position displayed on the GTS differs from the actual position, the adjustment of the shift lever position sensor or shift cable may be incorrect.
      Shift Sensor Switch SPN Shift lever position sensor status OFF or ON
      • ON: Shift lever in N
      • OFF: Shift lever in any position other than N
      		 When the shift lever position displayed on the GTS differs from the actual position, the adjustment of the shift lever position sensor or shift cable may be incorrect.
      Shift Sensor Switch SPR Shift lever position sensor status OFF or ON
      • ON: Shift lever in R
      • OFF: Shift lever in any position other than R
      		 When the shift lever position displayed on the GTS differs from the actual position, the adjustment of the shift lever position sensor or shift cable may be incorrect.
      Shift Sensor Switch SPP Shift lever position sensor status OFF or ON
      • ON: Shift lever in P
      • OFF: Shift lever in any position other than P
      		 When the shift lever position displayed on the GTS differs from the actual position, the adjustment of the shift lever position sensor or shift cable may be incorrect.
      Shift Sensor Switch PNB Shift lever position sensor status OFF or ON
      • ON: Shift lever in P, N or B
      • OFF: Shift lever in any position other than P, N or B
      		 When the shift lever position displayed on the GTS differs from the actual position, the adjustment of the shift lever position sensor or shift cable may be incorrect.
      Shift Sensor Switch RP Shift lever position sensor status OFF or ON
      • ON: Shift lever in P or R
      • OFF: Shift lever in any position other than P or R
      		 When the shift lever position displayed on the GTS differs from the actual position, the adjustment of the shift lever position sensor or shift cable may be incorrect.

      Powertrain > Engine > Data List 

      Tester Display
      Shift Sensor Switch DB1
      Shift Sensor Switch DB2
      Shift Sensor Switch SPN
      Shift Sensor Switch SPR
      Shift Sensor Switch SPP
      Shift Sensor Switch PNB
      Shift Sensor Switch RP

      Standard

      Data List Shift Position
      P R N D B
      Shift Sensor Switch (DB1) OFF OFF OFF ON ON
      Shift Sensor Switch (DB2) OFF OFF OFF ON ON
      Shift Sensor Switch (SPN) OFF OFF ON OFF OFF
      Shift Sensor Switch (SPR) OFF ON OFF OFF OFF
      Shift Sensor Switch (SPP) ON OFF OFF OFF OFF
      Shift Sensor Switch (PNB) ON OFF ON OFF ON
      Shift Sensor Switch (RP) ON ON OFF OFF OFF

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    CHECK FOR INTERMITTENT PROBLEMS 

    Refer to CHECK FOR INTERMITTENT PROBLEMS [03/2023 - ]

    Result: 

    NG 

    See step  8

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