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Inspection Procedure

WARNING: This page is about a different car, the 2008 Toyota Yaris. However, it is still accessible from the selected car via links, so may be relevant.
  1. DATA LIST 

    HINT:

    Using the Data List displayed by the Techstream, you can read the values of the switches, sensors, actuators and so on without parts removal. Reading the Data List as the first step of troubleshooting is one method of shortening labor time.

    1. Turn the ignition switch off.
    2. Connect the Techstream to the DLC3.
    3. Turn the ignition switch to ON.
    4. Turn the tester on.
    5. Select the following items: Powertrain / Engine and ECT / Data List.
    6. In accordance with the display on the tester, read the Data List.
      DATA LIST REFERENCE

      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Shift SW Status (R Range) PNP (Park/Neutral Position) SW Status/ ON or OFF Shift lever position; R: ON
      Except R: OFF      		 When shift lever position displayed on Techstream differs from actual position, adjustment of PNP switch or shift cable may be incorrect.
      Shift SW Status (P Range) PNP SW Status/ ON or OFF Shift lever position; P: ON
      Except P: OFF
      Shift SW Status (N Range) PNP SW Status/ ON or OFF Shift lever position; N: ON
      Except N: OFF
      Shift SW Status (D Range) PNP SW Status/ ON or OFF Shift lever position; D or 3: ON
      Except D and 3: OFF
      Shift SW Status (3 Range) PNP SW Status/ ON or OFF Shift lever position; 3: ON
      Except 3: OFF      		 -
      Shift SW Status (2 Range) PNP SW Status/ ON or OFF Shift lever position; 2: ON
      Except 2: OFF      		 When shift lever position displayed on Techstream differs from actual position, adjustment of PNP switch or shift cable may be incorrect.
      Shift SW Status (L Range) PNP SW Status/ ON or OFF Shift lever position; L: ON
      Except L: OFF
  1. READ VALUE OF DATA LIST (PARK/NEUTRAL POSITION SWITCH) 
    1. Connect the Techstream to the DLC3.
    2. Turn the ignition switch to ON.
    3. Turn on the Techstream.
    4. Select the following items: Powertrain / Engine and ECT / Data List..
    5. In accordance with the display on the tester, read the Data List.
      DATA LIST REFERENCE

      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Shift SW Status (R Range) PNP (Park/Neutral Position) SW Status/ ON or OFF Shift lever position; R: ON
      Except R: OFF      		 When shift lever position displayed on Techstream differs from actual position, adjustment of PNP switch or shift cable may be incorrect.
      Shift SW Status (P Range) PNP SW Status/ ON or OFF Shift lever position; P: ON
      Except P: OFF
      Shift SW Status (N Range) PNP SW Status/ ON or OFF Shift lever position; N: ON
      Except N: OFF
      Shift SW Status (D Range) PNP SW Status/ ON or OFF Shift lever position; D or 3: ON
      Except D and 3: OFF
      Shift SW Status (2 Range) PNP SW Status/ ON or OFF Shift lever position; 2: ON
      Except 2: OFF
      Shift SW Status (L Range) PNP SW Status/ ON or OFF Shift lever position; L: ON
      Except L: OFF

    OK: Go to step   5

    NG: go to next step 

  2. CHECK HARNESS AND CONNECTOR (POWER SOURCE OF PARK/NEUTRAL POSITION SWITCH) 
    1. Disconnect the park/neutral position switch connector.
    2. Turn the ignition switch to ON, and measure the voltage.

      Standard voltage 

      STANDARD VOLTAGE SPECIFICATION

      Tester Connection Specified Condition
      2 (RB) - Body ground 11 to 14 V
      Fig 1: Identifying C27 Connector Terminals
      G04831031Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: go to next step 

  3. INSPECT PARK/NEUTRAL POSITION SWITCH ASSEMBLY 
    1. Disconnect the park/neutral position switch connector.
    2. Measure the resistance when the shift lever is moved to each position.

      Standard resistance 

      STANDARD RESISTANCE SPECIFICATION

      Shift Position Tester Connection Specified Condition
      P or N 4 (B) - 5 (L) Below 1 Ω
      Except P and N 4(B) - 5 (L) 10 kΩ or higher
      P 2 (RB) - 6 (PL) Below 1 Ω
      Except P 2 (RB) - 6 (PL) 10 kΩ or higher
      R 1 (RL) - 2 (RB) Below 1 Ω
      Except R 1 (RL) - 2 (RB) 10 kΩ or higher
      N 2 (RB) - 9 (NL) Below 1 Ω
      Except N 2 (RB) - 9 (NL) 10 kΩ or higher
      D or 3 2 (RB) - 7 (DL) Below 1 Ω
      Except D and 3 2 (RB) - 7 (DL) 10 kΩ or higher
      2 2 (RB) - 3 (2L) Below 1 Ω
      Except 2 2 (RB) - 3 (2L) 10 kΩ or higher
      L 2 (RB) - 8 (LL) Below 1 Ω
      Except L 2 (RB) - 8 (LL) 10 kΩ or higher
      Fig 2: Identifying Park/Neutral Position Switch Assembly
      G04831032Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY (See  ON-VEHICLE INSPECTION   ) 

    OK: go to next step 

  4. CHECK HARNESS AND CONNECTOR (PARK/NEUTRAL POSITION SWITCH - ECM) 
    1. Connect the park/neutral position switch connector.
    2. Disconnect the ECM connector.
    3. Turn the ignition switch to ON, and measure the voltage when the shift lever is moved to each position.

      Standard voltage 

      STANDARD VOLTAGE SPECIFICATION

      Shift Position Tester Connection Specified Condition
      P 73 (P) - Body ground 11 to 14 V
      Except P 73 (P) - Body ground Below 1 V
      R 53 (R) - Body ground 11 to 14 V*
      Except R 53 (R) - Body ground Below 1 V
      N 54 (N) - Body ground 11 to 14 V
      Except N 54 (N) - Body ground Below 1 V
      D or 3 56 (D) - Body ground 11 to 14 V
      Except D and 3 56 (D) - Body ground Below 1 V
      2 55 (2) - Body ground 11 to 14 V
      Except 2 55 (2) - Body ground Below 1 V
      L 74 (L) - Body ground 11 to 14 V
      Except L 74 (L) - Body ground Below 1 V
      HINT:
      *: The voltage will drop slightly due to the back up light being turned on.
      Fig 3: Identifying Harness And Connector (Park/Neutral Position Switch - ECM)
      G04831033Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: go to next step 

  5. READ VALUE OF DATA LIST (PARK/NEUTRAL POSITION SWITCH) 
    1. Connect the ECM connector.
    2. Turn the ignition switch to ON.
    3. Turn on the Techstream.
    4. Select the following items: Powertrain / Engine and ECT / Data List.
    5. In accordance with the display on the tester, read the Data List.
      DATA LIST REFERENCE

      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Shift SW Status (3 Range) PNP SW Status/ ON or OFF Shift lever position; 3: ON
      Except 3: OFF      		 -

    OK: CHECK FOR INTERMITTENT PROBLEMS (SYMPTOM SIMULATION)  (See GENERAL INFORMATION )

    NG: go to next step 

  6. CHECK HARNESS AND CONNECTOR (PARK/NEUTRAL POSITION SWITCH - SHIFT LOCK CONTROL ECU) 
    1. Disconnect the shift lock control ECU connector.
    2. turn the ignition switch to ON, and measure the voltage when the shift lever is moved to each position.

      Standard voltage 

      STANDARD VOLTAGE SPECIFICATION

      Shift Position Tester Connection Specified Condition
      D or 3 9 (NSSD) - 8 (E) 11 to 14 V
      Except D and 3 9 (NSSD) - 8 (E) Below 1 V
      Fig 4: Identifying Harness And Connector (Park/Neutral Position Switch - Shift Lock Control ECU)
      G04831034Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: go to next step 

  7. INSPECT SHIFT LOCK CONTROL ECU SUB-ASSEMBLY 
    1. Disconnect the shift lock control ECU connector.
    2. Measure the resistance when the shift lever is moved to each position.

      Standard resistance 

      STANDARD RESISTANCE SPECIFICATION

      Shift Position Tester Connection Specified Condition
      3 3 (AT3) - 9 (NSSD) Below 1 Ω
      D 3 (AT3) - 9 (NSSD) 10 kΩ or higher
      3. Fig 5: Identifying Shift Lock Control ECU Connector
      G04831035Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPLACE SHIFT LOCK CONTROL UNIT ASSEMBLY (See  REMOVAL   ) 

    OK: go to next step 

  8. CHECK HARNESS AND CONNECTOR (SHIFT LOCK CONTROL ECU - ECM) 
    1. Connect the shift lock control ECU connector.
    2. Disconnect the ECM connectors.
    3. Turn the ignition switch to ON, and measure the voltage.

      Standard voltage 

      STANDARD VOLTAGE SPECIFICATION

      Shift Position Tester Connection Specified Condition
      3 26 (ODMS) - Body ground 11 to 14 V
      Except 3 26 (ODMS) - Body ground Below 1 V
      4. Fig 6: Identifying A21 Connector Terminals
      G04831036Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: REPLACE ECM  (See REMOVAL )

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