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Home >> Toyota >> 2009 >> Avalon XLS >> Repair and Diagnosis >> Engine Performance >> Engine Control System (2GR-FE) >> SFI System >> DTC P0705 Transmission Range Sensor Circuit Malfunction (PRNDL Input) >> Inspection Procedure

Inspection Procedure

HINT:

According to the Data List displayed by Techstream, you can read the value of the switch, sensor, actuator and so on without removing any parts. Reading the Data List as the first step of troubleshooting is one method to save diagnostic time.

NOTE: In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not.
  1. READ DATA LIST 
    1. Turn the ignition switch off.
    2. Connect Techstream to the DLC3.
    3. Turn the ignition switch to ON.
    4. Turn on the tester.
    5. Select the items: "Powertrain/Engine/Data List".
    6. According to the display on the tester, read the "Data List".
      DATA LIST

      Item Measurement Item/Range (Display) Normal Condition Diagnostic Note
      PNP SW [NSW] PNP SW Status/ON or OFF Shift lever position is; P and N: ON
      Except P or N: OFF      		 When the shift lever position displayed on Techstream differs from the actual position, adjustment of the PNP switch or the shift cable may be incorrect.
      REVERSE PNP SW Status/ON or OFF Shift lever position is; R: ON
      Except R: OFF      		 ↑
      DRIVE PNP SW Status/ON or OFF Shift lever position is; D and S: ON
      Except D or S: OFF      		 ↑
  1. CHECK HARNESS AND CONNECTOR (BATTERY - PARK/NEUTRAL POSITION SWITCH) 
    1. Disconnect the park/neutral position switch connector.
    2. Turn the ignition switch to ON.
    3. Measure the voltage according to the value (s) in the table below.

      Standard voltage 

      VOLTAGE SPECIFIED CONDITION

      Tester Connection Specified Condition
      1 - Body ground 10 to 14 V

      NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

      Fig 1: Identifying B13 Park/Neutral Position Switch Connector Terminals
      G05404620Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      OK: Go to Next Step 

  2. CHECK HARNESS AND CONNECTOR (PARK/NEUTRAL POSITION SWITCH - ST RELAY) 
    1. Disconnect the park/neutral position switch connector.
    2. Remove the ST relay from the engine room relay block.
    3. Measure the resistance between the terminals.

      Standard resistance 

      RESISTANCE SPECIFIED CONDITIONS

      Tester Connection Specified Condition
      L (B13-9) - ST relay terminal 1 Below 1 Ω
    4. Reconnect the park/neutral position switch connector.
    5. Install the ST relay.

      NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

      Fig 2: Identifying Park/Neutral Position Switch And ST Relay Connector Terminals
      G06227076Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      OK: Go to Next Step 

  3. INSPECT ST RELAY 
    1. Remove the ST relay from the engine room R/B.
    2. Measure the resistance between the terminals.

      Standard resistance 

      RESISTANCE SPECIFIED CONDITIONS

      Tester Connection Specified Condition
      3 - 5 10 kΩ or higher
      3 - 5 Below 1 Ω Apply battery voltage between terminals 1 and 2
    3. Install the ST relay.

      NG: REPLACE ST RELAY 

      Fig 3: ST Relay Circuit
      G04942976Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      OK: Go to Next Step 

  4. CHECK HARNESS AND CONNECTOR (ST RELAY - BODY GROUND) 
    1. Remove the ST relay from the engine room R/B.
    2. Measure the resistance between the terminals

      Standard resistance 

      RESISTANCE SPECIFIED CONDITIONS

      Tester Connection Specified Condition
      ST relay terminal 2 - Body ground Below 1 Ω
    3. Install the ST relay.

      NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

      Fig 4: Identifying ST Relay On Engine Room R/B
      G06227078Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      OK: Go to Next Step 

  5. INSPECT PARK/NEUTRAL POSITION SWITCH ASSEMBLY 
    1. Measure the resistance according to the value (s) in the table below when the shift lever is moved to each position.

      Standard resistance 

      RESISTANCE SPECIFIED CONDITIONS

      Shift Position Tester Connection Specified Condition
      P 1 - 3 and 4 - 9 Below 1 Ω
      Except P 10 kΩ or higher
      R 1 - 2 Below 1 Ω
      Except R 10 kΩ or higher
      N 1 - 8 and 4 - 9 Below 1 Ω
      Except N 10 kΩ or higher
      D, S, "+" and "-" 1 - 7 Below 1 Ω
      Except D, S, "+" and "-" 10 kΩ or higher

      NG: REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY  (See REMOVAL )

      Fig 5: Identifying B13 Park/Neutral Position Switch Connector Terminals
      G05404624Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      OK: Go to Next Step 

  6. CHECK HARNESS AND CONNECTOR 
    1. Connect the park/neutral position switch connector.
    2. Disconnect the ECM connectors.
    3. Turn the ignition switch to ON, and measure the voltage according to the value (s) in the table below when the shift lever is moved to each position.
      Fig 6: Identifying ECM Connector Terminals
      G06227080Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard voltage 

      VOLTAGE SPECIFIED CONDITION

      Shift Position Tester Connection Specified Condition
      P B50-24 (P) - Body ground 10 to 14 V
      Except P Below 1 V
      N B50-27 (N) - Body ground 10 to 14 V
      Except N Below 1 V
      R B50-25 (R) - Body ground 10 to 14 V*
      Except R Below 1 V
      D and S B50-26 (D) - Body ground 10 to 14 V
      Except D and S Below 1 V
      S, "+" and "-" A55-25 (S) - Body ground 10 to 14 V
      Except S, "+" and "-" Below 1 V
      HINT:
      *: The voltage will drop slightly due to lighting up of the back up light.

      NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

      OK: Go to Next Step 

  7. CHECK HARNESS AND CONNECTOR 
    1. Disconnect the transmission control switch connector of the shift lock control unit assembly.
    2. Turn the ignition switch to ON.
    3. Measure the voltage between the terminals.

      Standard voltage 

      VOLTAGE SPECIFIED CONDITION

      Tester Connection Specified Condition
      3 - Body ground 10 to 14 V
    4. Reconnect the transmission control switch connector.

      NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

      Fig 7: Identifying Transmission Control Switch Connector Terminals
      G05404626Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      OK: Go to Next Step 

  8. INSPECT TRANSMISSION FLOOR SHIFT ASSEMBLY (TRANSMISSION CONTROL SWITCH) 
    1. Inspect the transmission control switch (See INSTALLATION ).

      NG: REPLACE TRANSMISSION FLOOR SHIFT ASSEMBLY  (See REMOVAL )

      OK: Go to Next Step 

  9. CHECK HARNESS AND CONNECTOR 
    1. Connect the transmission control switch connector of the shift lock control unit assembly.
    2. Turn the ignition switch to ON, and measure the voltage according to the value (s) in the table below when the shift lever is moved to each position.
      Fig 8: Identifying ECM Connector Terminals
      G05404625Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard voltage 

      VOLTAGE SPECIFIED CONDITION

      Shift Position Tester Connection Specified Condition
      P B50-24 (P) - Body ground 10 to 14 V
      Except P ↑ Below 1 V
      N B50-27 (N) - Body ground 10 to 14 V
      Except N ↑ Below 1 V
      R B50-25 (R) - Body ground 10 to 14 V*
      Except R ↑ Below 1 V
      D and S B50-26 (D) - Body ground 10 to 14 V
      Except D and S ↑ Below 1 V
      S, "+" and "-" A55-25 (S) - Body ground 10 to 14 V
      Except S, "+" and "-" ↑ Below 1 V

      NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

      OK: Go to Next Step 

  10. CHECK HARNESS AND CONNECTOR (PARK/NEUTRAL POSITION SWITCH - ECM) 
    1. Disconnect the ECM connectors.
    2. Turn the ignition switch off.
    3. Measure the resistance according to the value(s) in the table below.

      Standard resistance (Check for open) 

      RESISTANCE SPECIFIED CONDITIONS

      Tester Connection Specified Condition
      B (B13-4) - NSW (B50-62) Below 1 Ω

      Standard resistance (Check for short) 

      RESISTANCE SPECIFIED CONDITIONS

      Tester Connection Specified Condition
      B (B13-4) or NSW (B50-62) - Body ground 10 kΩ or higher

      NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

      Fig 9: Identifying B13 Park/Neutral Position Switch And B50 ECM Connector Terminals
      G05404628Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      OK: REPLACE ECM (See  REMOVAL   ) 

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