ELECTRONIC CONTROLLED AUTOMATIC TRANSMISSION SYSTEM, Diagnostic DTC:P0705

DTC Code DTC Name
P0705 Transmission Range Sensor Circuit Malfunction (PRNDL Input)

DESCRIPTION

The park/neutral position switch detects the shift lever position and sends signals to the ECM.

DTC No. DTC Detection Condition Trouble Area
P0705

Any 2 or more signals of the following are ON simultaneously (2-trip detection logic)


  • NSW input signal is ON.

  • R input signal is ON.

  • 3 input signal is ON.

  • 2 input signal is ON.

  • L input signal is ON.

  • Open or short in park/neutral position switch circuit

  • Park/neutral position switch

  • ECM

MONITOR DESCRIPTION

These DTCs indicate a problem with the park/neutral position switch and the wire harness in the park/neutral position switch circuit.

The park/neutral position switch detects the shift lever position and sends a signal to the ECM.

For security, the park/neutral position switch detects the shift lever position so that engine can be started only when the shift lever is in the P or N position.

The park/neutral position switch sends a signal to the ECM according to the shift position (R, 3, 2 or L).

The ECM determines that there is a problem with the switch or related parts if it receives more than 1 position signal simultaneously. The ECM will turn on the MIL and store the DTC.

WIRING DIAGRAM

A01BEP1E01
A01BBPWE01

INSPECTION PROCEDURE


  1. DATA LIST

    Tech Tips

    Using the Intelligent Tester Data List allows switch, sensor, actuator and other item values to be read without removing any parts. Reading the Data List early in troubleshooting is one way to shorten labor 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. Warm up the engine.

    2. Turn the ignition switch off.

    3. Connect the Intelligent Tester to the DLC3.

    4. Turn the ignition switch to the ON position.

    5. Turn on the tester.

    6. Select the item "Enter / Power train / Engine and ECT / Data List".

    7. Follow the instructions on the tester and read the Data List.

      Item

      Measurement Item/

      Range (display)

      		 Normal Condition Diagnostic Note
      Neutral Position SW Signal

      PNP SW Status/

      ON or OFF

      Shift lever position is;

      P and N: ON

      Except P and N: OFF

      		 When the shift lever position displayed on the Intelligent tester differs from the actual position, adjustment of the PNP switch or the shift cable may be incorrect.
      Shift SW Status (L Range)

      PNP SW Status/

      ON or OFF

      Shift lever position is;

      L: ON

      Except L: OFF

      		 ↑
      Shift SW Status (2 Range)

      PNP SW Status/

      ON or OFF

      Shift lever position is;

      2: ON

      Except 2: OFF

      		 ↑
      Shift SW Status (3 Range)

      PNP SW Status/

      ON or OFF

      Shift lever position is;

      3: ON

      Except 3: OFF

      		 ↑
      Shift SW Status (R Range)

      PNP SW Status/

      ON or OFF

      Shift lever position is;

      R: ON

      Except R: OFF

      		 ↑

PROCEDURE


  1. INSPECT PARK/NEUTRAL POSITION SWITCH ASSEMBLY


    1. A01BG1DE03

      Jack up the vehicle.

    2. Disconnect the park/neutral position switch connector.

    3. Measure the resistance according to the value(s) in the table below when the shift lever is moved to each position.

      Resistance
      Shift Position Tester Connection Specified Condition
      P 2 - 6 and 4 - 5 Below 1 Ω
      Except P ↑ 10 kΩ or higher
      R 2 - 1 Below 1 Ω
      Except R ↑ 10 kΩ or higher
      N 2 - 9 and 4 - 5 Below 1 Ω
      Except N ↑ 10 kΩ or higher
      D and 3 2 - 7 Below 1 Ω
      Except D and 3 ↑ 10 kΩ or higher
      2 2 - 3 Below 1 Ω
      Except 2 ↑ 10 kΩ or higher
      L 2 - 8 Below 1 Ω
      Except L ↑ 10 kΩ or higher

    NG

    REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY

    OK

  2. INSPECT SHIFT LOCK CONTROL UNIT ASSEMBLY


    1. A01BC3JE01

      Connect the park/neutral position switch connector.

    2. Disconnect the transmission control switch connector of shift lock control unit assembly.

    3. Measure the resistance according to the value(s) in the table below when the shift lever is moved to each position.

      Resistance
      Shift position Tester connection Specified condition
      D 9 - 2 (NSSD - ATD) Below 1 Ω
      3 10 kΩ or higher
      D 9 - 3 (NSSD - AT3) 10 kΩ or higher
      3 Below 1 Ω

    NG

    REPLACE SHIFT LOCK CONTROL UNIT ASSEMBLY

    OK

  3. CHECK HARNESS AND CONNECTOR (PARK/NEUTRAL POSITION SWITCH - ECM)


    1. A01BF8ME04

      Connect the transmission control switch connector of shift lock control unit assembly.

    2. Turn the ignition switch to the ON position, and measure the voltage according to the value(s) in the table below when the shift lever is moved to each position.

      Voltage
      Shift Position Tester connection Specified condition
      P and N B9-30 (NSW) - Body ground Below 2 V
      Except P and N ↑ 10 to 14 V

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  4. CHECK HARNESS AND CONNECTOR (PARK/NEUTRAL POSITION SWITCH - ECM)


    1. A01BG34E01

      Disconnect the ECM connector.

    2. Turn the ignition switch to the ON position, and measure the voltage according to the value(s) in the table below when the shift lever is moved to each position.

      Voltage
      Shift Position Tester connection Specified condition
      R B7-11 (R) - Body ground 10 to 14 V*
      Except R ↑ Below 1 V
      D and 3 B7-19 (3) - Body ground 10 to 14 V
      Except D and 3 ↑ Below 1 V
      2 B7-10 (2) - Body ground 10 to 14 V
      Except 2 ↑ Below 1 V
      L B7-9 (L) - Body ground 10 to 14 V
      Except L ↑ Below 1 V

      Tech Tips

      *: The voltage will drop slightly due to the turning on of the back up light.


    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE ECM