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 (P, R, N, D, 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

A01BGI0E02

INSPECTION PROCEDURE


  1. DATA LIST

    Tech Tips

    Using the intelligent tester to read the Data List allows the values or states of switches, sensors, actuators and other items to be read without removing any parts. This non-intrusive inspection can be very useful because intermittent conditions or signals may be discovered before parts or wiring is disturbed. Reading the Data List information early in troubleshooting is one way 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. 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 / Powertrain / 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 or N: ON

      • Except P or 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 (P Range)

      PNP SW Status/

      ON or OFF

      Shift lever position is:


      • P: ON

      • Except P: OFF

      		 ↑
      Shift SW Status (R Range)

      PNP SW Status/

      ON or OFF

      Shift lever position is:


      • R: ON

      • Except R: OFF

      		 ↑
      Shift SW Status (2 Range)

      PNP SW Status/

      ON or OFF

      Shift lever position is:


      • 2: ON

      • Except 2: OFF

      		 ↑
      Shift SW Status (L Range)

      PNP SW Status/

      ON or OFF

      Shift lever position is:


      • L: ON

      • Except L: OFF

      		 ↑
      Shift SW Status (N Range)

      PNP SW Status/

      ON or OFF

      Shift lever position is:


      • N: ON

      • Except N: OFF

      		 ↑
      Shift SW Status (D Range)

      PNP SW Status/

      ON or OFF

      Shift lever position is:


      • D or 3: ON

      • Except D or 3: OFF

      		 ↑
      Shift SW Status (3 Range)

      PNP SW Status/

      ON or OFF

      Shift lever position is:


      • 3: ON

      • Except 3: OFF

      		 ↑

PROCEDURE


  1. CHECK PARK/NEUTRAL POSITION SWITCH ASSEMBLY (POWER SOURCE)


    1. A01BF2FE01
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Park/Neutral Position Switch)

      Disconnect the park/neutral position switch connector.

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      D37-2 (RB) - Body ground Ignition switch ON 11 to 14 V
      D37-2 (RB) - Body ground Ignition switch off Below 1 V

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  2. CHECK HARNESS AND CONNECTOR (NSW TERMINAL VOLTAGE)


    1. A01BF2FE03
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Park/Neutral Position Switch)

      Disconnect the park/neutral position switch connector.

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      D37-4 (B) - Body ground Ignition switch ON 11 to 14 V
      D37-4 (B) - Body ground Ignition switch off Below 1 V

    NG

    CHECK HARNESS AND CONNECTOR (PARK/NEUTRAL POSITION SWITCH - ECM) Click here

    OK

  3. INSPECT PARK/NEUTRAL POSITION SWITCH ASSEMBLY


    1. A01BGUNE54
      Text in Illustration
      *a

      Component without harness connected

      (Park/Neutral Position Switch)

      Disconnect the park/neutral position switch connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      4 (B) - 5 (L) Shift lever in P or N Below 1 Ω
      2 (RB) - 6 (PL) Shift lever in P Below 1 Ω
      2 (RB) - 1 (RL) Shift lever in R Below 1 Ω
      2 (RB) - 9 (NL) Shift lever in N Below 1 Ω
      2 (RB) - 7 (DL) Shift lever in D or 3 Below 1 Ω
      2 (RB) - 3 (2L) Shift lever in 2 Below 1 Ω
      2 (RB) - 8 (LL) Shift lever in L Below 1 Ω
      4 (B) - 5 (L) Shift lever not in P or N 10 kΩ or higher
      2 (RB) - 6 (PL) Shift lever not in P 10 kΩ or higher
      2 (RB) - 1 (RL) Shift lever not in R 10 kΩ or higher
      2 (RB) - 9 (NL) Shift lever not in N 10 kΩ or higher
      2 (RB) - 7 (DL) Shift lever not in D or 3 10 kΩ or higher
      2 (RB) - 3 (2L) Shift lever not in 2 10 kΩ or higher
      2 (RB) - 8 (LL) Shift lever not in L 10 kΩ or higher

    NG

    REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY

    OK

  4. INSPECT TRANSMISSION CONTROL SWITCH


    1. A01BEYXE01
      Text in Illustration
      *a

      Component without harness connected

      (Transmission Control Switch)

      Disconnect the transmission control switch connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      1 (NSSD) - 2 (AT3) Shift lever in 3 Below 1 Ω
      1 (NSSD) - 2 (AT3) Shift lever in D 10 kΩ or higher

    NG

    REPLACE TRANSMISSION CONTROL SWITCH (SHIFT LOCK CONTROL UNIT ASSEMBLY)

    OK

  5. CHECK HARNESS AND CONNECTOR (PARK/NEUTRAL POSITION SWITCH - TRANSMISSION CONTROL SWITCH)


    1. A01BAKHE07
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Transmission Control Switch)

      Disconnect the transmission control switch connector.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      H72-1 (NSSD) - Body ground

      • Ignition switch ON

      • Shift lever in D or 3

      		 11 to 14 V
      H72-1 (NSSD) - Body ground

      • Ignition switch ON

      • Shift lever not in D or 3

      		 Below 1 V

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  6. CHECK HARNESS AND CONNECTOR (PARK/NEUTRAL POSITION SWITCH, TRANSMISSION CONTROL SWITCH - ECM)


    1. A01BFX1E01
      Text in Illustration
      *a

      Front view of wire harness connector

      (to ECM)

      Disconnect the ECM connectors.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      D97-17 (P) - D97-105 (E1)

      • Ignition switch ON

      • Shift lever in P

      		 11 to 14 V
      D97-76 (R) - D97-105 (E1)

      • Ignition switch ON

      • Shift lever in R

      		 11 to 14 V*
      D97-99 (N) - D97-105 (E1)

      • Ignition switch ON

      • Shift lever in N

      		 11 to 14 V
      B71-47 (D) - D97-105 (E1)

      • Ignition switch ON

      • Shift lever in D or 3

      		 11 to 14 V
      D97-79 (3) - D97-105 (E1)

      • Ignition switch ON

      • Shift lever in 3

      		 11 to 14 V
      D97-78 (2) - D97-105 (E1)

      • Ignition switch ON

      • Shift lever in 2

      		 11 to 14 V
      D97-39 (L) - D97-105 (E1)

      • Ignition switch ON

      • Shift lever in L

      		 11 to 14 V
      D97-17 (P) - D97-105 (E1)

      • Ignition switch ON

      • Shift lever not in P

      		 Below 1 V
      D97-76 (R) - D97-105 (E1)

      • Ignition switch ON

      • Shift lever not in R

      		 Below 1 V
      D97-99 (N) - D97-105 (E1)

      • Ignition switch ON

      • Shift lever not in N

      		 Below 1 V
      B71-47 (D) - D97-105 (E1)

      • Ignition switch ON

      • Shift lever not in D or 3

      		 Below 1 V
      D97-79 (3) - D97-105 (E1)

      • Ignition switch ON

      • Shift lever not in 3

      		 Below 1 V
      D97-78 (2) - D97-105 (E1)

      • Ignition switch ON

      • Shift lever not in 2

      		 Below 1 V
      D97-39 (L) - D97-105 (E1)

      • Ignition switch ON

      • Shift lever not in L

      		 Below 1 V

      Tech Tips

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


    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE ECM

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


    1. Disconnect the D37 park/neutral position switch connector.

    2. Disconnect the B71 ECM connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      D37-4 (B) - B71-25 (NSW) Always Below 1 Ω
      D37-4 (B) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE ECM