AUTOMATIC TRANSMISSION SYSTEM (for 1GR-FE), Diagnostic DTC:P0705

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

DESCRIPTION

The Park/Neutral Position (PNP) switch detects the shift lever position and sends signals to the ECM.

DTC Code DTC Detection Condition Trouble Area
P0705

One of the following conditions is met:

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


  • P input signal is ON

  • N input signal is ON

  • NSW input signal is ON

  • R input signal is ON

  • D input signal is ON

(B) Any of the following signals is ON for 2.0 sec. or more with the shift lever in S (2-trip detection logic):


  • P input signal is ON

  • N input signal is ON

  • NSW input signal is ON

  • R input signal is ON

(C) All switches are OFF simultaneously for P, R, N, D and NSW (2-trip detection logic).

  • Open or short in park/neutral position switch circuit

  • Transmission control switch (transmission floor shift assembly)

  • Park/neutral position switch

  • ECM

MONITOR DESCRIPTION

This DTC indicates a problem with the park/neutral position switch and wire harness in the park/neutral position switch circuit.

The park/neutral position switch detects the shift lever position (P, R, N, D or S) and sends a signal to the ECM.

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

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 illuminate the MIL and store the DTC.

WIRING DIAGRAM

A01DMR2E01

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 ON.

    5. Turn the intelligent tester on.

    6. Enter the following menus: Powertrain / Engine and ECT / Data List.

    7. According to the display on the tester, read the Data List.

      Engine and ECT
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Neutral Position SW Signal

      PNP switch status/

      ON or OFF

      • ON: Shift lever in P or N

      • OFF: Shift lever not in P or N

      		 When the shift lever position displayed on the intelligent tester differs from the actual position, adjustment of the PNP switch or shift cable maybe incorrect.
      Shift SW Status (P Range)

      PNP switch status/

      ON or OFF

      • ON: Shift lever in P

      • OFF: Shift lever not in P

      		 When the shift lever position displayed on the intelligent tester differs from the actual position, adjustment of the PNP switch or shift cable maybe incorrect.
      Shift SW Status (R Range)

      PNP switch status/

      ON or OFF

      • ON: Shift lever in R

      • OFF: Shift lever not in R

      		 When the shift lever position displayed on the intelligent tester differs from the actual position, adjustment of the PNP switch or shift cable maybe incorrect.
      Shift SW Status (N Range)

      PNP switch status/

      ON or OFF

      • ON: Shift lever in N

      • OFF: Shift lever not in N

      		 When the shift lever position displayed on the intelligent tester differs from the actual position, adjustment of the PNP switch or shift cable maybe incorrect.
      Sports Shift Up SW

      Sport shift up switch status/

      ON or OFF

      • ON: Shift lever held in "+" (up-shift)

      • OFF: Shift lever not held in "+" (up-shift)

      		 -
      Sports Shift Down SW

      Sport shift down switch status/

      ON or OFF

      • ON: Shift lever held in "-" (down-shift)

      • OFF: Shift lever not held in "-" (down-shift)

      		 -
      Sports Mode Selection SW

      Sport mode select switch status/

      ON or OFF

      • ON: Shift lever in S, "+" or "-"

      • OFF: Shift lever not in S, "+" or "-"

      		 -
      Shift SW Status (D Range)

      PNP switch status/

      ON or OFF

      • ON: Shift lever in D, S, "+" or "-"

      • OFF: Shift lever not in D, S, "+" or "-"

      		 When the shift lever position displayed on the intelligent tester differs from the actual position, adjustment of the PNP switch or shift cable maybe incorrect.

PROCEDURE


  1. CHECK HARNESS AND CONNECTOR (ECU-IG NO. 1 FUSE - PARK/NEUTRAL POSITION SWITCH)


    1. A01DLV4E29
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Park/Neutral Position Switch)

      Disconnect the C40 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
      C40-2 (RB) - Body ground Ignition switch ON 11 to 14 V
      C40-2 (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. A01DSW6E06
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Park/Neutral Position Switch)

      Disconnect the C40 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
      C40-4 (B) - Body ground Ignition switch ON 11 to 14 V
      C40-4 (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. A01DTXNE10
      Text in Illustration
      *a

      Component without harness connected

      (Park/Neutral Position Switch)

      Disconnect the C40 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

      • 2 (RB) - 6 (PL)

      • 4 (B) - 5 (L)

      		 Shift lever in P Below 1 Ω
      2 (RB) - 1 (RL) Shift lever in R Below 1 Ω

      • 2 (RB) - 9 (NL)

      • 4 (B) - 5 (L)

      		 Shift lever in N Below 1 Ω
      2 (RB) - 7 (DL) Shift lever in D, S, "+" or "-" Below 1 Ω

      • 2 (RB) - 6 (PL)

      • 4 (B) - 5 (L)

      		 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)

      • 4 (B) - 5 (L)

      		 Shift lever not in N 10 kΩ or higher
      2 (RB) - 7 (DL) Shift lever not in D, S, "+" or "-" 10 kΩ or higher

    NG

    REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY Click here

    OK

  4. CHECK HARNESS AND CONNECTOR (ECU-IG NO. 1 FUSE - TRANSMISSION CONTROL SWITCH)


    1. A01DT6DE17
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Transmission Control Switch)

      Disconnect the G47 transmission control switch connector.

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      G47-3 (IG) - Body ground Ignition switch ON 11 to 14 V
      G47-3 (IG) - Body ground Ignition switch off Below 1 V

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  5. INSPECT TRANSMISSION CONTROL SWITCH


    1. A01DLXVE14
      Text in Illustration
      *a

      Component without harness connected

      (Transmission Control Switch)

      Disconnect the G47 transmission control switch connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      3 (IG) - 7 (S) Shift lever in S, "+" or "-" Below 1 Ω
      3 (IG) - 7 (S) Shift lever not in S, "+" or "-" 10 kΩ or higher

    NG

    REPLACE TRANSMISSION CONTROL SWITCH (TRANSMISSION FLOOR SHIFT ASSEMBLY) Click here

    OK

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


    1. A01DM41E02
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to ECM)

      Disconnect the G56 and C34 ECM connectors.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      C34-35 (P) - Body ground

      • Ignition switch ON

      • Shift lever in P

      		 11 to 14 V
      C34-28 (R) - Body ground

      • Ignition switch ON

      • Shift lever in R

      		 11 to 14 V*
      C34-29 (N) - Body ground

      • Ignition switch ON

      • Shift lever in N

      		 11 to 14 V
      C34-27 (D) - Body ground

      • Ignition switch ON

      • Shift lever in D

      		 11 to 14 V
      G56-24 (S) - Body ground

      • Ignition switch ON

      • Shift lever in S, "+" or "-"

      		 11 to 14 V
      C34-35 (P) - Body ground

      • Ignition switch ON

      • Shift lever not in P

      		 Below 1 V
      C34-28 (R) - Body ground

      • Ignition switch ON

      • Shift lever not in R

      		 Below 1 V
      C34-29 (N) - Body ground

      • Ignition switch ON

      • Shift lever not in N

      		 Below 1 V
      C34-27 (D) - Body ground

      • Ignition switch ON

      • Shift lever not in D

      		 Below 1 V
      G56-24 (S) - Body ground

      • Ignition switch ON

      • Shift lever not in S, "+" or "-"

      		 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 Click here

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


    1. Disconnect the C40 park/neutral position switch connector.

    2. Disconnect the C35 ECM connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      C40-4 (B) - C35-2 (NSW) Always Below 1 Ω
      C40-4 (B) - Body ground Always 10 kΩ or higher
      C35-2 (NSW) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE ECM Click here