ECD SYSTEM, 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 Detection Drive Pattern DTC Detection Condition Trouble Area
Ignition switch ON for 60 seconds 2 or more of the P, N, NSW, R and D shift lever position signals are on simultaneously for 2 seconds (2 trip detection logic).

  • Open or short in park/neutral position switch circuit

  • Park/neutral position switch assembly

  • Transmission control switch (shift lock control unit assembly)

  • ECM
The P, N, NSW, R and D shift lever position signals are all off simultaneously for 60 seconds (2 trip detection logic).
The P, N, NSW or R shift lever position signal is on when the shift lever is in M for 2 seconds (2 trip detection logic).

MONITOR DESCRIPTION

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

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

For safety, the park/neutral position switch detects the shift lever position so that the engine can only be started 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, or receives no position signal at all.

WIRING DIAGRAM

A006UGWE04

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, the adjustment of the PNP switch or shift cable may be incorrect.
      Shift SW Status (P Range)

      PNP switch status/

      ON or OFF

      • ON: Shift lever in P

      • OFF: Shift lever not in P
      Shift SW Status (R Range)

      PNP switch status/

      ON or OFF

      • ON: Shift lever in R

      • OFF: Shift lever not in R
      Shift SW Status (N Range)

      PNP switch status/

      ON or OFF

      • ON: Shift lever in N

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

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

      		 -
      Shift SW Status (D Range)

      PNP switch status/

      ON or OFF

      • ON: Shift lever in D

      • OFF: Shift lever not in D

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

PROCEDURE


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


    1. A006X2VE03
      Text in Illustration
      *1

      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
      B14-1 (RB) - Body ground Ignition switch ON 11 to 14 V
      B14-1 (RB) - Body ground Ignition switch off Below 1 V

    3. Reconnect the park/neutral position switch connector.


    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR Click here

    OK

  2. CHECK HARNESS AND CONNECTOR (ECM OUTPUT SIGNAL)


    1. A006X2VE06
      Text in Illustration
      *1

      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
      B14-4 (B) - Body ground Ignition switch ON 11 to 14 V
      B14-4 (B) - Body ground Ignition switch off Below 1 V

    3. Reconnect the park/neutral position switch connector.


    NG

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

    OK

  3. INSPECT PARK/NEUTRAL POSITION SWITCH ASSEMBLY


    1. Inspect the park/neutral position switch assembly Click here.


    NG

    REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY Click here

    OK

  4. CHECK TRANSMISSION CONTROL SWITCH (POWER SOURCE)


    1. A006X5EE01
      Text in Illustration
      *1

      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 Switch Condition Specified Condition
      D49-6 (IG) - Body ground Ignition switch ON 11 to 14 V
      D49-6 (IG) - Body ground Ignition switch off Below 1 V

    3. Reconnect the transmission control switch connector.


    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR Click here

    OK

  5. INSPECT TRANSMISSION CONTROL SWITCH


    1. A006WR6E01
      Text in Illustration
      *1

      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
      6 (IG) - 13 (S) Shift lever in M, "+" or "-" Below 1 Ω
      6 (IG) - 13 (S) Shift lever not in M, "+" or "-" 10 kΩ or higher

    3. Reconnect the transmission control switch connector.


    NG

    REPLACE TRANSMISSION CONTROL SWITCH (SHIFT LOCK CONTROL UNIT ASSEMBLY) Click here

    OK

  6. CHECK HARNESS AND CONNECTOR (BATTERY - ECM)


    1. A006U8EE08
      Text in Illustration
      *1

      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
      B39-53 (P) - Body ground

      • Ignition switch ON

      • Shift lever in P

      		 11 to 14 V
      B39-71 (R) - Body ground

      • Ignition switch ON

      • Shift lever in R

      		 11 to 14 V*
      B39-70 (N) - Body ground

      • Ignition switch ON

      • Shift lever in N

      		 11 to 14 V
      B39-73 (D) - Body ground

      • Ignition switch ON

      • Shift lever in D

      		 11 to 14 V
      A40-9 (S) - Body ground

      • Ignition switch ON

      • Shift lever in M, "+" or "-"

      		 11 to 14 V
      B39-53 (P) - Body ground

      • Ignition switch ON

      • Shift lever not in P

      		 Below 1 V
      B39-71 (R) - Body ground

      • Ignition switch ON

      • Shift lever not in R

      		 Below 1 V
      B39-70 (N) - Body ground

      • Ignition switch ON

      • Shift lever not in N

      		 Below 1 V
      B39-73 (D) - Body ground

      • Ignition switch ON

      • Shift lever not in D

      		 Below 1 V
      A40-9 (S) - Body ground

      • Ignition switch ON

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

      		 Below 1 V

      Tech Tips

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

    3. Reconnect the ECM connectors.


    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR Click here

    OK

  7. REPLACE ECM


    1. Replace the ECM Click here.


    NEXT

    CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED Click here

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


    1. A006UR5E06
      Text in Illustration
      *1

      Front view of wire harness connector

      (to Park/Neutral Position Switch)
      *2

      Front view of wire harness connector

      (to ECM)

      Disconnect the park/neutral position switch connector.

    2. Disconnect the ECM connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      B14-4 (B) - B39-38 (NSW) Always Below 1 Ω
      B14-4 (B) - Body ground Always 10 kΩ or higher
      B39-38 (NSW) - Body ground Always 10 kΩ or higher

    4. Reconnect the park/neutral position switch connector.

    5. Reconnect the ECM connector.


    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR Click here

    OK

  9. REPLACE ECM


    1. Replace the ECM Click here.


    NEXT

    CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED Click here

  10. REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY


    1. Replace the park/neutral position switch Click here.


    NEXT

    CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED Click here

  11. REPLACE TRANSMISSION CONTROL SWITCH (SHIFT LOCK CONTROL UNIT ASSEMBLY)


    1. Replace the transmission control switch Click here.


    NEXT

    CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED Click here

  12. REPAIR OR REPLACE HARNESS OR CONNECTOR


    1. Repair or replace the harness or connector.


    NEXT

  13. CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED


    1. Connect the intelligent tester to the DLC3.

    2. Clear the DTCs Click here.

    3. Turn the ignition switch to ON for 60 seconds.

    4. Enter the following menus: Powertrain / Engine and ECT / DTC.

    5. Confirm that the pending DTC is not output again.


    NEXT

    END