AUTOMATIC TRANSAXLE SYSTEM, Diagnostic DTC:P0705

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

DESCRIPTION

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

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory
P0705 Transmission Range Sensor Circuit Malfunction (PRNDL Input)

One of the following conditions (A) through (C) is met (2-trip detection logic)

(A) Either of the following conditions 1, 2 or 3 is met:

1. Any 2 or more signals of the following are ON simultaneously:


  • P input signal is ON.

  • R input signal is ON.

  • D input signal is ON.

2. Any 2 or more signals of the following are ON simultaneously:


  • N input signal is ON.

  • R input signal is ON.

  • D input signal is ON.

3. Any 2 or more signals of the following are ON simultaneously:


  • NSW input signal is ON.

  • R input signal is ON.

  • D input signal is ON.

(B) All switches are OFF simultaneously for P, N, NSW, R and D.

(C) When any of following conditions is met for 2.0 sec. or more in the S position:


  • P input signal is ON.

  • N input signal is ON.

  • NSW input signal is ON.

  • R input signal is ON.

  • Open or short in park/neutral position switch assembly circuit

  • Park/neutral position switch assembly

  • Transmission control switch (transmission floor shift assembly)

  • ECM

 Comes on DTC stored

MONITOR DESCRIPTION

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

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

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

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

A01QOZTE18

CAUTION / NOTICE / HINT

Note

Perform registration and/or initialization when parts related to the automatic transaxle are replaced.

Click here


  1. Tech Tips

    Using the GTS 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.

    DATA LIST

    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 GTS to the DLC3.

    4. Turn the ignition switch to ON.

    5. Turn the GTS on.

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

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


      Powertrain > Engine and ECT > Data List
      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 GTS 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

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

      • OFF: Shift lever not in D or S

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

      Powertrain > Engine and ECT > Data List
      Tester Display
      Neutral Position SW Signal
      Shift SW Status (P Range)
      Shift SW Status (R Range)
      Shift SW Status (N Range)
      Sports Mode Selection SW
      Shift SW Status (D Range)

PROCEDURE


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


    1. Disconnect the park/neutral position switch connector.

    2. A01QS2YC10
      *a

      Front view of wire harness connector

      (to Park/Neutral Position Switch Assembly)

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      B101-1 (RB) - Body ground Ignition switch ON 11 to 14 V
      B101-1 (RB) - Body ground Ignition switch off Below 1 V
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  2. CHECK HARNESS AND CONNECTOR (NSW TERMINAL VOLTAGE)


    1. Disconnect the park/neutral position switch connector.

    2. A01QS2YC11
      *a

      Front view of wire harness connector

      (to Park/Neutral Position Switch Assembly)

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      B101-4 (B) - Body ground Ignition switch ON 11 to 14 V
      B101-4 (B) - Body ground Ignition switch off Below 1 V
      Result
      Proceed to
      OK
      NG

    NG

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

    OK

  3. INSPECT PARK/NEUTRAL POSITION SWITCH ASSEMBLY


    1. Disconnect the park/neutral position switch connector.

    2. A01QRD9C16
      *a

      Component without harness connected

      (Park/Neutral Position Switch Assembly)

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

      Standard Resistance
      Tester Connection Condition Specified Condition

      • 1 (RB) - 3 (PL)

      • 4 (B) - 9 (L)

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

      • 1 (RB) - 8 (NL)

      • 4 (B) - 9 (L)

      		 Shift lever in N Below 1 Ω
      1 (RB) - 7 (DL)

      • Shift lever in D

      • Shift lever in S, "+" or "-"

      		 Below 1 Ω

      • 1 (RB) - 3 (PL)

      • 4 (B) - 9 (L)

      		 Shift lever not in P 10 kΩ or higher
      1 (RB) - 2 (RL) Shift lever not in R 10 kΩ or higher

      • 1 (RB) - 8 (NL)

      • 4 (B) - 9 (L)

      		 Shift lever not in N 10 kΩ or higher
      1 (RB) - 7 (DL)

      • Shift lever not in D

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

      		 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY Click here

    OK

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


    1. Disconnect the transmission control switch connector.

    2. A01QPYEC06
      *a

      Front view of wire harness connector

      (to Transmission Control Switch)

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      G36-4 (IG) - Body ground Ignition switch ON 11 to 14 V
      G36-4 (IG) - Body ground Ignition switch off Below 1 V
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  5. INSPECT TRANSMISSION CONTROL SWITCH (TRANSMISSION FLOOR SHIFT ASSEMBLY)


    1. Disconnect the transmission control switch connector.

    2. A01QU2MC03
      *a

      Component without harness connected

      (Transmission Control Switch)

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      4 (IG) - 5 (S) Shift lever in S, "+" or "-" Below 1 Ω
      4 (IG) - 5 (S) Shift lever not in S, "+"or "-" 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE TRANSMISSION FLOOR SHIFT ASSEMBLY Click here

    OK

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


    1. Disconnect the ECM connectors.

    2. A01QT7RC01
      *a

      Front view of wire harness connector

      (to ECM)

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      B77-70 (P) - Body ground

      • Ignition switch ON

      • Shift lever in P

      		 11 to 14 V
      B77-66 (R) - Body ground

      • Ignition switch ON

      • Shift lever in R

      		 11 to 14 V*
      B77-71 (N) - Body ground

      • Ignition switch ON

      • Shift lever in N

      		 11 to 14 V
      B77-67 (D) - Body ground

      • Ignition switch ON

      • Shift lever in D

      		 11 to 14 V
      A62-27 (S) - Body ground

      • Ignition switch ON

      • Shift lever in S, "+"or "-"

      		 11 to 14 V
      B77-70 (P) - Body ground

      • Ignition switch ON

      • Shift lever not in P

      		 Below 1 V
      B77-66 (R) - Body ground

      • Ignition switch ON

      • Shift lever not in R

      		 Below 1 V
      B77-71 (N) - Body ground

      • Ignition switch ON

      • Shift lever not in N

      		 Below 1 V
      B77-67 (D) - Body ground

      • Ignition switch ON

      • Shift lever not in D

      		 Below 1 V
      A62-27 (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.

      Result
      Proceed to
      OK
      NG

    OK

    REPLACE ECM Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

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


    1. Disconnect the B101 park/neutral position switch connector.

    2. Disconnect the B77 ECM connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      B101-4 (B) - B77-63 (NSW) Always Below 1 Ω
      B101-4 (B) - Body ground Always 10 kΩ or higher
      B77-63 (NSW) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE ECM Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR