Toyota Tundra Service Manual: Transmission Range Sensor Circuit Malfunction (PRNDL Input) (P0705)

Toyota Tundra Service Manual / Engine, Hybrid System / A760e Automatic Transmission / Transaxle / Automatic Transmission System / Transmission Range Sensor Circuit Malfunction (PRNDL Input) (P0705)

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):

  • One of the following conditions is met.
    • P input signal is ON
    • N input signal is ON
    • NSW input signal is ON
  • R input signal
  • D input signal

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

  • P input signal
  • N input signal
  • NSW input signal
  • R input signal

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

  • Open or short in park/neutral position switch circuit
  • Park/neutral position switch
  • Transmission control switch (Column shift shift lever sub-assembly)*1
  • Transmission control switch (Transmission floor shift assembly)*2
  • ECM

HINT:

  • *1: for Column Shift Type
  • *2: for Floor Shift Type

MONITOR DESCRIPTION

This DTC indicates 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 the engine can be started only when the shift lever is in P or N.

The park/neutral position switch sends a signal to the ECM according to the shift lever position (P, R, N, 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 illuminate the MIL and store the DTC.

MONITOR STRATEGY

Related DTCs

P0705: Park/neutral position switch/Verify switch input

Required sensors/Components

Park/neutral position switch

Frequency of operation

Continuous

Duration

Condition (A) and (B)

2 seconds

Condition (C)

60 seconds

MIL operation

2 driving cycles

Sequence of operation

None

TYPICAL ENABLING CONDITIONS

All

The monitor will run whenever the following DTCs are not present

None

Battery voltage

8 V or more

Ignition switch

ON

Starter

OFF

TYPICAL MALFUNCTION THRESHOLDS

  • One of the following conditions is met: Condition (A), (B) or (C)

    Condition (A)

    • When 2 or more of the following signals are input at the same time

      One of the following conditions is met

      P switch

      N switch

      NSW switch

      ON

      R switch

      ON

      D switch

      ON

    Condition (B)
    • When the shift lever is in S, one of the following conditions is met

      P switch

      ON

      N switch

      ON

      NSW switch

      ON

      R switch

      ON

    Condition (C)
    • All of the following conditions are met

      P switch

      OFF

      N switch

      OFF

      NSW switch

      OFF

      R switch

      OFF

      D switch

      OFF

COMPONENT OPERATING RANGE

Park/neutral position switch

The park/neutral position switch sends only one signal to the ECM

WIRING DIAGRAM

CAUTION / NOTICE / HINT

NOTICE:

Perform the universal trip to clear permanent DTCs (See page ).

1. DATA LIST

HINT:

Using the Techstream 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.

NOTICE:

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.

(a) Warm up the engine.

(b) Turn the ignition switch off.

(c) Connect the Techstream to the DLC3.

(d) Turn the ignition switch to ON.

(e) Turn the Techstream on.

(f) Enter the following menus: Powertrain / Engine and ECT / Data List.

(g) According to the display on the Techstream, 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

  • Shift lever in P or N: ON
  • Shift lever not in P or N: OFF

When the shift lever position displayed on the Techstream 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

  • Shift lever in P: ON
  • Shift lever not in P: OFF

When the shift lever position displayed on the Techstream 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

  • Shift lever in R: ON
  • Shift lever not in R: OFF

When the shift lever position displayed on the Techstream 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

  • Shift lever in N: ON
  • Shift lever not in N: OFF

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

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

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

PROCEDURE

1.

INSPECT PARK/NEUTRAL POSITION SWITCH ASSEMBLY

(a) Disconnect the D35 park/neutral position switch connector.

(b) 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

Text in Illustration

*a

Component without harness connected

(Park/Neutral Position Switch)

NG

REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY

OK

2.

INSPECT TRANSMISSION CONTROL SWITCH

(a) for Column Shift Type:

(1) Disconnect the J25 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 S, "+" or "-"

Below 1 Ω

6 (IG) - 13 (S)

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

10 kΩ or higher

Text in Illustration

*a

Component without harness connected

(Transmission Control Switch)

(b) for Floor Shift Type:

(1) Disconnect the J24 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

Text in Illustration

*a

Component without harness connected

(Transmission Control Switch)

Result

Result

Proceed to

OK

A

NG (for Column Shift Type)

B

NG (for Floor Shift Type)

C

B

REPLACE TRANSMISSION CONTROL SWITCH (COLUMN SHIFT SHIFT LEVER SUB-ASSEMBLY)

C

REPLACE TRANSMISSION CONTROL SWITCH (TRANSMISSION FLOOR SHIFT ASSEMBLY)

A

3.

CHECK PARK/NEUTRAL POSITION SWITCH ASSEMBLY (POWER SOURCE)

(a) Disconnect the D35 park/neutral position switch connector.

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

Standard Voltage:

Tester Connection

Switch Condition

Specified Condition

D35-2 (RB) - Body ground

Ignition switch ON

11 to 14 V

D35-2 (RB) - Body ground

Ignition switch off

Below 1 V

Text in Illustration

*a

Front view of wire harness connector

(to Park/Neutral Position Switch)

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR (PARK/NEUTRAL POSITION SWITCH - IGNITION SWITCH)

OK

4.

CHECK TRANSMISSION CONTROL SWITCH (POWER SOURCE)

(a) for Column Shift Type:

(1) Disconnect the J25 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

J25-6 (IG) - Body ground

Ignition switch ON

11 to 14 V

J25-6 (IG) - Body ground

Ignition switch off

Below 1 V

Text in Illustration

*a

Front view of wire harness connector

(to Transmission Control Switch)

(b) for Floor Shift Type:

(1) Disconnect the J24 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

J24-3 (IG) - Body ground

Ignition switch ON

11 to 14 V

J24-3 (IG) - Body ground

Ignition switch off

Below 1 V

Text in Illustration

*a

Front view of wire harness connector

(to Transmission Control Switch)

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR (TRANSMISSION CONTROL SWITCH - IGNITION SWITCH)

OK

5.

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

(a) Disconnect the D74 ECM connector.

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

Standard Voltage:

Tester Connection

Condition

Specified Condition

  • D74-2 (P) - Body ground
  • D74-120 (NSW) - Body ground
  • Ignition switch ON
  • Shift lever in P

11 to 14 V

D74-26 (R) - Body ground

  • Ignition switch ON
  • Shift lever in R

11 to 14 V*

  • D74-25 (N) - Body ground
  • D74-120 (NSW) - Body ground
  • Ignition switch ON
  • Shift lever in N

11 to 14 V

D74-27 (D) - Body ground

  • Ignition switch ON
  • Shift lever in D

11 to 14 V

  • D74-2 (P) - Body ground
  • D74-120 (NSW) - Body ground
  • Ignition switch ON
  • Shift lever not in P

Below 1 V

D74-26 (R) - Body ground

  • Ignition switch ON
  • Shift lever not in R

Below 1 V

  • D74-25 (N) - Body ground
  • D74-120 (NSW) - Body ground
  • Ignition switch ON
  • Shift lever not in N

Below 1 V

D74-27 (D) - Body ground

  • Ignition switch ON
  • Shift lever not in D

Below 1 V

Text in Illustration

*a

Front view of wire harness connector

(to ECM)

HINT:

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

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

6.

CHECK HARNESS AND CONNECTOR (TRANSMISSION CONTROL SWITCH - ECM)

(a) Disconnect the A24 ECM connector.

(b) Turn the ignition switch to ON.

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

Standard Voltage:

Tester Connection

Condition

Specified Condition

A24-25 (S) - Body ground

Shift lever in S, "+" or "-"

11 to 14 V

A24-25 (S) - Body ground

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

Below 1 V

Text in Illustration

*a

Front view of wire harness connector

(to ECM)

OK

REPLACE ECM

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

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