Toyota Venza manuals

Toyota Venza: Transmission Range Sensor Circuit Malfunction (PRNDL Input) (P0705)

Toyota Venza Service Manual / U660e Automatic Transmission / Transaxle / Automatic Transaxle System / Transmission Range Sensor Circuit Malfunction (PRNDL Input) (P0705)

DESCRIPTION

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

DTC No.

DTC Detection Condition

Trouble Area

P0705

(A) 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.
  • D input signal is ON.

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

  • Open or short in park/neutral position switch circuit
  • Park/neutral position switch
  • TCM

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 signals to the TCM.

For safety, 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 TCM according to the shift lever position (R or D). The TCM determines that there is a problem with the switch or related parts if it receives more than 1 position signal simultaneously. The TCM will turn on 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): 2 sec.

Condition (B): 60 sec.

MIL operation

2 driving cycles

Sequence of operation

None

TYPICAL ENABLING CONDITIONS

The monitor will run whenever the following DTCs are not present

None

Ignition switch

ON

Battery voltage

10.5 V or more

Starter

OFF

TYPICAL MALFUNCTION THRESHOLDS

  • When either condition below is met: Condition (A) or (B)
    Condition (A)
    • When 2 or more of the following signals are input at the same time:

      Park neutral position switch

      ON

      R position switch

      ON

      D position switch

      ON

    Condition (B)
    • When all conditions below are met:

      Park neutral position switch

      OFF

      R position switch

      OFF

      D position switch

      OFF

COMPONENT OPERATING RANGE

Park/neutral position switch

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

WIRING DIAGRAM


CAUTION / NOTICE / HINT

NOTICE:

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


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.

  1. Warm up the engine.
  2. Turn the ignition switch off.
  3. Connect the Techstream to the DLC3.
  4. Turn the ignition switch to ON.
  5. Turn the Techstream on.
  6. Enter the following menus: Powertrain / ECT / Data List.
  7. According to the display on the Techstream, read the Data List.

    Tester Display

    Measurement Item / Range

    Normal Condition

    Diagnostic Note

    Neutral Position SW Signal

    PNP switch status / ON or OFF

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

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

    Shift SW Status (R Range)

    PNP switch status / ON or OFF

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

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

    Shift SW Status (D Range)

    PNP switch status / ON or OFF

    • ON: Shift lever is in D or S
    • OFF: Shift lever is not in D or S

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

PROCEDURE

1.

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

(a) Disconnect the park/neutral position switch 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

Switch Condition

Specified Condition

B2-1 (RB) - Body ground

Ignition switch ON

11 to 14 V

Text in Illustration

*1

Front view of wire harness connector

(to Park/Neutral Position Switch)


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR


OK

2.

CHECK HARNESS AND CONNECTOR (OUTPUT SIGNAL)

(a) Turn the ignition switch to ON.


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

Standard Voltage:

Tester Connection

Switch Condition

Specified Condition

B2-4 (B) - Body ground

Ignition switch ON

11 to 14 V

Text in Illustration

*1

Front view of wire harness connector

(to Park/Neutral Position Switch)


NG

GO TO STEP 5


OK

3.

INSPECT PARK/NEUTRAL POSITION SWITCH ASSEMBLY

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


(b) Measure the resistance according to the value(s) in the table below when the shift lever is moved to each position.

Standard Resistance:

Tester Connection

Shift Lever Position

Specified Condition

4 - 9

P or N

Below 1 Ω

Except P and N

10 Ω or higher

1 - 2

R

Below 1 Ω

Except R

10 Ω or higher

1 - 7

D, S, "+" or "-"

Below 1 Ω

Except D, S, "+" and "-"

10 Ω or higher

Text in Illustration

*1

Component without harness connected

(Park/Neutral Position Switch)


NG

REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY


OK

4.

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

(a) Connect the park/neutral position switch connector.


(b) Disconnect the TCM connectors.

(c) Turn the ignition switch to ON, and measure the voltage according to the value(s) in the table below when the shift lever is moved to each position.

Standard Voltage:

Tester Connection

Shift Lever Position

Specified Condition

B40-15 (R) - Body ground

R

11 to 14 V*

Except R

Below 1 V

B40-16 (D) - Body ground

D, S, "+" or "-"

11 to 14 V

Except D, S, "+" and "-"

Below 1 V

Text in Illustration

*1

Front view of wire harness connector

(to TCM)

HINT:

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


OK

REPLACE TCM


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

5.

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

(a) Turn the ignition switch off.

(b) Disconnect the TCM connector.

(c) Disconnect the park/neutral position switch connector.

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

Standard Resistance (Check for Open):

Tester Connection

Condition

Specified Condition

B2-4 (B) - B40-11 (NSW)

Always

Below 1 Ω

Standard Resistance (Check for Short):

Tester Connection

Condition

Specified Condition

B2-4 (B) or B40-11 (NSW) - Body ground

Always

10 kΩ or higher

Text in Illustration

*1

Front view of wire harness connector

(to Park/Neutral Position Switch)

*2

Front view of wire harness connector

(to TCM)



OK

REPLACE TCM


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

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