Lexus RX (RX 350L, RX450h) 2016-2024 Repair Manual: Transmission Range Sensor "A" Circuit Open (P070513,P070562)

Lexus RX (RX 350L, RX450h) 2016-2024 Repair Manual / Engine & Hybrid System / 2gr-fks (engine Control) / Sfi System / Transmission Range Sensor "A" Circuit Open (P070513,P070562)

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

Note

P070513

Transmission Range Sensor "A" Circuit Open

All switches are off simultaneously for NSW, P, R, N and D for 1 minute or more (2 trip detection logic).
  • Open or short in park/neutral position switch assembly circuit
  • Park/neutral position switch assembly
  • ECM

Comes on

DTC stored

SAE Code: P0705

P070562

Transmission Range Sensor "A" Signal Compare Failure

Either of the following conditions A or B is met (2 trip detection logic):

A. One of the following conditions (a), (b) or (c) is met for 2 seconds or more:

(a) Any 2 or more of the following signals are on simultaneously:

  • P input signal
  • R input signal
  • D input signal

(b) Any 2 or more of the following signals are on simultaneously:

  • N input signal
  • R input signal
  • D input signal

(c) Any 2 or more of the following signals are on simultaneously:

  • NSW input signal
  • R input signal
  • D input signal

B. Any of the following conditions is met for 2 seconds or more with the shift lever in M:

  • NSW input signal is on
  • P input signal is on
  • N input signal is on
  • R input signal is on
  • Open or short in park/neutral position switch assembly circuit
  • Park/neutral position switch assembly
  • Open or short in transmission control switch circuit
  • Transmission control switch (shift lever assembly)
  • ECM

Comes on

DTC stored

SAE Code: P0705

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 a signal to the ECM.

For security, 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, R, N, D, or M). 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 then illuminate the MIL and store a DTC.

MONITOR STRATEGY

Related DTCs

P0705: Transmission range switch verify switch input

Required Sensors/Components (Main)

Park/Neutral position switch assembly

Required Sensors/Components (Related)

-

Frequency of Operation

Continuous

Duration

2 seconds: Case 1 and 3

60 seconds: Case 2

MIL Operation

2 driving cycles

Sequence of Operation

None

TYPICAL ENABLING CONDITIONS

Case 1 and 2

Monitor runs whenever the following DTCs are not stored

None

All of the following conditions are met

-

Battery voltage

8 V or higher

Engine switch

On (IG)

Starter

Off
Case 3

Monitor runs whenever the following DTCs are not stored

None

All of the following conditions are met

-

Battery voltage

8 V or higher

Engine switch

On (IG)

Starter

Off

One of the following conditions is met

(a), (b), (c) or (d)

(a) Park position switch

On

(b) Neutral position switch

On

(c) Park/Neutral position switch

On

(d) R range position switch

On

TYPICAL MALFUNCTION THRESHOLDS

Case 1

Any two of the following conditions are met

1, 2 and 3

1. One of the following conditions is met

(a), (b) or (c)

(a) Park position switch

On

(b) Neutral position switch

On

(c) Park/Neutral position switch

On

2. R range position switch

On

3. D range position switch

On
Case 2

All of the following conditions are met

-

Park position switch

Off

Neutral position switch

Off

Park/Neutral position switch

Off

R range position switch

Off

D range position switch

Off
Case 3

M range position switch

On

CONFIRMATION DRIVING PATTERN

HINT:

  • After repair has been completed, clear the DTC and then check that the vehicle has returned to normal by performing the following All Readiness check procedure.

    Click here

  • When clearing the permanent DTCs, refer to the "CLEAR PERMANENT DTC" procedure.

    Click here

  1. Connect the Techstream to the DLC3.
  2. Turn the engine switch on (IG).
  3. Turn the Techstream on.
  4. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
  5. Turn the engine switch off and wait for at least 30 seconds.
  6. Turn the engine switch on (IG) [A].
  7. Turn the Techstream on.
  8. Move the shift lever to R and wait 2 seconds or more [B].
  9. Move the shift lever to N and wait 2 seconds or more [C].
  10. Move the shift lever to D and wait 2 seconds or more [D].
  11. Move the shift lever to M and wait 2 seconds or more [E].
  12. Move the shift lever to P and wait 2 seconds or more [F].
  13. Wait 1 minute or more [G].
  14. Enter the following menus: Powertrain / Engine / Trouble Codes [H].
  15. Read the pending DTCs.

    HINT:

    • If a pending DTC is output, the system is malfunctioning.
    • If a pending DTC is not output, perform the following procedure.
  16. Enter the following menus: Powertrain / Engine / Utility / All Readiness.
  17. Input the DTC: P070513 or P070562.
  18. Check the DTC judgment result.

    Techstream Display

    Description

    NORMAL
    • DTC judgment completed
    • System normal

    ABNORMAL
    • DTC judgment completed
    • System abnormal

    INCOMPLETE
    • DTC judgment not completed
    • Perform driving pattern after confirming DTC enabling conditions

    HINT:

    • If the judgment result is NORMAL, the system is normal.
    • If the judgment result is ABNORMAL, the system is malfunctioning.
    • If the judgment result is INCOMPLETE, perform steps [B] through [H] again.
    • [A] to [H]: Normal judgment procedure.

      The normal judgment procedure is used to complete DTC judgment and also used when clearing permanent DTCs.

    • When clearing the permanent DTCs, do not disconnect the cable from the battery terminal or attempt to clear the DTCs during this procedure, as doing so will clear the universal trip and normal judgment histories.

WIRING DIAGRAM

CAUTION / NOTICE / HINT

NOTICE:

Inspect the fuses for circuits related to this system before performing the following procedure.

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.

DATA LIST

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 engine switch off.

(c) Connect the Techstream to the DLC3.

(d) Turn the engine switch on (IG).

(e) Turn the Techstream on.

(f) Enter the following menus: Powertrain / Engine / Data List / Shift SW Status (P Range), Shift SW Status (R Range), Shift SW Status (N Range), Shift SW Status (S Range) and Shift SW Status (D Range).

Powertrain > Engine > Data List

Tester Display

Shift SW Status (P Range)

Shift SW Status (R Range)

Shift SW Status (N Range)

Shift SW Status (S Range)

Shift SW Status (D Range)

(g) Read the values displayed on the Techstream.

Techstream Display

Measurement Item/Range

Normal Condition

Diagnostic Note

Shift SW Status (P Range)

Park/Neutral position switch assembly status:

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

-

Shift SW Status (R Range)

Park/Neutral position switch assembly status:

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

-

Shift SW Status (N Range)

Park/Neutral position switch assembly status:

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

-

Shift SW Status (S Range)

Transmission control switch status:

ON or OFF
  • ON: Shift lever in M
  • OFF: Shift lever not in M

-

Shift SW Status (D Range)

Park/Neutral position switch assembly status:

ON or OFF
  • ON: Shift lever in D or M
  • OFF: Shift lever not in D or M

-

PROCEDURE

1.

READ VALUE USING TECHSTREAM (NEUTRAL POSITION SW AND SHIFT SW STATUS)

(a) Connect the Techstream to the DLC3.

(b) Turn the engine switch on (IG).

(c) Turn the Techstream on.

(d) Enter the following menus: Powertrain / Engine / Data List / Neutral Position SW and Shift SW Status (P, R, N and D Range).

Powertrain > Engine > Data List

Tester Display

Neutral Position SW

Shift SW Status (P Range)

Shift SW Status (R Range)

Shift SW Status (N Range)

Shift SW Status (D Range)

(e) According to the display on the Techstream, read the Data List.

OK:

Techstream Display

Shift Lever Position

Specified Condition

Neutral Position SW

P or N

ON

Except P or N

OFF

Shift SW Status (P Range)

P

ON

Except P

OFF

Shift SW Status (R Range)

R

ON

Except R

OFF

Shift SW Status (N Range)

N

ON

Except N

OFF

Shift SW Status (D Range)

D or M

ON

Except D or M

OFF
NG

GO TO STEP 6

OK

2.

READ VALUE USING TECHSTREAM (SHIFT SW STATUS (S RANGE))

(a) Connect the Techstream to the DLC3.

(b) Turn the engine switch on (IG).

(c) Turn the Techstream on.

(d) Enter the following menus: Powertrain / Engine / Data List / Shift SW Status (S Range).

Powertrain > Engine > Data List

Tester Display

Shift SW Status (S Range)

(e) Read the Data List displayed on the Techstream.

OK:

Techstream Display

Shift Lever Position

Specified Condition

Shift SW Status (S Range)

M

ON

Except M

OFF
OK

CHECK FOR INTERMITTENT PROBLEMS

NG

3.

INSPECT TRANSMISSION FLOOR SHIFT ASSEMBLY (TRANSMISSION CONTROL SWITCH)

(a) Inspect the transmission control switch.

  • for 2WD models: Click here
  • for AWD models: Click here
NG

REPLACE TRANSMISSION FLOOR SHIFT ASSEMBLY (TRANSMISSION CONTROL SWITCH)
OK

4.

CHECK TERMINAL VOLTAGE (POWER SOURCE OF TRANSMISSION CONTROL SWITCH)

*a

Front view of wire harness connector

(to Transmission Control Switch)

(a) Disconnect the transmission control switch connector.

(b) Turn the engine switch on (IG).

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

Standard Voltage:

Tester Connection

Condition

Specified Condition

J21-4 (IG) - Body ground

Engine switch on (IG)

11 to 14 V
NG

REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

5.

CHECK HARNESS AND CONNECTOR (TRANSMISSION CONTROL SWITCH - ECM)

(a) Disconnect the transmission control switch connector.

(b) Disconnect the ECM connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

J21-5 (S) - A37-17 (S)

Always

Below 1 Ω

J21-5 (S) or A37-17 (S) - Body ground and other terminals

Always

10 kΩ or higher
OK

REPLACE ECM

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

6.

CHECK TERMINAL VOLTAGE (POWER SOURCE OF PARK/NEUTRAL POSITION SWITCH ASSEMBLY)

*a

Front view of wire harness connector

(to Park/Neutral Position Switch Assembly)

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

(b) Turn the engine switch on (IG).

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

Standard Voltage:

Tester Connection

Condition

Specified Condition

D15-1 (RB) - Body ground

Engine switch on (IG)

11 to 14 V
NG

REPAIR OR REPLACE HARNESS OR CONNECTOR (PARK/NEUTRAL POSITION SWITCH ASSEMBLY POWER SOURCE CIRCUIT)
OK

7.

INSPECT PARK/NEUTRAL POSITION SWITCH ASSEMBLY

(a) Inspect the park/neutral position switch assembly.

  • for 2WD models: Click here
  • for AWD models: Click here
NG

REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY
OK

8.

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

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

(b) Disconnect the ECM connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

D15-4 (B) - D2-106 (NSW)

Always

Below 1 Ω

D15-7 (DL) - D2-139 (D)

Always

Below 1 Ω

D15-8 (NL) - D2-140 (N)

Always

Below 1 Ω

D15-2 (RL) - D2-107 (R)

Always

Below 1 Ω

D15-3 (PL) - D2-108 (P)

Always

Below 1 Ω

D15-4 (B) or D2-106 (NSW) - Body ground and other terminals

Always

10 kΩ or higher

D15-7 (DL) or D2-139 (D) - Body ground and other terminals

Always

10 kΩ or higher

D15-8 (NL) or D2-140 (N) - Body ground and other terminals

Always

10 kΩ or higher

D15-2 (RL) or D2-107 (R) - Body ground and other terminals

Always

10 kΩ or higher

D15-3 (PL) or D2-108 (P) - Body ground and other terminals

Always

10 kΩ or higher
OK

REPLACE ECM

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR
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