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Home >> Toyota >> 2009 >> Highlander Limited, FWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 20 (Engine Control System (1AR-FE) - DTC P0705 - P2A00, DTC U0101) >> DTC P0705 Transmission Range Sensor Circuit Malfunction (PRNDL Input) >> Inspection Procedure

Inspection Procedure

WARNING: This page is about a different variant/trim than selected.
NOTE: Inspect the fuses for circuits related to this system before performing the following inspection procedure.

HINT:

Using the Techstream to read the Data List allows the values or states of switches, sensor, 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 by discovered before parts or wiring is disturbed. Reading the Data List information early in troubleshooting is one way to save diagnostic time.

  1. 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 Techstream to the DLC3.
    4. Turn the ignition switch to ON.
    5. Turn the Techstream on.
    6. Enter the following menus: Powertrain/Engine/Data List/All Data.
    7. Read the values displayed on the Techstream.
      DIAGNOSTIC NOTE

      Techstream Display Measurement Item/Range Normal Condition Diagnostic Note
      Shift SW Status (R Range) Park/neutral position switch status:
      ON or OFF
      • ON: Shift lever in R
      • OFF: Shift lever not in R
      		 When shift lever position displayed on Techstream differs from actual position, adjustment of park/neutral position switch assembly or shift cable may be incorrect
      Shift SW Status (P Range) Park/neutral position switch status:
      ON or OFF
      • ON: Shift lever in P
      • OFF: Shift lever not in P
      		 When shift lever position displayed on Techstream differs from actual position, adjustment of park/neutral position switch assembly or shift cable may be incorrect
      Shift SW Status (N Range) Park/neutral position switch status:
      ON or OFF
      • ON: Shift lever in N
      • OFF: Shift lever not in N
      		 When shift lever position displayed on Techstream differs from actual position, adjustment of park/neutral position switch assembly or shift cable may be incorrect
      Shift SW Status (D Range) Park/neutral position switch status:
      ON or OFF
      • ON: Shift lever in D or S
      • OFF: Shift lever not in D or S
      		 When shift lever position displayed on Techstream differs from actual position, adjustment of park/neutral position switch assembly 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 "-"
      		 -
  1. READ VALUE USING TECHSTREAM 
    1. Connect the Techstream to the DLC3.
    2. Turn the ignition switch to ON.
    3. Turn the Techstream on.
    4. Enter the following menus: Powertrain/Engine/Data List/All Data/All Data.
    5. Read the values displayed on the Techstream.

      OK 

      TECHSTREAM DISPLAY CHART

      Techstream Display Shift Lever Specified Condition
      Neutral Position SW Signal P or N ON
      Except P or N OFF
      Shift SW Status (R Range) R ON
      Except R OFF
      Shift SW Status (P Range) P ON
      Except P OFF
      Shift SW Status (N Range) N ON
      Except N OFF
      Shift SW Status (D Range) D or S ON
      Except D or S OFF

      NG: Go to step  4

      OK: Go to next step 

  2. READ VALUE USING TECHSTREAM (SPORTS MODE SELECTION SW) 
    1. Connect the Techstream to the DLC3.
    2. Turn the ignition switch to ON.
    3. Turn the Techstream on.
    4. Enter the following menus: Powertrain/Engine/Data List/All Data/Sports Mode Selection SW.
    5. Read the values displayed on the Techstream.

      OK 

      TECHSTREAM DISPLAY CHART

      Techstream Display Shift Lever Specified Condition
      Sports Mode Selection SW S ON
      Except S OFF

      NG: Go to step 3 

      OK: CHECK FOR INTERMITTENT PROBLEMS  (See CHECK FOR INTERMITTENT PROBLEMS )

  3. INSPECT TRANSMISSION CONTROL SWITCH 
    1. Disconnect the transmission control switch connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance 

      TESTER CONNECTION SPECIFIED CONDITION CHART

      Tester Connection Condition Specified Condition
      3 (IG) - 7 (S) Shift lever in S, "+" or "-" Below 1 Ω
      Shift lever in any position other than S, "+" or "-" 10 kΩ or higher
    3. Reconnect the transmission control switch connector.

      NG: REPLACE SHIFT LOCK CONTROL UNIT ASSEMBLY  (See REMOVAL )

      Fig 1: Identifying Transmission Control Switch Connector
      G06111096Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      OK: REPAIR OR REPLACE HARNESS OR CONNECTOR (ECM - TRANSMISSION CONTROL SWITCH) 

  4. CHECK HARNESS AND CONNECTOR (PARK/NEUTRAL POSITION SWITCH ASSEMBLY VOLTAGE) 
    1. Disconnect the park/neutral position switch assembly connector.
    2. Turn the ignition switch to ON.
    3. Measure the voltage according to the value(s) in the table below.

      Standard Voltage 

      TESTER CONNECTION SPECIFIED CONDITION CHART

      Tester Connection Switch Condition Specified Condition
      B5-1 (RB) - Body ground Ignition switch ON 11 to 14 V
    4. Reconnect the park/neutral position switch assembly connector.

      NG: REPAIR OR REPLACE HARNESS OR CONNECTOR (PARK/NEUTRAL POSITION SWITCH ASSEMBLY - BATTERY) 

      Fig 2: Identifying Park/Neutral Position Switch Assembly Connector
      G06111097Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      OK: Go to next step 

  5. INSPECT PARK/NEUTRAL POSITION SWITCH ASSEMBLY 
    1. Inspect the park/neutral position switch assembly (See ADJUSTMENT ).

      NG: REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY  (See REMOVAL )

      OK: Go to next step 

  6. CHECK HARNESS AND CONNECTOR (ECM - PARK/NEUTRAL POSITION SWITCH ASSEMBLY) 
    1. Turn the ignition switch to ON.
    2. Measure the voltage according to the value(s) in the table below.
      Fig 3: Identifying ECM Connector Terminals
      G06111098Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard Voltage 

      TESTER CONNECTION SPECIFIED CONDITION CHART

      Tester Connection Condition Specified Condition
      B50-28 (P) - Body ground
      • Ignition switch ON
      • Shift lever in P
      		 11 to 14 V
      • Ignition switch ON
      • Shift lever in any position other than P
      		 0 to 1.5 V
      B50-27 (R) - Body ground
      • Ignition switch ON
      • Shift lever in R
      		 11 to 14 V
      • Ignition switch ON
      • Shift lever in any position other than R
      		 0 to 1.5 V
      B50-26 (N) - Body ground
      • Ignition switch ON
      • Shift lever in N
      		 11 to 14 V
      • Ignition switch ON
      • Shift lever in any position other than N
      		 0 to 1.5 V
      B50-30 (D) - Body ground
      • Ignition switch ON
      • Shift lever in D
      		 11 to 14 V
      • Ignition switch ON
      • Shift lever in any position other than D
      		 0 to 1.5 V

      NG: REPAIR OR REPLACE HARNESS OR CONNECTOR (ECM - PARK/NEUTRAL POSITION SWITCH ASSEMBLY) 

      OK: Go to next step 

  7. CHECK HARNESS AND CONNECTOR (PARK/NEUTRAL POSITION SWITCH ASSEMBLY ECM) 
    1. Disconnect the park/neutral position switch assembly connector.
    2. Disconnect the ECM connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance (Check for Open) 

      TESTER CONNECTION SPECIFIED CONDITION CHART

      Tester Connection Condition Specified Condition
      B5-4(B) - B51-24(NSW) Always Below 1 Ω

      Standard Resistance (Check for Short) 

      TESTER CONNECTION SPECIFIED CONDITION CHART

      Tester Connection Condition Specified Condition
      B5-4 (B) or B51-24 (NSW) - Body ground Always 10 kΩ or higher
    4. Reconnect the ECM connector.
    5. Reconnect the park/neutral position switch assembly connector.

      NG: REPAIR OR REPLACE HARNESS OR CONNECTOR (PARK/NEUTRAL POSITION SWITCH ASSEMBLY - ECM) 

      Fig 4: Identifying ECM And Park/Neutral Position Switch Assembly Connector
      G06111099Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      OK: REPLACE ECM  (See REMOVAL )

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