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Home >> Toyota >> 2009 >> Corolla S, 1.8 L, Standard >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 1 (Automatic Transmission - U250E) >> Automatic Transaxle System >> DTC P0705 Transmission Range Sensor Circuit Malfunction (PRNDL Input) >> Inspection Procedure

Inspection Procedure

WARNING: This page is about a different variant/trim than selected.

HINT:

Using 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.

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. READ DATA LIST 
    1. Warm up the engine.
    2. Turn the ignition switch off.
    3. Connect Techstream to the DLC3.
    4. Turn the ignition switch to the on position.
    5. Turn on the tester.
    6. Select the item "Powertrain/Engine and ECT/Data List".
    7. According to the display on the tester, read the "Data List".
DATA LIST

Tester Display Measurement Item/Range Normal Condition Diagnostic Note
Neutral Position SW Signal PNP Switch Status/ON or OFF Shift lever position is: P and N: ON Except P and N: OFF When the shift lever position displayed on 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 Shift lever position is: R: ON Except R: OFF ↑
Shift SW Status (P Range) PNP Switch Status/ON or OFF Shift lever position is: P: ON Except P: OFF ↑
Shift SW Status (N Range) PNP Switch Status/ON or OFF Shift lever position is: N: ON Except N: OFF ↑
Shift SW Status (D Range) PNP Switch Status/ON or OFF Shift lever position is: D and S: ON Except D and S: OFF ↑
Sports Mode Selection SW Sport Mode Select Switch Status/ON or OFF Shift lever position is: S, "+" and "-": ON Except S, "+" and "-": OFF -
  1. CHECK HARNESS AND CONNECTOR (BATTERY - PARK/NEUTRAL POSITION SWITCH) 
    1. Disconnect the park/neutral position switch connector.
    2. Turn the ignition switch to ON.
    3. Measure the voltage according to the value(s) in the table below.

      Standard voltage 

      VOLTAGE SPECIFICATION

      Tester Connection Switch Condition Specified Condition
      B88-2 (RB) - Body ground Ignition switch ON 11 to 14 V

      NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

      Fig 1: Identifying B88 Connector Terminals
      G06011354Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      OK: Go to next step 

  2. CHECK HARNESS AND CONNECTOR (OUTPUT SIGNAL) 
    1. Turn the ignition switch to ON.
    2. Measure the voltage according to the value(s) in the table below.

      Standard voltage 

      VOLTAGE SPECIFICATION

      Tester Connection Switch Condition Specified Condition
      B88-4 (B) - Body ground Ignition switch ON 11 to 14 V

      NG: Go to step  8

      Fig 2: Identifying B88 Connector Terminals
      G06011355Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      OK: Go to next step 

  3. INSPECT PARK/NEUTRAL POSITION SWITCH ASSEMBLY 
    1. Disconnect the park/neutral position switch connector.
    2. Measure resistance according to the value(s) in the table below when the shift lever is moved to each position.

      Standard resistance 

      RESISTANCE SPECIFICATION

      Tester Connection Shift Position Specified Condition
      4 - 5 P and N Below 1 Ω
      Except P and N 10 Ω or higher
      2 - 6 P Below 1 Ω
      Except P 10 Ω or higher
      2 - 1 R Below 1 Ω
      Except R 10 Ω or higher
      2 - 9 N Below 1 Ω
      Except N 10 Ω or higher
      2 - 7 D, S, "+" and "-" Below 1 Ω
      Except D, S, "+" and "-" 10 Ω or higher
      Fig 3: Identifying B88 Connector Terminals
      G06011356Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

      OK: Go to next step 

  4. CHECK HARNESS AND CONNECTOR (PARK/NEUTRAL POSITION SWITCH - ECM) 
    1. Connect the park/neutral position switch connector.
    2. Disconnect the ECM connector.
    3. 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 

      VOLTAGE SPECIFICATION

      Tester Connection Shift Position Specified Condition
      B31-73 (P) - Body ground P 11 to 14 V
      Except P Below 1 V
      B31-54 (N) - Body ground N 11 to 14 V
      Except N Below 1 V
      B31-53 (R) - Body ground R 11 to 14 V *
      Except R Below 1 V
      B31-56 (D) - Body ground D and S 11 to 14 V
      Except D and S Below 1 V
      Fig 4: Identifying B31 Connector Terminals
      G06011357Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      HINT:

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

      NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

      OK: Go to next step 

  5. CHECK HARNESS AND CONNECTOR (BATTERY - TRANSMISSION CONTROL SWITCH) 
    1. Disconnect the transmission control switch connector of shift lock control unit assembly.
    2. Turn the ignition switch to ON.
    3. Measure the voltage according to the value(s) in the table below.

      Standard voltage 

      VOLTAGE SPECIFICATION

      Tester Connection Switch Condition Specified Condition
      E27-6 - Body ground Ignition switch ON 11 to 14 V

      NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

      Fig 5: Identifying E27 Connector Terminals
      G06011358Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      OK: Go to next step 

  6. INSPECT SHIFT LOCK CONTROL UNIT (TRANSMISSION CONTROL SWITCH) 
    1. Disconnect the transmission control switch connector of shift lock control unit assembly.
    2. Measure the resistance according to the value(s) in the table below when the shift lever is moved to each position.

      Standard resistance 

      RESISTANCE SPECIFICATION

      Tester Connection Shift Position Specified Condition
      E27-6 - E27-13 S, "+" and "-" Below 1 Ω
      Except S, "+" and "-" 10 Ω or higher

      NG: REPLACE SHIFT LOCK CONTROL UNIT  (See DISASSEMBLY )

      Fig 6: Identifying E27 Connector Terminals
      G06011359Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      OK: Go to next step 

  7. CHECK HARNESS AND CONNECTOR (TRANSMISSION CONTROL SWITCH - ECM) 
    1. Connect the park/neutral position switch connector.
    2. Disconnect the ECM connector.
    3. 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 

      VOLTAGE SPECIFICATION

      Tester Connection Shift Position Specified Condition
      B31-74 (S) - Body ground S, "+" and "-" 11 to 14 V
      Except S, "+" and "-" Below 1 V

      NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

      Fig 7: Identifying B31 Connector Terminals
      G06011360Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      OK: REPLACE ECM  (See REMOVAL )

  8. CHECK HARNESS AND CONNECTOR (PARK/NEUTRAL POSITION SWITCH - ECM) 
    1. Turn the ignition switch off.
    2. Disconnect the ECM connector.
    3. Disconnect the park/neutral position switch connector.
    4. Measure the resistance according to the value(s) in the table below.

      Standard resistance (Check for open) 

      RESISTANCE SPECIFICATION

      Tester Connection Condition Specified Condition
      B88-4 (B) - B31-52 (NSW) Always Below 1 Ω

      Standard resistance (Check for short) 

      RESISTANCE SPECIFICATION

      Tester Connection Condition Specified Condition
      B88-4 (B) or B31-52 (NSW) - Body ground Always 10 kΩ or higher

      NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

      Fig 8: Identifying B88 And B31 Connector Terminals
      G06011361Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      OK: REPLACE ECM  (See REMOVAL )

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