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Inspection Procedure

WARNING: This page is about a different variant/trim than selected.
  1. CHECK ENGINE SWITCH (SWITCH CONDITION) 
    1. Check the power source mode change.
      1. When the key is inside the vehicle and the shift lever is in P, check that pressing the engine switch causes the power source mode to change as follows:

        OK: 

        off → on (ACC) → on (IG) → off 

        NG: GO TO SMART KEY SYSTEM (POWER SOURCE MODE DOES NOT CHANGE)  (See )

        OK: Go to next step 

  2. CHECK WHETHER DTC OUTPUT OCCURS 
    1. Clear the DTCs (See DTC CHECK/CLEAR  ).
    2. Check whether the trouble recurs 5 seconds after the engine switch is turned on (IG).
    3. Check whether DTCs for the main body ECU or certification ECU are output.

      Result 

      RESULT REFERENCE

      DTC Output System Name Proceed to
      No DTC output A
      DTC for main body ECU output Smart key system B
      DTC for certification ECU output Steering lock system C
      DTC for certification ECU output Engine immobiliser system D

      B: GO TO SMART KEY SYSTEM (DIAGNOSTIC TROUBLE CODE CHART)  (See )

      C: GO TO STEERING LOCK SYSTEM (DIAGNOSTIC TROUBLE CODE CHART)  (See DIAGNOSTIC TROUBLE CODE CHART )

      D: GO TO ENGINE IMMOBILISER SYSTEM (DIAGNOSTIC TROUBLE CODE CHART)  (See DIAGNOSTIC TROUBLE CODE CHART )

      A: Go to next step 

  3. CHECK CRANKING FUNCTION 
    1. Check the engine cranking function.
      1. When there is fuel in the fuel tank, the key is inside the vehicle and the shift lever is in P, check that depressing the brake pedal and pressing the engine switch causes the engine to crank.

        OK: 

        Engine cranks. 

        NG: Go to step  8

        OK: Go to next step 

  4. READ VALUE USING TECHSTREAM (L CODE) 
    1. Use the Data List to check if L code certification is functioning properly.

      Smart Key 

      SMART KEY - ACTIVE TEST

      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      L Code Check L code certification result/NG or OK OK: L code certification result normal
      NG: L code certification result abnormal      		 -

      OK: 

      OK is displayed on the Techstream. 

      NG: Go to step  19

      OK: Go to next step 

  5. READ VALUE USING TECHSTREAM (ENGINE START CONDITION) 
    1. Use the Data List to check if the engine start is functioning properly.

      Smart Key 

      SMART KEY - ACTIVE TEST

      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Engine Start Condition Engine start permission determined by certification ECU/ OK or NG OK: Engine start permitted
      NG: Engine start prohibited      		 -

      OK: 

      When the brake pedal is depressed with the key inside the vehicle, OK is displayed on the Techstream. 

      NG: Go to step  20

      OK: Go to next step 

  6. READ VALUE USING TECHSTREAM (S CODE) 
    1. Use the Data List to check if S code certification is functioning properly.

      Smart Key 

      SMART KEY - ACTIVE TEST

      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      S Code Check S code certification result/NG or OK OK: S code certification result normal
      NG: S code certification result abnormal      		 -

      OK: 

      OK is displayed on the Techstream. 

      NG: Go to step  20

      OK: Go to next step 

  7. REPLACE ID CODE BOX 
    1. Replace the ID code box (See ID CODE BOX (W/ SMART KEY SYSTEM) ).
    2. Register the recognition code (ECU code) (See REGISTRATION ).
    3. Check that the engine starts.

      OK: 

      Engine starts. 

      NG: REPLACE ECM  (See REMOVAL )

      OK: END 

  8. READ VALUE USING TECHSTREAM (SHIFT LOCK CONTROL ECU) 
    1. Use the Data List to check if the shift position signal is functioning properly.

      Main Body 

      MAIN BODY - DATA LIST

      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Shift P Signal Shift lever P position signal/ON or OFF ON: Shift lever in P
      OFF: Shift lever not in P      		 -

      OK: 

      ON (shift lever in P) and OFF (shift lever not in P) are displayed on the Techstream. 

      NG: Go to step  13

      OK: Go to next step 

  9. READ VALUE USING TECHSTREAM (PARK/NEUTRAL POSITION SWITCH) 
    1. Use the Data List to check if the park/neutral position switch is functioning properly.

      Main Body 

      MAIN BODY - DATA LIST

      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Neutral SW/ Clutch SW Park/neutral position switch/ON or OFF ON: Shift lever in P or N
      OFF: Shift lever not in P or N      		 -

      OK: 

      ON (shift lever in P or N) and OFF (shift lever not in P or N) are displayed on the Techstream. 

      NG: Go to step  15

      OK: Go to next step 

  10. READ VALUE USING TECHSTREAM (STOP LIGHT SWITCH) 
    1. Use the Data List to check if the stop light switch is functioning properly.

      Main Body 

      MAIN BODY - DATA LIST

      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Stop Light SW Stop light switch/ON or OFF ON: Brake pedal depressed
      OFF: Brake pedal released      		 -

      OK: 

      ON (brake pedal is depressed) and OFF (brake pedal is released) are displayed on the Techstream. 

      NG: GO TO LIGHTING SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING)  (See STOP LIGHT SWITCH CIRCUIT )

      OK: Go to next step 

  11. CHECK STEERING LOCK 
    1. Check if the steering lock is released when turning the engine switch on (ACC).

      OK: 

      The steering lock is released. 

      NG: GO TO STEERING LOCK SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING)  (See HOW TO PROCEED WITH TROUBLESHOOTING )

      OK: Go to next step 

  12. CHECK MAIN BODY ECU (INSTRUMENT PANEL JUNCTION BLOCK) 
    1. Disconnect the E17 main body ECU connector.
    2. Measure the voltage according to the value(s) in the table below.

      HINT:

      The voltage is generated at terminal STSW for 0.3 seconds when the engine cranks.

      Standard Voltage 

      VOLTAGE SPECIFICATION

      Tester Connection Condition Specified Condition
      E17-4 (STSW) - Body ground Brake pedal depressed with shift lever in P or N and engine switch pushed once 11 to 14 V

      NG: REPLACE MAIN BODY ECU (INSTRUMENT PANEL JUNCTION BLOCK) 

      Fig 1: Identifying E17 Main Body ECU Connector Terminals
      G05999205Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      OK: REPLACE ECM  (See ECM )

  13. CHECK SHIFT LOCK CONTROL ECU 
    1. Disconnect the E39 shift lock control ECU connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance 

      RESISTANCE SPECIFICATION

      Tester Connection Condition Specified Condition
      7 (P2) - 1 (E) Shift lever not in P Below 1 Ω
      7 (P2) - 1 (E) Shift lever in P 10 kΩ or higher

      NG: REPLACE SHIFT LOCK CONTROL ECU SUB-ASSEMBLY  (See DISASSEMBLY )

      Fig 2: Identifying Shift Lock Control ECU Connector Terminals
      G05999206Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      OK: Go to next step 

  14. CHECK HARNESS AND CONNECTOR (SHIFT LOCK CONTROL ECU - MAIN BODY ECU AND BODY GROUND) 
    1. Disconnect the E15 main body ECU connector.
    2. Disconnect the E39 shift lock control ECU connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance 

      RESISTANCE SPECIFICATION

      Tester Connection Condition Specified Condition
      E15-15 (P) - E39-7 (P2) Always Below 1 Ω
      E39-1 (E) - Body ground Always Below 1 Ω
      E15-15 (P) or E39-7 (P2) - Body ground Always 10 kΩ or higher

      NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

      Fig 3: Identifying E39 Shift Lock Control ECU Connector Terminals
      G05999207Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      OK: REPLACE MAIN BODY ECU (INSTRUMENT PANEL JUNCTION BLOCK) 

  15. INSPECT STARTER RELAY (ST) 
    1. Remove the starter relay from the engine room relay block.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance 

      RESISTANCE SPECIFICATION

      Tester Connection Condition Specified Condition
      3-5 Battery voltage applied to terminals 1 and 2 Below 1 Ω
      3-5 Battery voltage not applied to terminals 1 and 2 10 kΩ or higher

      NG: REPLACE STARTER RELAY 

      Fig 4: Inspecting Starter Relay (ST)
      G05763817Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      OK: Go to next step 

  16. INSPECT PARK/NEUTRAL POSITION SWITCH ASSEMBLY 
    1. Disconnect the park/neutral position switch connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance 

      RESISTANCE SPECIFICATION

      Tester Connection Switch Condition Specified Condition
      4 (B) - 5 (L) P Below 1 Ω
      4 (B) - 5 (L) N Below 1 Ω
      4 (B) - 5 (U) Not in P or N 10 kΩ or higher

      NG: REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY  (See ON-VEHICLE INSPECTION )

      Fig 5: Identifying Park/Neutral Position Switch Assembly Connector Terminals
      G05763818Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      OK: Go to next step 

  17. CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - PARK/NEUTRAL POSITION SWITCH) 
    1. Disconnect the E17 ECU connector.
    2. Disconnect the B26 switch connector.
      Fig 6: Identifying E17 ECU Connector Terminals
      G05999210Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance 

      RESISTANCE SPECIFICATION

      Tester Connection Condition Specified Condition
      E17-3 (STR) - B26-4 (B) Always Below 1 Ω
      E17-3 (STR) or B26-4 (B) - Body ground Always 10 kΩ or higher

      NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

      OK: Go to next step 

  18. CHECK HARNESS AND CONNECTOR (STARTER RELAY - PARK/NEUTRAL POSITION SWITCH AND BODY GROUND) 
    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance 

      RESISTANCE SPECIFICATION

      Tester Connection Condition Specified Condition
      B26-5 (L) - Relay block ST relay terminal 1 Always Below 1 Ω
      B26-5 (L) or Relay block ST relay terminal 1 - Body ground Always 10 kΩ or higher
      Relay block ST relay terminal 2 - Body ground Always Below 1 Ω

      NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

      Fig 7: Identifying B26 Switch Connector Terminals
      G05999211Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      OK: REPLACE MAIN BODY ECU (INSTRUMENT PANEL JUNCTION BLOCK) 

  19. REPLACE STEERING LOCK ECU (STEERING LOCK ACTUATOR ASSEMBLY) 
    1. Replace the steering lock actuator assembly (steering lock ECU) (See REMOVAL ).
    2. Register the recognition code (ECU code) (See REGISTRATION ).
    3. Check that the engine starts.

      OK: 

      Engine starts. 

      NG: REPLACE ID CODE BOX  (See ID CODE BOX (W/ SMART KEY SYSTEM) )

      OK: END 

  20. REPLACE ECU AGGREGATION BOX (CERTIFICATION ECU) 
    1. Replace the certification ECU (See CERTIFICATION ECU (W/ SMART KEY SYSTEM) ).
    2. Register the recognition code (ECU code) (See REGISTRATION ).
    3. Check that the engine starts.

      OK: 

      Engine starts. 

      NG: REPLACE ID CODE BOX  (See ID CODE BOX (W/ SMART KEY SYSTEM) )

      OK: END 

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