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Home >> Lexus >> 2015 >> ES 350 >> Repair and Diagnosis >> Electrical >> Starter >> Smart Access System (For Start Function) - Diagnostic Codes & Symptom Tests >> SMART ACCESS SYSTEM WITH PUSH-BUTTON START (for Start Function) >> DTC B2286: Runnable Signal Malfunction; DTC P0335: Crankshaft Position Sensor Circuit Malfunction (NE Signal) [08/2014 - ] >> Procedure
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DTC B2286: Runnable Signal Malfunction; DTC P0335: Crankshaft Position Sensor Circuit Malfunction (NE Signal) [08/2014 - ]: Procedure

  1. READ VALUE USING TECHSTREAM 
    1. Connect the Techstream to the DLC3.
    2. Turn the engine switch on (IG).
    3. Turn the Techstream on.
    4. Enter the following menus: Body Electrical / Power Source Control or Starting Control / Data List.
    5. Read the Data List according to the display on the Techstream.
      POWER SOURCE CONTROL

      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Engine Condition Engine state/Stop or Run Stop: Engine stopped
      Run: Engine running      		 -
      STARTING CONTROL

      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Engine Speed Engine speed/0 to 16383 r/min Fluctuates in accordance with engine speed -

      OK

      On the Techstream screen, the display changes as shown in the charts above.

      Result

      Result Proceed to
      NG A
      OK B

    B → See step   6 

    A: Go to next step 

  2. CHECK HARNESS AND CONNECTOR (POWER SOURCE) See step   1 

    NG → REPAIR OR REPLACE HARNESS OR CONNECTOR IN CIRCUIT CONNECTED TO POWER SOURCE 

    OK: Go to next step 

  3. CHECK HARNESS AND CONNECTOR (GROUND) See step   2 

    NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: Go to next step 

  4. CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) - ECM) 
    1. Disconnect the A22 ECM connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      A36-16 (NE) - A22-22 (NEO) Always Below 1 Ω
      A36-16 (NE) or A22-22 (NEO) - Body ground Always 10 kΩ or higher

    NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: Go to next step 

  5. CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) 
    1. Reconnect the A36 certification ECU (smart key ECU assembly) connector.
      GTY401976Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Check the engine speed input signal waveform at the terminal of the certification ECU.

      Standard Frequency

      Tester Connection Condition Specified Condition
      A36-16 (NE) - Body ground Engine stopped No pulse generated
      Engine running Pulse generated
      TEXT IN ILLUSTRATION

      *a Component with harness connected
      (Certification ECU (Smart Key ECU Assembly))

    NG → See step   6 

    OK → See step   7 

  6. GO TO SFI SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING). Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [08/2014 - ] 
  7. REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to  REMOVAL [08/2014 - ] 
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