DSD Information System
Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> Engine Mechanical >> Starter >> Stop And Start System - Diagnostic Codes (1 Of 3) >> Stop And Start System >> DTC P0335-62: Crankshaft Position Sensor "A" Signal Compare Failure [12/2019 - 10/2022] >> Procedure

DTC P0335-62: Crankshaft Position Sensor "A" Signal Compare Failure [12/2019 - 10/2022]: Procedure

  1. CHECK DTC OUTPUT (SFI SYSTEM) 
    1. Read the DTCs.

      Powertrain > Engine > Trouble Codes 

      Result

      Result Proceed to
      SFI system DTCs are not output A
      SFI system crankshaft position sensor circuit DTC is output B

    Result: 

    B 

    GO TO SFI SYSTEM. Refer to  DIAGNOSTIC TROUBLE CODE CHART [12/2019 - 09/2020]  , or refer to  DIAGNOSTIC TROUBLE CODE CHART [09/2020 - 10/2021]  , or refer to  DIAGNOSTIC TROUBLE CODE CHART [10/2021 - 10/2022] 

    Result: 

    A 

    See step  2

  2. READ VALUE USING GTS (ENGINE SPEED) 
    1. According to the display on the GTS, read the Data List.

      Powertrain > Stop and Start > Data List 

      Tester Display
      Engine Speed

      OK

      Engine speed signal is input (the speeds displayed on the tachometer and the GTS are almost the same).

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    USE SIMULATION METHOD TO CHECK. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [12/2019 - ] 

    Result: 

    NG 

    See step  3

  3. CHECK HARNESS AND CONNECTOR (ENGINE STOP AND START ECU - ECM) 
    1. Disconnect the engine stop and start ECU connector.
    2. Disconnect the ECM connector.
    3. Disconnect the certification ECU (smart key ECU assembly) connector.
    4. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      A34-10 (NE) - A28-30 (NEO) Always Below 1 Ω
      A34-10 (NE) or A28-30 (NEO) - Body ground and other terminals Always 10 kΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    OK 

    See step  4

  4. CHECK HARNESS AND CONNECTOR (ENGINE STOP AND START ECU - BODY GROUND) 
    1. Disconnect the engine stop and start ECU connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      A34-6 (DGND) - Body ground Always Below 1 Ω

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    OK 

    See step  5

  5. CHECK ENGINE STOP AND START ECU (NE SIGNAL INPUT) 
    1. Start the engine and warm it up.
    2. Connect an oscilloscope to the NE and DGND terminals of the engine stop and start ECU connector.
      GTY909767Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component with harness connected
      (Engine Stop and Start ECU)      		 - -
    3. Check the signal waveform according to the condition(s) in the table below.
      GTY866432Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Item Condition
      Tester Connection A34-10 (NE) - A34-6 (DGND)
      Tool Setting 5 V/DIV., 2 ms./DIV.
      Condition Idling after engine warmed up

      Result

      Result Proceed to
      Pulse generation
      (See waveform)      		 A
      Stuck at 0 to 1.5 V B
      Stuck at 8 to 14 V C

    Result: 

    A 

    REPLACE ENGINE STOP AND START ECU. Refer to  REMOVAL [12/2019 - 10/2022] 

    Result: 

    C 

    GO TO SFI SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [12/2019 - 10/2022] 

    Result: 

    B 

    See step  6

  6. CHECK ENGINE STOP AND START ECU (NE TERMINAL VOLTAGE) 
    GTY909764Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    *a Component with harness connected
    (Engine Stop and Start ECU)    		 - -
    1. Disconnect the ECM 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 Condition Specified Condition
      A34-10 (NE) - A34-6 (DGND) Ignition switch ON 8 to 14 V

      HINT: 

      DTCs may be stored during this inspection. Check for DTCs and clear them using the GTS.

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    GO TO SFI SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [12/2019 - 10/2022] 

    Result: 

    NG 

    REPLACE ENGINE STOP AND START ECU. Refer to  REMOVAL [12/2019 - 10/2022] 

Diesel-Data.com