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Home >> Toyota >> 2015 >> Highlander LE Plus, FWD >> Repair and Diagnosis >> Body & Frame >> Sun Roof/T-Top/Convertible Top >> Sliding Roof - Diagnostic Codes & Symptom Tests - (Except Hybrid) >> Sliding Roof System >> DTC B2341: Sensor (Motor) Failure; DTC B2344: Position Failure [12/2013 - ] >> Procedure

DTC B2341: Sensor (Motor) Failure; DTC B2344: Position Failure [12/2013 - ]: Procedure

  1. CHECK SLIDING ROOF OPERATION 
    1. Check the sliding roof auto operation function.

      Refer to OPERATION CHECK [12/2013 - ] .

      OK

      Auto operation function operates normally.

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  3

    Result: 

    OK 

    Go to next step 

  2. CHECK DTC OUTPUT 
    1. Clear the DTCs.

      Refer to DTC CHECK / CLEAR [12/2013 - ] .

      Body Electrical > Sliding Roof > Clear DTCs 

    2. Check for DTCs.

      Body Electrical > Sliding Roof > Trouble Codes 

      OK

      DTCs B2341 and B2344 are not output.

      Proceed to
      OK
      NG

    Result: 

    OK 

    USE SIMULATION METHOD TO CHECK: 

    Refer to HOW TO PROCEED WITH TROUBLESHOOTING [12/2013 - 11/2016] .

    Refer to HOW TO PROCEED WITH TROUBLESHOOTING [11/2016 - ] .

    Result: 

    NG 

    REPLACE SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY):  Refer to REMOVAL [12/2013 - ] .

  3. INITIALIZE SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY) 
    1. Check that the sliding roof ECU (sliding roof drive gear sub-assembly) can be initialized.

      Refer to INITIALIZATION [12/2013 - ]

      OK

      Sliding roof ECU (sliding roof drive gear sub-assembly) can be initialized.

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  5

    Result: 

    OK 

    Go to next step 

  4. CHECK DTC OUTPUT 
    1. Clear the DTCs.

      Refer to DTC CHECK / CLEAR [12/2013 - ] .

      Body Electrical > Sliding Roof > Clear DTCs 

    2. Check for DTCs.

      Body Electrical > Sliding Roof > Trouble Codes 

      OK

      DTCs B2341 and B2344 are not output.

      Proceed to
      OK
      NG

    Result: 

    OK 

    END (MALFUNCTION DUE TO INITIALIZATION FAILURE) 

    Result: 

    NG 

    REPLACE SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY): 

    Refer to REMOVAL [12/2013 - ] .

  5. CHECK HARNESS AND CONNECTOR (SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY) - SLIDING ROOF SWITCH (MAP LIGHT ASSEMBLY) AND BODY GROUND) 
    1. Disconnect the S1 sliding roof switch (map light assembly) connector.
    2. Disconnect the S5 sliding roof ECU (sliding roof drive gear sub-assembly) connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      S5-5 (CLS) - S1-16 (CLS) Always Below 1 Ω
      S5-5 (CLS) or S1-16 (CLS) - Body ground Always 10 kΩ or higher
      S5-7 (OPN) - S1-17 (OPN) Always Below 1 Ω
      S5-7 (OPN) or S1-17 (OPN) - Body ground Always 10 kΩ or higher
      S5-6 (DWN) - S1-5 (DOWN) Always Below 1 Ω
      S5-6 (DWN) or S1-5 (DOWN) - Body ground Always 10 kΩ or higher
      S5-4 (UP) - S1-6 (UP) Always Below 1 Ω
      S5-4 (UP) or S1-6 (UP) - Body ground Always 10 kΩ or higher
      S1-1 (GND) - Body ground Always Below 1 Ω
      S5-12 (E) - Body ground Always Below 1 Ω
      Proceed to
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    OK 

    Go to next step 

  6. INSPECT SLIDING ROOF SWITCH (MAP LIGHT ASSEMBLY) 
    1. Remove the sliding roof switch (map light assembly).

      Refer to REMOVAL [12/2013 - ] .

    2. Inspect the sliding roof switch (map light assembly).

      Refer to INSPECTION [12/2013 - ]

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY): 

    Refer to REMOVAL [12/2013 - ] .

    Result: 

    NG 

    REPLACE SLIDING ROOF SWITCH (MAP LIGHT ASSEMBLY): 

    Refer to REMOVAL [12/2013 - ] .