LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Toyota >> 2017 >> Sienna LE, AWD >> Repair and Diagnosis >> Body & Frame >> Seats >> Front Power Seat Control System (W/ Memory) - Diagnostics - Introduction >> FRONT POWER SEAT CONTROL SYSTEM(w/ Memory) >> How To Proceed With Troubleshooting [12/2015 - ] >> Procedure
April 5, 2026: LEMON Manuals is launched! Read the announcement.

How To Proceed With Troubleshooting [12/2015 - ]: Procedure

  1. VEHICLE BROUGHT TO WORKSHOP 

    Result

    Proceed to
    NEXT

    Result: 

    NEXT 

    See step  2

  2. INSPECT BATTERY VOLTAGE 

    Standard voltage

    11 to 14 V

    If the voltage is below 11 V, recharge or replace the battery before proceeding.

    Result

    Proceed to
    NEXT

    Result: 

    NEXT 

    See step  3

  3. CHECK COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM* 
    1. Use the Techstream to check if the CAN communication system is functioning normally.

      (Refer to DIAGNOSIS SYSTEM [12/2015 - 08/2016] Refer to DIAGNOSIS SYSTEM [08/2016 - 11/2017] Refer to DIAGNOSIS SYSTEM [11/2017 - 08/2018] Refer to DIAGNOSIS SYSTEM [08/2018 - ] ).

      Result

      Result Proceed to
      CAN DTCs are not output A
      CAN DTCs are output B

    Result: 

    GO TO CAN COMMUNICATION SYSTEM 

    (Refer to HOW TO PROCEED WITH TROUBLESHOOTING [12/2015 - 08/2016] Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2016 - 11/2017] Refer to HOW TO PROCEED WITH TROUBLESHOOTING [11/2017 - ] )

    Result: 

    See step  4

  4. CHECK DTC OUTPUT* 
    1. Check for DTCs.

      (Refer to DTC CHECK / CLEAR [12/2015 - ] ).

    2. Clear the DTCs.

      (Refer to DTC CHECK / CLEAR [12/2015 - ] ).

    3. Recheck for DTCs.

      (Refer to DTC CHECK / CLEAR [12/2015 - ] ).

      Result

      Result Proceed to
      DTCs are not output A
      DTCs are output B

    Result: 

    GO TO DIAGNOSTIC TROUBLE CODE CHART 

    (Refer to DIAGNOSTIC TROUBLE CODE CHART [12/2015 - ] )

    Result: 

    See step  5

  5. PROBLEM SYMPTOMS TABLE 
    1. Refer to Problem Symptoms Table.

      (Refer to PROBLEM SYMPTOMS TABLE [12/2015 - 08/2016] Refer to PROBLEM SYMPTOMS TABLE [08/2016 - ] ).

      Result

      Result Proceed to
      Fault is not listed in problem symptoms table A
      Fault is listed in problem symptoms table B

    Result: 

    See step  7

    Result: 

    See step  6

  6. OVERALL ANALYSIS AND TROUBLESHOOTING* 
    1. Operation Check

      (Refer to OPERATION CHECK [12/2015 - ] )

    2. Data List / Active Test

      (Refer to DATA LIST / ACTIVE TEST [12/2015 - ] )

    3. Terminals of ECU

      (Refer to TERMINALS OF ECU [12/2015 - ] )

    4. Inspection

      Result

      Proceed to
      NEXT

    Result: 

    NEXT 

    See step  7

  7. ADJUST, REPAIR OR REPLACE 

    Result

    Proceed to
    NEXT

    Result: 

    NEXT 

    See step  8

  8. CONFIRMATION TEST 

    Result

    Proceed to
    NEXT

    Result: 

    NEXT 

    END