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Home >> Toyota >> 2015 >> Avalon Hybrid Limited >> Repair and Diagnosis >> Accessories & Equipment >> Seats >> Seat Heater System - Diagnostics - Introduction - (Hybrid) >> Seat Heater System >> How To Proceed With Troubleshooting [10/2014 - ] >> Procedure

How To Proceed With Troubleshooting [10/2014 - ]: Procedure

  1. VEHICLE BROUGHT TO WORKSHOP 

    Result: 

    NEXT 

    See step  2

  2. CUSTOMER PROBLEM ANALYSIS 
    1. Interview the customer to confirm the trouble (Refer to HOW TO PROCEED WITH TROUBLESHOOTING [10/2014 - 10/2015] or HOW TO PROCEED WITH TROUBLESHOOTING [10/2015 - ] ).

    Result: 

    NEXT 

    See step  3

  3. INSPECT AUXILIARY BATTERY VOLTAGE 
    1. Measure the auxiliary battery voltage with the power switch off.

      Standard Voltage

      11 to 14 V

      If the voltage is below 11 V, recharge or replace the auxiliary battery before proceeding to the next step.

    Result: 

    NEXT 

    See step  4

  4. CHECK FOR DTC* 
    1. Clear the DTCs (Refer to DTC CHECK / CLEAR [10/2014 - ] ).
    2. Check for DTCs (Refer to DTC CHECK / CLEAR [10/2014 - ] ).

      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 [10/2014 - ] )

    Result: 

    See step  5

  5. PROBLEM SYMPTOMS TABLE 
    1. Refer to Problem Symptoms Table (Refer to PROBLEM SYMPTOMS TABLE [10/2014 - ] ).

      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 [10/2014 - ] )
    2. Terminals of ECU (Refer to TERMINALS OF ECU [10/2014 - ] )
    3. Data List / Active Test (Refer to DATA LIST / ACTIVE TEST [10/2014 - ] )
      • *: w/ Front Seat Heater and Climate Control Seat System

    Result: 

    NEXT 

    See step  7

  7. REPAIR OR REPLACE 

    Result: 

    NEXT 

    See step  8

  8. CONFIRMATION TEST 

    Result: 

    NEXT 

    END