2009 Scion xB AutomaticFACTORY OEM SERVICE PROCEDURE

How To Proceed With Troubleshooting

HINT:

  • Use these procedures to troubleshoot the power window control system.
  • *: Use an intelligent tester or Techstream.
  1. VEHICLE BROUGHT TO WORKSHOP 
  2. INSPECT BATTERY VOLTAGE 

    Standard voltage: 

    11 to 14 V 

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

  3. PROBLEM SYMPTOMS TABLE 

    Result 

    RESULT CHART

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

    B:  Go to step  5

    A: Go to next step 

  4. OVERALL ANALYSIS AND TROUBLESHOOTING* 
    1. Terminals of ECU (See TERMINALS OF ECU  )
    2. Operation check (See OPERATION CHECK  )
    3. DATA LIST / ACTIVE TEST (See DATA LIST / ACTIVE TEST  )
  5. REPAIR OR REPLACE 
  6. CONFIRMATION TEST 

    NEXT : END 

Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.

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