POWER WINDOW CONTROL SYSTEM HOW TO PROCEED WITH TROUBLESHOOTING

VEHICLE BROUGHT TO WORKSHOP

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CUSTOMER PROBLEM ANALYSIS CHECK

• In troubleshooting, confirm that the problem symptoms have been accurately identified. Preconceptions should be discarded in order to make an accurate judgment. To clearly understand what the problem symptoms are, it is extremely important to ask the customer about the problem and the conditions at the time the malfunction occurred.

• Gather as much information as possible for reference. Past problems that seem unrelated may also help in some cases.

• The following 5 items are important points in the problem analysis:

  What	Vehicle model, system name
  When	Date, time, occurrence frequency
  Where	Road conditions
  Under what conditions?	Driving conditions, weather conditions
  How did it happen?	Problem symptoms

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INSPECT BATTERY VOLTAGE

1. Measure the battery voltage.

   Standard voltage
   11 to 14 V

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

   
   

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CHECK FOR DTC

1. Check for DTCs and note any codes that are output Click here.

2. Delete DTCs.

3. Recheck for DTCs.

   Result
   Result Proceed to No DTCs output A DTCs output B Click here

   
   

   B

   GO TO DIAGNOSTIC TROUBLE CODE CHART

   A

PROBLEM SYMPTOMS TABLE

B

GO TO STEP 7

A

OVERALL ANALYSIS AND TROUBLESHOOTING

1. Data list/Active test Click here

2. Circuit inspection

3. Terminal of ECU Click here

   
   

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ADJUST, REPAIR OR REPLACE

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RESET POWER WINDOW MOTOR

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