How To Proceed With Troubleshooting

WINDSHIELD / WINDOWGLASS: POWER WINDOW CONTROL SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING

HINT
* Use these procedures to troubleshoot the power window control system.
* *: Use the Techstream.

1. VEHICLE BROUGHT TO WORKSHOP

NEXT -- Continue to next step.

2. INSPECT BATTERY VOLTAGE

Standard voltage:

11 to 14 V

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

NEXT -- Continue to next step.

3. CHECK FOR DTC (ELECTRIC POWER CONTROL SYSTEM)*

(a) Using the Techstream, check if the electric power control system is functioning normally.

Result:





B -- GO TO ELECTRIC POWER CONTROL SYSTEM Electric Power Control System
A -- Continue to next step.

4. CHECK FOR DTC*

(a) Check for DTCs and note any codes that are output.

(b) Delete the DTC.

(c) Recheck for DTCs. Based on the DTCs output in the first step, try to force output of the same DTC by simulating the symptoms indicated by the DTC.

Result:





B -- GO TO DIAGNOSTIC TROUBLE CODE CHART Power Window Control System

C -- GO TO CAN COMMUNICATION SYSTEM CAN Communication System

D -- GO TO LIN COMMUNICATION SYSTEM LIN Communication System
A -- Continue to next step.

5. PROBLEM SYMPTOMS TABLE

Result:





B -- GO TO STEP 7
A -- Continue to next step.

6. OVERALL ANALYSIS AND TROUBLESHOOTING*

(a) Operation Check Operation Check.

(b) Terminals of ECU Pinout Values and Diagnostic Parameters.

(c) Data List / Active Test Scan Tool Testing and Procedures.

NEXT -- Continue to next step.

7. REPAIR OR REPLACE

Result:





B -- GO TO STEP 9
A -- Continue to next step.

8. RESET POWER WINDOW MOTOR

(a) If the power window master switch AUTO light is blinking, reset the power window motor Initialization.

NEXT -- Continue to next step.

9. CONFIRMATION TEST

NEXT -- END