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. CUSTOMER PROBLEM ANALYSIS CHECK AND SYMPTOM CHECK

NEXT -- Continue to next step.

3. INSPECT COMMUNICATION FUNCTION OF LARGE-SCALE MULTIPLEX COMMUNICATION SYSTEM (BEAN)*

(a) Use the Techstream to check if the Multiplex Communication System (MPX) is functioning normally.





B -- Go to MULTIPLEX COMMUNICATION SYSTEM
A -- Continue to next step.

4. CHECK FOR DTC*

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

(b) Delete the DTC.

(c) Recheck for DTC. Try to prompt the DTC by simulating the original activity that the DTC suggests.





B -- Go to DIAGNOSTIC TROUBLE CODE CHART
A -- Continue to next step.

5. PROBLEM SYMPTOMS TABLE





B -- Go to Step 7
A -- Continue to next step.

6. OVERALL ANALYSIS AND TROUBLESHOOTING*

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

(b) On-vehicle inspection On-Vehicle Inspection.

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

(d) Inspection.

(1) Inspect master switch Power Window Master Switch.

(2) Inspect power window switch Front Passenger Side Power Window Switch.

(3) Inspect power window motor Testing and Inspection.

NEXT -- Continue to next step.

7. ADJUST, REPAIR OR REPLACE

NEXT -- Continue to next step.

8. CONFIRMATION TEST

NEXT -- END