How To Proceed With Troubleshooting

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

HOW TO PROCEED WITH TROUBLESHOOTING
HINT:
- Use this procedure to troubleshoot the power window control system.
- The intelligent tester should be used in steps 3 and 5.

1. VEHICLE BROUGHT TO WORKSHOP
NEXT -- Continue to next step.
2. CUSTOMER PROBLEM ANALYSIS CHECK AND SYMPTOM CHECK
NEXT -- Continue to next step.
3. CHECK COMMUNICATION FUNCTION OF MULTIPLEX COMMUNICATION SYSTEM (BEAN)

(a) Use the intelligent tester to confirm normal function of the multiplex communication system.
(1) (ECU unconnected, communication line malfunctioning) Without code outputs, proceed to A.
(2) (ECU unconnected, communication line malfunctioning) With code outputs, proceed to B.
B -- Go to MULTIPLEX COMMUNICATION SYSTEM
A -- Continue to next step.
4. PROBLEM SYMPTOMS TABLE
Symptom Related Diagnostic Procedures

NEXT -- Continue to next step.
5. OVERALL ANALYSIS AND TROUBLESHOOTING
(a) Data list/Active test
Scan Tool Testing and Procedures
(b) Circuit inspection
(c) Terminal of ECU
Pinout Values and Diagnostic Parameters

NEXT -- Continue to next step.
6. ADJUST, REPAIR OR REPLACE
NEXT -- Continue to next step.
7. RESET POWER WINDOW MOTOR
Initialization

NEXT -- END