Window Defogger System

WINDOW / GLASS: WINDOW DEFOGGER SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING

HOW TO PROCEED WITH TROUBLESHOOTING
HINT:
- Use these procedures to troubleshoot the window defogger 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 LIN COMMUNICATION SYSTEM
(a) Check if the LIN communication system is functioning normally Initial Inspection and Diagnostic Overview.

Result





B -- Go to LIN COMMUNICATION SYSTEM
A -- Continue to next step.
4. CHECK CAN COMMUNICATION SYSTEM
(a) Check if the CAN communication system is functioning normally How to Proceed With Troubleshooting.

Result





B -- Go to CAN COMMUNICATION SYSTEM
A -- Continue to next step.
5. PROBLEM SYMPTOMS TABLE
(a) Refer to Problem Symptoms Table Problem Symptoms Table.

Result





B -- Go to step 7
A -- Continue to next step.
6. OVERALL ANALYSIS AND TROUBLESHOOTING*
(a) Terminals of ECU Window Defogger System.
(b) Data List / Active Test Window Defogger System.
(c) Operation Check Window Defogger System.
NEXT -- Continue to next step.
7. REPAIR OR REPLACE
NEXT -- Continue to next step.
8. CONFIRMATION TEST
NEXT -- END