Windshield Deicer System

WINDOW / GLASS: WINDSHIELD DEICER SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING

HINT
* Use these procedures to troubleshoot the windshield deicer 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 VEHICLE TYPE

(a) Check the vehicle type.

Result





B -- Go to step 5
A -- Continue to next step.

4. CHECK LIN COMMUNICATION SYSTEM

(a) Check if the LIN communication system is functioning normally Initial Inspection and Diagnostic Overview.

OK:

LIN DTC is not output.

NG -- Go to LIN COMMUNICATION SYSTEM Initial Inspection and Diagnostic Overview

OK -- Go to step 6

5. CHECK CAN COMMUNICATION SYSTEM

(a) Check if the CAN communication system is functioning normally Service Precautions.

OK:

CAN DTC is not output.

NG -- Go to CAN COMMUNICATION SYSTEM Service Precautions
OK -- Continue to next step.

6. PROBLEM SYMPTOMS TABLE

(a) Refer to the Problem Symptoms Table Problem Symptoms Table.

Result





B -- Go to step 8
A -- Continue to next step.

7. OVERALL ANALYSIS AND TROUBLESHOOTING*

(a) Terminals of ECU Windshield Deicer System

(b) Data List / Active Test Windshield Deicer System

NEXT -- Continue to next step.

8. REPAIR OR REPLACE

NEXT -- Continue to next step.

9. CONFIRMATION TEST

NEXT -- END