Heated Glass Control Module: Description and Operation

Heated Windshield Control Module

Heated Windshield Control Module (J505) - arrow - is located under driver's seat, next to the battery.

• Additional information:

297The Touareg

298The Touareg Electrical System

General Description:

Heated Windshield Control Module (J505) is activated either by Climatronic Control Module (J255) or by A/C Control Module (J301), depending on vehicle equipment.

Heated Windshield (Z2) is switched on by Heated Windshield Control Module (J505) under the following conditions:

• Outside temperature < 5°C

• Voltage at Heated Windshield Control Module (J505) greater than 12V

• Engine is running

• Button on Climatronic control head is pressed

• No load limitation via Vehicle Electrical System Control Module (J519)

Depending on the outside temperature the heating period is a maximum of 6 minutes.

DTC recognition and display:

Heated front windshield is equipped with On Board Diagnostics (OBD) which assists troubleshooting.

For fault-finding, use the Vehicle Diagnostic, Testing and Information System (VAS 5051A), and the "Guided fault finding" function.

Check heated front windshield --> [ Heated Windshield, Checking ] Testing and Inspection.