Rear Window Defogger - Function Change
Group: 64Number: 99-01
Date: Mar. 26, 1999
Subject:
Rear Window Defogger, Function Change
Model(s):
A6 Sedan, Avant 1998 VIN: 4B_WN043359-->
Production
Running change to the rear window defogger operation beginning with VIN: 4B_WN043359.
Prior to VIN: 4B_WN043359, the rear window defogger is designed to switch off automatically after approximately 10 minutes of operation.
After running change, once switched ON, the operation is as follows:
Outside Ambient Temperature Rear Window Defogger Operation
At or below 32°F (0°C) ON continuous
Above 32°F (0°C) ON approx. 10 min. then
switches OFF automatically
Note:
The ambient temperature signal is provided to the rear window defogger switch by the HVAC system
Service
- Condition is normal, NO action is necessary, DO NOT attempt any repairs.
- Please explain defogger operation to your customer.