Rear Defogger - Stays On Until Ignition Is Turned Off
84audi2Applies To 5000 S
1984
Group
64
Subject
Rear Window Defogger
Part Identifier 64 93
Key Points
Rear window defogger stays on until ignition is turned off
C
Number
84-01
January 27, 1984
Modifications have been made to the rear window defogger since the start of production for the 1984 Model Year.
^ When the defogger button is pushed, the red indicator light above the push button will come on and current flows to the rear window heating elements.
^ After approximately 10 minutes the indicator light will go off but the heating elements continue to receive current until the ignition is switched off.
^ Turning off the defogger switch will not interrupt current to the rear window during this time.
^ A 6 pin relay, Part No. 171 959 143A, is used for this system, which has been in production as of VIN 44 EN 008473.
Note Do not install indicator bulb in socket which is located in instrument cluster. It is not compatible with this system. This system cannot be retrofitted to previously built vehicles.