Rear Window Defogger System Components

The rear window defogger system consists of the following components:

• HVAC Control Module
• HVAC Controls
• Rear Defogger Relay
• Rear Defogger Grid
• Driver Outside Rearview Mirror
• Passenger Outside Rearview Mirror
• 40A Fuse
  Fig 1: Rear Window Defogger System Diagram

  Courtesy of GENERAL MOTORS COMPANY

  Callout	Component Name
  E17D	E17D Outside Rearview Mirror Glass - Driver
  E18	E18 Rear Defogger Grid
  E17P	E17P Outside Rearview Mirror Glass - Passenger
  A26	A26 HVAC Controls
  K33	K33 HVAC Control Module