Rainier AWD L6-4.2L VIN S (2005)
Heated Glass Element: Scan Tool Testing and Procedures
Scan Tool Data Definitions
SCAN TOOL DATA DEFINITIONS
HVAC CONTROL MODULE
Rear Defrost Switch: The scan tool displays On/Off. When the rear window defogger switch is pressed, the scan tool displays will momentarily
display On.
LIFTGATE MODULE (LGM)/ENDGATE MODULE (EGM)
Defog Relay Voltage: The scan tool displays the voltage supplied to the rear defogger grid.
Rear Defog Requested: The scan tool displays Yes/No. When the window defogger switch is pressed, a request from HVAC control module is sent
to LGM. This parameter indicates if the request was received.
Rear Defog Commanded: When the window defogger switch is pressed, a request from the HVAC control module is sent to the EGM. This
parameter indicates if the request was received and executed. "Suspend" is displayed when the end-gate glass is open.
