Rear Sunshade Description and Operation
The rear sunshade system consists of the following components:
| • | Power sunshade activation button. |
| • | Rear sunshade assembly. |
| • | Power sunshade module (PSM). |
| • | F22 RR SUN BLIND 10A Fuse. |
Refer to the Master Electrical component List. Refer to
Master Electrical Component List.
Rear Sunshade Electric System Operation
The intent of the Rear Electric Sunshade feature is to provide glare protection
and privacy to the vehicle occupants. When the activation button in the overhead console
is pressed, the power sunshade module will provide the power sunshade motor with positive
voltage. Over a period of approximately 6 seconds, the rear power sunshade will extend
out of the rear window shelf trim, providing rear occupants with privacy and glare
protection. Once fully extended, a second press of the rear sunshade activation button
will retract the rear power sunshade.
Rear Sunshade Electric System Power and Grounds
High current battery voltage is supplied to the rear power sunshade 10A F22
Fuse located in the underhood fuse block. The rear power sunshade uses this voltage
to power the sunshade motor. Battery positive voltage from the 10A F22 Fuse located
in the underhood fuse block is applied to the rear sunshade assembly with the ignition
in the ON position. The rear power sunshade assembly is grounded via circuit G208.
Rear Sunshade Circuit Description
The rear sunshade module sends a 5? volt reference voltage through the rear
sunshade button signal to the rear sunshade button located on the overhead console.
When the rear sunshade button is pressed, the signal circuit is closed to ground and
the 5? volt supply is dropped across the resistor indicating the rear sunshade request.
Automatic Fail Safe Features
Below are automatic protection features built into the rear window sunshade
system. When any of these features are activated, the rear window sunshade assembly
will take the listed action:
| • | Interruption to the rear window sunshade's operation during extension
(on) - The rear window sunshade will remain in the interrupted position until
the rear window sunshade button is pressed again upon which time it will return to
the retracted position. |
| • | Interruption to the rear window sunshade's operation during retraction
(off) - The rear window sunshade will stay in the interrupted position until
the rear window sunshade button is pressed again, upon which time it will return the
extended position. |
| • | If the rear window sunshade is in the extended position when reverse gear
is selected on the transmission selector lever , the rear window sunshade
will retract. When the transmission selector lever is moved out of reverse gear, the
rear window sunshade button must be pressed to extend the rear window sunshade. |
