Circuit/System Description
For an overview of the component/system, refer to:Power Windows Description and Operation
| Circuit |
Description |
| B+ - M74D Window Motor - Driver |
Supplied from a fuse. |
| B+ - M74P Window Motor - Passenger |
Supplied from a fuse. |
| B+ - M74LR Window Motor - Left Rear |
Supplied from a fuse. |
| B+ - M74RR Window Motor - Right Rear |
Supplied from a fuse. |
| Power Window Switch Driver Down Signal |
The output circuit is switched to ground to activate the component. |
| Power Window Switch Driver Express Signal |
The output circuit is switched to ground to activate the component. |
| Power Window Switch Driver Up Signal |
The output circuit is switched to ground to activate the component. |
| Power Window Switch Passenger Down Signal |
The output circuit is switched to ground to activate the component. |
| Power Window Switch Passenger Express Signal |
The output circuit is switched to ground to activate the component. |
| Power Window Switch Passenger Up Signal |
The output circuit is switched to ground to activate the component. |
| All Windows Close Switch Signal |
The output circuit is switched to ground to activate the component. |
| All Windows Open Switch Signal |
The output circuit is switched to ground to activate the component. |
| Ground |
Chassis Ground |
| Component |
Description |
| S79D Window Switch - Driver |
The S79 sends a serial data message to the K9 indicating the M74 function that has been requested. |
| M74D Window Motor - Driver |
- Power Window Control
- The control module and the DC motor are one assembly.
|
| S79P Window Switch - Passenger |
The switch has a normally open contact. |
| M74P Window Motor - Passenger |
- Power Window Control
- The control module and the DC motor are one assembly.
|
| M74LR Window Motor - Left Rear |
- Power Window Control
- The control module and the DC motor are one assembly.
|
| M74RR Window Motor - Right Rear |
- Power Window Control
- The control module and the DC motor are one assembly.
|
| S134 Folding Top/Global Window Switch |
- The switch has a normally open contact.
- When the switch is activated, the signal circuit to the control module is grounded.
|
| K9 Body Control Module |
The module controls various vehicle functions like lighting, central door locking, power windows, etc. |