Circuit/System Verification

Ignition On/Vehicle In Service Mode
Perform the scan tool control function: Driver Window Motor Up & Down
Verify the component works as specified: M74D Window Motor - Driver = Up & Down
- If not the specified state
  Test or replace the component: M74D Window Motor - Driver
- If the specified state
Perform the scan tool control function: Driver Window Motor Down
Operate the component: S79D Window Switch - Driver - Pulled = Up & Release
Verify the component works as specified: M74D Window Motor - Driver = Express Up
- If not the specified state
  Use the following procedure: Window Motor Programming - Express Function
- If the specified state
Ignition/Vehicle & All vehicle systems Off - For greater than 2 min
Ignition On/Vehicle In Service Mode
Perform the scan tool control function: Driver Window Motor Down
Operate the component: S79D Window Switch - Driver - Pulled = Up & Release
Verify the component works as specified: M74D Window Motor - Driver = Express Up
- If not the specified state
  Test or replace the component: M74D Window Motor - Driver
- If the specified state
All OK.