Circuit/System Verification
WARNING: This page is about a different car, the 2017 GMC Acadia. However, it is still accessible from the selected car via links, so may be relevant.
- 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
- If not the specified state
- Operate the component:S79D Window Switch - Driver
Verify the component works as specified:M74D Window Motor - Driver =Express Up & Express Down
- If not the specified state
Use the following procedure: Window Motor Programming - Express Function
- If the specified state
- If not the specified state
- Ignition/Vehicle & All vehicle systems » Off
- Ignition » On / Vehicle » In Service Mode
- Operate the component:S79D Window Switch - Driver
Verify the component works as specified:M74D Window Motor - Driver =Express Up & Express Down
- If not the specified state
Test or replace the component: M74D Window Motor - Driver.
- If the specified state
- If not the specified state
- All OK.
NOTE:
It may take up to 2 min for all vehicle systems to power down before an accurate ground or low reference circuit continuity test can be performed.