Circuit/System Verification
WARNING: This page is about a different car, the 2019 Buick Cascada, 2018 Buick Cascada, and 2017 Buick Cascada. 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:Horn Relay Command - On and Off
Verify the component turns On and Off: P12 Horn
- If the component does not turn On and Off
- Refer to: Circuit/System Testing
- Go to next step: If the component turns On and Off
- All OK.