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Circuit/System Verification

WARNING: This page is about a different car, the 2011 Buick Regal. However, it is still accessible from the selected car via links, so may be relevant.

Ignition ON, observe the scan tool Hazard Lamps Switch Backlight Command parameter while operating the dimmer switch from high to low. The reading should change from a high percent to a low percent as the switch is activated.

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