Conditions for Setting the DTC: B0045

WARNING: This page is about a different car, the 2008 Buick LaCrosse and 2008 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.

Roof rail module - left high and/or low circuits is short to ground or short to voltage for 500 milliseconds.
Roof rail module - left high circuit is less than 2.4 volts and roof rail module - left deployment loop resistance is less than 6 ohms for 500 milliseconds.