Checking The Lin Bus
WARNING: This page is about a different car, the 2010 Volvo V70, 2009 Volvo V70, and 2008 Volvo V70. However, it is still accessible from the selected car via links, so may be relevant.
This function is used to check the components communicating with the climate control module (CCM) via LIN bus 1 and LIN bus 2. A number of diagnostic trouble codes (DTCs) will be stored, depending on the fault, if there is a fault in one of the LIN buses. The LIN buses must be calibrated after downloading new software and after replacing the climate control module (CCM).