05-09-2024, 01:46 PM
The 2016 model XC90, this early SPA is before the HCM was introduced. The CEM runs the headlights. If the car has LED headlamps, there are modules on the headlamp units to drive the LEDs, and the adaptive functions. The modules are not ECUs in the car loaded with software, they are just hardware controlled by the CEM through LIN bus communications.
It looks like the HCM was introduce to the SPA for 2017 MY on the LED headlamp equipped models.
It looks like the HCM was introduce to the SPA for 2017 MY on the LED headlamp equipped models.