There is no need to wait for symptoms: the point of the harness is to prevent the failure
It installs in minutes as a temporary or permanent fix
Volvo's 2021 follow-up bulletin also instructs installing 32241228 whenever an SPA evaporator is replaced
2019-2020 Volvo V60 and V60 Cross Country
set the gap filler onto the glass at the junction
Volvo - Wiring Adapter 32241228 - AC Preventive Repair (SPA V90, XC90, S90, V60, S60) There is no need toWhat the 32241228 wiring adapter does Some SPA platform Volvos can overcool the AC evaporator. Repeated overcooling stresses the evaporator core until it cracks, the refrigerant escapes, and the AC stops cooling. Volvo documented the fault in a 2019 Technical Journal and issued a fix: an in line jumper harness, part number 32241228, that adds a 1K ohm (1000 ohm) resistor to the circuit so the core no longer reaches the failure mode. This adapter