Fresh Air Blower -V2- WITH Fresh Air Blower Control Module -J126-, NOTES
Currently an Auxiliary Heater Heating Element -Z35- is also installed on vehicles with a high voltage system (hybrid vehicles) and a gasoline engine. Refer to ELECTRICAL AUXILIARY HEATER ACTIVATION, CHECKING .
For vehicles with a gasoline engine, the electric auxiliary heater (the Auxiliary Heater Heating Element -Z35-) is activated by the Climatronic Control Module -J255- control head via the local data bus (activated via the same outlet and also via the Fresh Air Blower Control Module -J126-) on the Auxiliary Air Heater Control Module -J604-. If there is a complaint with these vehicles, check the Fresh Air Blower Control Module -J126- or Fresh Air Blower -V2- and the Auxiliary Air Heater Control Module -J604-. Use the Vehicle Diagnostic Tester in the "Guided Fault Finding" function and Refer to the Appropriate Wiring Diagram.
Make sure to use the correct version of the Fresh Air Blower Control Module -J126-. For vehicles with a high voltage system (hybrid vehicles) and gasoline engines, additional information is sent to activate the Auxiliary Air Heater Control Module -J604-, for example via the local Data Bus. Refer to the Parts information.