Rear Fresh Air Blower Control Module (J391)

Rear Fresh Air Blower Control Module (J391)

• For the rear fresh air blower control module to be able to be removed, the entire center console including the base support of center console - A - and insulation mat - B - installed between the base support and rear A/C unit - C - must be removed.






Removing

- Remove the driver and front passenger seat.

- Switch off the ignition.

- Remove the base support of center console - A - and insulation mat - B -.

The heat sink on the rear fresh air blower control module may be hot.

- In the case of vehicles with a rear A/C unit, pull heater core - A - slightly out of the A/C unit due to coolant lines - C - (to create space for installing the rear fresh air blower control module), refer to => [ Rear Heater Core Removal From A/C Unit ] Rear Heater Core Removal From A/C Unit.






- Remove connectors - B - and - C - from the rear fresh air blower control module.






- Remove bolts - A -.

- Remove the rear fresh air blower control module - D -.

Installing

Installation is carried out in the reverse order while observing the following.

- The rear fresh air blower control module as a replacement part is available in different versions. Ensure the correct allocation using Electronic Parts Catalog.

- Install the removed parts in the opposite order.

- Perform the basic setting and the output diagnostic test mode of the A/C system using the Vehicle Diagnostic Tester in the "Guided Fault Finding" function.

- Check the event memory of the rear A/C display control head and the Climatronic control module and erase any displayed malfunctions using the Vehicle Diagnostic Tester in the "Guided Fault Finding" function.