Should the interior blower fail partially or completely in above vehicle, a defective electric blower controller might be the cause.
In case of a defective electronic blower controller, the functioning of individual or of all blower levels could be impacted. The fuses should initially be checked. The controller itself is installed in the passenger footwell area and can be easily uninstalled by removing two screws. Using a circuit diagram and multimeter, it is possible to check with the 3-pin plug of the blower controller in how far the power supply is working.
Should you recognize traces of overheating (image) on the plastic housing, this can already be an indication of a defective controller.
Important safety note
Technical information and practical tips have been compiled by HELLA in order to provide professional support to vehicle workshops in their day-to-day work. The information provided on this website is intended for use by suitably qualified personnel only.
Reprinting, distribution, reproduction, exploitation in any form or disclosure of the contents of this document, even in part, is prohibited without our express, written approval and indication of the source. The schematic illustrations, pictures and descriptions serve only for the purposes of explanation and representation of the instructions and cannot be used as a basis for installation or assembly work. All rights reserved.
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