Blower Motor: Description and Operation

SUPPRESSOR FILTER - REAR BLOWER MOTOR

Rear Blower Motor Suppression Filter:

The two interference suppression filters for the two rear blower motors protects the rear A/C control circuits and the vehicles electrical system from voltage spikes which may be generated by the two blower motors or the three rear blower motor relays. The suppression filters also impede the propagation of RF interference into the vehicles electrical system by the rear blower motors to ensure interference-free radio reception.

The rear blower motor suppression filters are located near the rear blower motors in the rear A/C evaporator housing.

The rear blower motor suppression filters provide protection against transient interference signals or similar interference to the electronic rear blower motor circuits which can effect the performance of the rear A/C control module circuits and radio reception quality. The suppression filters for the rear blower motors consist of capacitors and inductance coils.

The rear blower motor suppression filters cannot be repaired and, if faulty or damaged, they must be replaced. Refer to the appropriate wiring information for complete HVAC wiring diagrams.