Blower Motor Circuit [03/2017 - 10/2020]: Description

The blower motor with fan sub-assembly is operated by signals from the air conditioning amplifier assembly. Blower motor speed signals are transmitted in accordance with changes in the duty ratio.

If the airflow volume is low or the blower speed cannot be changed, the following suspected areas may be the cause.

Symptom	Factor
Airflow volume is low Airflow volume cannot be changed	Air conditioning amplifier assembly malfunction Blower motor with fan sub-assembly malfunction Air conditioning control panel (radio and display receiver assembly) malfunction1 Air conditioning control assembly malfunction2 Clogged clean air filter Clogged No. 1 evaporator sub-assembly or heater radiator unit sub-assembly fins Harness or connector

*1: for 8 Inch Display
*2: for 7 Inch Display