Blower Motor Always On
TEST DESCRIPTIONSteps 1-11:
The number(s) below refer to the step number(s) on the diagnostic table.
4. The mode switch actuates the blower motor relay by applying voltage to the coil side of the relay through the blower motor relay supply voltage circuit. If the test lamp illuminates with the mode switch OFF, the source of the concern is either short to voltage on the blower motor relay supply voltage circuit or a malfunctioning mode switch.