Blower Motor Malfunction

Blower Motor Malfunction

Test Description

The number below refers to the step number on the diagnostic table.

3. Test the Low, Med 1, Med 2 and High blower motor control circuits for an open, short to voltage, short to ground or high resistance. The High speed blower motor control circuit is spliced to the Blower motor voltage supply circuit. The Blower motor voltage supply circuit should be checked also.