Blower Motor Malfunction

Blower Motor Malfunction

Test Description

Step 1 - Step 10:

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 blower motor control circuit uses the body control module (BCM) as a junction block. Be sure to check all 3 high blower motor control circuits.