Control, blower motor switch on dash comes on only on high (5)when ever it wants too! Removed switch and jumped hot wire....switch works fine! Schematics shows blower motor relay is the next victim to trouble shoot....where is that relay located!? Thanx
Control, blower motor switch on dash on 2002 Pontiac Grand Am
Most likely it is the Blower Motor resistor pack that has failed. Hopefully your year/model Pontiac will still use a traditional resistor pack. Some of the newer models went to a fan module design ( Over engineering ) and can be expensive.