Operation CHARM: Car repair manuals for everyone.

Blower Inoperative In Floor Position

The engine temperature must be over 43° C (110° F). Unplug the electrical connector from the Thermal Blower Lockout (TBL) switch. Short across the two terminals of the harness connector. If the blower comes on, replace the TBL switch. If the blower does not come on, there is an open between the selector switch and the TBL switch. Refer to the Blower Motor Controller Functional Test. Blower Motor Controller Functional Test