Blower Motor Amperage Draw Test
WARNING: This page is about a different car, the 1997 Ford Ranger. However, it is still accessible from the selected car via links, so may be relevant.
- Disconnect wiring harness at blower motor. Connect positive lead of 18-amp (minimum) DC test meter to blower motor positive terminal and negative lead to corresponding wire. Connect jumper wire from negative motor terminal to ground wire in harness.
- Adjust temperature control knob to warm position and function control knob to panel position. Start engine, and operate blower motor through entire speed range. Compare ammeter readings with specifications listed in BLOWER MOTOR TEST SPECIFICATIONS table. Disconnect all test leads, and reconnect wiring harness.