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Home >> Ford >> 2006 >> Taurus V6-3.0L VIN U >> Repair and Diagnosis >> Heating and Air Conditioning >> Testing and Inspection >> Pinpoint Tests >> Test M: The Blower Motor Does Not Operate - Manual Climate Control
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Test M: The Blower Motor Does Not Operate - Manual Climate Control

PINPOINT TEST M: THE BLOWER MOTOR DOES NOT OPERATE - MANUAL CLIMATE CONTROL


M1:






M1-M3:






M4-M6:






M7-M9:






Normal Operation
Under normal operation, the blower motor relay coil receives ignition voltage through circuit 1001 (WH/YE). The coil receives ground from the function selector switch through circuit 275 (YE) if any position but OFF is selected. The function selector switch is grounded through circuit 57 (BK). Voltage is supplied to the relay switch contact through circuit 687 (GY/YE). When the relay coil is energized, voltage is delivered to the blower motor through circuit 371 (PK/WH). Ground for the blower motor is provided through circuit 261 (OG/BK) from the blower resister or the blower switch (HI). The blower resister and blower switch is grounded through circuit 57 (BK).

Possible Causes
- An open in circuit 57 (BK), 261 (OG/BK), 275 (YE), 371 (PK/WH), 687 (GY/YE) or 1001 (WH/YE)
- Fuse(s)
- Blower motor
- Blower motor relay
- Function selector switch
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