2003 Ford Taurus Q&A
2003 Ford Taurus Question: heater
Vehicle Application: 2003 Ford Taurus 3.0L, FLEX, Vin 2 Customer Concern: The blower motor is inoperative. Tests/Procedures: 1. Check for power to the blower motor on the Pink/White (PK/WH) wire with the ignition switch in the Run position. 2. If there is no power to the blower motor on the PK/WH wire, check Fuse 28 (10 amp) and fuse 08 (40 amp) of the Central Junction Box (CJB) for a blown, missing, or poorly connected fuse. 3. If the fuses are OK, remove the blower motor relay and verify that two terminals indicate battery voltage with the key on. Terminal 86 of the relay is supplied a ground from the control switch. 4. Install a jumper between terminal 30 and 87. If the blower motor starts to work, terminal 85 of the relay shows power and terminal 86 indicates to be a ground, replace the blower motor relay. 5. If power is present at the blower motor on both circuits with the blower motor connected, access the blower motor resistor located close to the blower motor and verify that the Black (BK) wire indicates to be a ground. 6. If the BK wire indicates a good ground but all or some of the other circuits indicate battery voltage, the blower motor resistor is defective. 7. If there is a presence of water at the resistor, refer to TSB 04-15-3 to seal water away from the blower motor and resistor area. Potential Causes: Defective Blower Motor Defective Blower Motor Relay Blower Motor Resistor Burnt Fuse Switch Circuit Tech Tips: Technical Service Bulletin (TSB) 04-15-3 relates to a water leak in the cowl area, which allows water entry into the heater case and will result in the loss of some or all of the blower motor function. - backyard tech
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