Ford Taurus 2003 - Pinpoint Test N: Blower Motor Not Operating (Manual)

PINPOINT TEST N: THE BLOWER MOTOR DOES NOT OPERATE — MANUAL CLIMATE CONTROL
 Is voltage present?
M11 CHECK FOR A BINDING, STUCK OR BROKEN BLEND DOOR
 Ignition OFF.
 Remove the actuator. Refer to Section 412-04.
 Inspect for a binding, stuck or broken blend door or linkage.
 Is there a binding, stuck or broken blend door or linkage condition?
Yes
REPAIR the blend door/linkage. REFER
to Section 412-04. TEST the system for
normal operation.
No
INSTALL a new temperature blend door
actuator. REFER to Section 412-04. TEST
the system for normal operation.
Test Step Result / Action to Take
N1 CHECK THE BLOWER MOTOR
 Ignition OFF.
 Disconnect: Blower Motor C2004.
 Connect battery voltage and ground to the blower motor.
 Does the blower motor operate?
Yes
GO to N2.
No
INSTALL a new blower motor (19805). TEST the system
for normal operation.
N2 CHECK FOR VOLTAGE TO THE BLOWER MOTOR
 Ignition ON.
 Place the function selector switch in the floor position.
 Measure the voltage between the blower motor C2004, circuit 371 (PK/WH) and ground.
 Is the voltage greater than 10 volts?
Yes
GO to N3.
No
GO to N4.
N3 CHECK THE BLOWER MOTOR GROUND
 Ignition OFF.
 Disconnect: Blower Motor Resistor C293.
 Measure the resistance between the blower motor resistor C293 pin 2, circuit 261 (OG/BK) and the blower motor
C2004, circuit 261 (OG/BK).
 Is the resistance less than 5 ohms?
Yes
REPAIR circuit 57 (BK). TEST the system for normal
operation.
No
REPAIR circuit 261 (OG/BK). TEST the system for
normal operation.
N4 CHECK CIRCUIT 371 (PK/WH)
 Disconnect: Blower Motor Relay C2017.
 Measure the resistance between the blower motor C2004, circuit 371 (PK/WH) and the blower motor relay C2017
Yes
GO to N5.
Page
36
of
47
2003 Taurus/Sable Workshop Manual
11/22/2011
http://www.fordtechservice.dealerconnection.com/pubs/content/~WS3H/~MUS~LEN/19/
...