Pinpoint Tests
PINPOINT TEST A: DTC B1249 — BLEND DOOR FAILURE OR SHORT
Temperature blend door
binding/stuck.
The blower motor does not operate—
manual climate control
Open fuse.
Circuit open/short.
Blower motor (19805).
Function selector switch (19B888).
Blower motor relay (14B192).
GO to Pinpoint Test N.
The blower motor is inoperative—EATC
Open fuse.
Circuit open/short.
Blower motor.
Blower motor speed control
(19E624).
Blower motor relay.
Remote climate control module.
GO to Pinpoint Test O.
The blower motor does not operate
correctly—manual climate control
Circuit open/short.
Blower motor.
Blower motor switch (18578).
Blower motor resistor (19A706).
GO to Pinpoint Test P.
The blower motor operates continuously
in high speed—manual climate control
Circuit short.
Blower motor resistor.
Blower motor switch.
GO to Pinpoint Test Q.
The blower motor operates continuously
in high speed—EATC
Circuit open/short.
Blower motor speed control.
Remote climate control module.
GO to Pinpoint Test R.
No operation in high blower setting—
manual climate control
Circuit open.
Blower motor switch.
Blower motor.
GO to Pinpoint Test S.
No operation in lower speeds—manual
climate control
Circuit open.
Blower motor resistor.
GO to Pinpoint Test T.
No operation in some blower settings—
EATC
Blower motor speed control.
Remote climate control module.
GO to Pinpoint Test U.
The temperature set point does not
repeat after turning the ignition switch
off—EATC
Open fuse.
Circuit open.
Remote climate control module.
REPAIR circuit 385 (WH/RD) or circuit 729 (RD/WH) for an open. If
okay, INSTALL a new remote climate control module.
The temperature display will not switch
between Celsius and Fahrenheit—EATC
Integrated control panel (ICP)
(18C864).
Remote climate control module.
VERIFY correct front defrost and MAX A/C operation. If operation is
correct, INSTALL a new remote climate control module. If operation
is not correct, INSTALL a new ICP.
Test Step Result / Action to Take
A1 CHECK THE BLEND DOOR ACTUATOR CLOCKWISE OPERATION
Disconnect: Remote Climate Control Module C228.
Ignition ON.
Connect a fused jumper wire between RCC module C228 pin 21, circuit 249 (DB/LG) and RCC module C228 pin
11, circuit 729 (RD/WH). Connect a second fused jumper wire between RCC module C228 pin 22, circuit 250
(OG) and RCC module C228 pin 8, circuit 570 (BK/YE).
Does the actuator motor move in the clockwise direction?
Yes
GO to A2.
No
GO to A3.
A2 CHECK THE BLEND DOOR ACTUATOR COUNTERCLOCKWISE OPERATION
Connect a fused jumper wire between RCC module C228 pin 22, circuit 250 (OG) and RCC module C228 pin
11, circuit 729 (RD/WH). Connect a second fused jumper wire between RCC module C228 pin 21, circuit 249
(DB/LG) and RCC module C228 pin 8, circuit 570 (BK/YE).
Does the air bypass door actuator motor move in the closed direction?
Yes
GO to A9.
No
GO to A3.
A3 CHECK THE ACTUATOR CLOCKWISE OPERATION
Remove the door actuator and disengage the actuator drive shaft from the actuator door. Refer to Section 412-
04.
Yes
INSPECT for binding or broken door or linkage. If no
2003 Taurus/Sable Workshop Manual
http://www.fordtechservice.dealerconnection.com/pubs/content/~WS3H/~MUS~LEN/19/
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