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?
condition is found, INSTALL a new door actuator. REFER
to
Section 412-04
. TEST the system for normal operation.
No
GO to
A4
.
A4 CHECK THE 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
INSPECT for binding, broken door or linkage. If no
condition is found, INSTALL a new door actuator. REFER
to
Section 412-04
. TEST the system for normal operation.
No
GO to
A5
.
A5 CHECK CIRCUITS 249 (DB/LG) AND 250 (OG) FOR A SHORT TO GROUND
Disconnect: Temperature Blend Door Actuator C289.
Measure the resistance between RCC module C228 pin 21, circuit 249 (DB/LG) and ground. Measure the
resistance between RCC module C228 pin 22, circuit 250 (OG) and ground.
Are the resistances greater than 10,000 ohms?
Yes
GO to
A6
.
No
REPAIR the affected circuit for a short to ground. TEST
the system for normal operation.
A6 CHECK CIRCUIT 249 (DB/LG) AND 250 (OG) FOR A SHORT TO POWER
Ignition ON.
Measure the voltage between RCC module C228 pin 21, circuit 249 (DB/LG) and ground. Measure the voltage
between RCC module C228 pin 22, circuit 250 (OG) and ground.
Is voltage present?
Yes
REPAIR the affected circuit for a short to power. TEST the
system for normal operation.
No
GO to
A7
.
A7 CHECK CIRCUITS 249 (DB/LG) AND 250 (OG) FOR AN OPEN
Ignition OFF.
Measure the resistance between RCC module C228 pin 21, circuit 249 (DB/LG) and the temperature blend door
actuator C289 pin 7, circuit 249 (DB/LG). Measure the resistance between RCC module C228 pin 22, circuit 250
(OG) and the temperature blend door actuator C289 pin 8, circuit 250 (OG).
Yes
GO to
A8
.
No
REPAIR the affected circuit for an open. TEST the system
for normal operation.
Page 9 of 47
2003 Taurus/Sable Workshop Manual
11/22/2011
http://www.fordtechservice.dealerconnection.com/pubs/content/~WS3H/~MUS~LEN/19/...
