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.
2003 Taurus/Sable Workshop Manual
http://www.fordtechservice.dealerconnection.com/pubs/content/~WS3H/~MUS~LEN/19/
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