Ford F-150 2001 Climate Control System Workshop Manual page 17

2001 F-150 Workshop Manual
A/C Clutch Relay
C16 CHECK CIRCUIT 883 (PK/LB)
C17 CHECK WAC OUTPUT FROM THE PCM
C18 CHECK CIRCUIT 331 (PK/YE)
http://www.fordtechservice.dealerconnection.com/pubs/content/~WS11/~MUS~LEN/18/...
Measure the resistance between the A/C clutch relay socket pin 5, circuit 321 (GY/WH) and the A/C compressor
clutch field coil C106, circuit 321 (GY/WH).
Is the resistance less than 5 ohms?
Yes
GO to C16.
No
REPAIR Circuit 321(GY/WH). TEST the system for normal operation.
Measure the voltage between the A/C clutch relay socket pin 3, circuit 883 (PK/LB) and ground.
Is the voltage greater than 10 volts?
Yes
GO to C17.
No
REPAIR circuit 883 (PK/LB). TEST the system for normal operation.
Measure the resistance between the A/C clutch relay socket pin 2, circuit 331 (PK/YE) and ground.
Is the resistance less than 5 ohms?
Yes
INSTALL a new A/C clutch relay. TEST the system for normal operation.
No
GO to C18.
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12/14/2010