PINPOINT TEST M: NO OPERATION IN ALL TEMPERATURE SETTINGS—MANUAL CLIMATE CONTROL
Is the voltage greater than 10 volts?
L7 CHECK FOR VOLTAGE TO THE A/C COMPRESSOR CLUTCH FIELD COIL
Ignition OFF.
Disconnect: A/C Compressor Clutch Field Coil C100.
Ignition ON.
Measure the voltage between the A/C compressor clutch field coil C100, circuit 347 (BK/YE)
and ground.
Is the voltage greater than 10 volts?
Yes
GO to
L8
.
No
GO to
L9
.
L8 CHECK CIRCUIT 347 (BK/YE)
Ignition OFF.
Disconnect: A/C Control Relay.
Ignition ON.
Measure the voltage between the A/C compressor clutch field coil C100, circuit 347 (BK/YE)
and ground.
Is the voltage greater than 10 volts?
Yes
REPAIR circuit 347 (BK/YE). TEST the system for normal operation.
No
INSTALL a new A/C control relay. TEST the system for normal operation.
L9 CHECK THE A/C COMPRESSOR CLUTCH AIR GAP
Ignition OFF.
Measure the A/C compressor clutch air gap at three equally spaced locations between the
clutch hub and the A/C compressor clutch pulley.
Is the A/C compressor clutch air gap greater than 0.75 mm (0.030 in)?
Yes
ADJUST the A/C compressor clutch field coil. REFER to
Air Conditioning
(A/C) Clutch Air Gap Adjustment
in this section. TEST the system for normal
operation.
No
INSTALL a new A/C compressor clutch field coil. REFER to
Section 412-03
.
TEST the system for normal operation.
Test Step
Result / Action to Take
M1 CHECK THE VOLTAGE TO THE TEMPERATURE BLEND DOOR ACTUATOR MOTOR
Ignition OFF.
Disconnect: Temperature Blend Door Actuator Motor C289.
Ignition ON.
Measure the voltage between the temperature blend door actuator C289 pin 7, circuit 1087 (OG) and ground.
Yes
GO to
M2
.
No
REPAIR circuit 1087 (OG). TEST the
system for normal operation.
Page 33 of 47
2003 Taurus/Sable Workshop Manual
11/22/2011
http://www.fordtechservice.dealerconnection.com/pubs/content/~WS3H/~MUS~LEN/19/...
