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