Ford Corsar Repair Manual page 215

TROUBLE DIAGNOSES
DIAGNC
AIR CONDITIONER CLU'
STlC PROCEDURE 9
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%H CONTROL (WHERE A/C IS FITTED).
With engine running, check ECU pin 36
while switching AIC on.
Measure voltage at ECU pin 10
with AIC switched off this will be
12 volts. If not check ignition fuse.
Now switch AIC on and measure ECU
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More than 2 volts.
Less than 2 volts
with AIC switch on.
Check AIC fuse.
Check Hi and Lo
pressure switch.
Check thermo amp.
More than 2 volts
with AIC switch on.
1
Check AN101 for short to 12 volts.
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If ok, replace ECM.
.
Less than 2 volts.
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Check AIC relay.
Check AIC compressor.
AN
141
AC REOUEST
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ECM
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e
7
m m M o AMP
1
10 LOW
AND HIGH
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PRESSURE WITCH
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