Ford Corsar Repair Manual page 360

TROUBLE DIAGNOSES
1
KA24E
I
Diagnostic Procedure 38
A.A.C. VALVE (Not self-diagnostic item)
CHECK OVERALL FUNCTION INSPECTION END
1) Start engine and warm it up
sufficiently.
2) Check idle speed.
MD: 850
+
50 rpm
A D : 850
+
50
rpm
If N.G., adjust idle speed.
3) Disconnect throttle sensor har-
ness connector.
4) Make sure that idle speed
drops.
Does not drop
Ivl
@
0.
CHECK COMPONENT Replace throttle sensor.
(Throttle sensor).
Refer to "Electrical Components
Inspection".
FSEF9221
(See page ES-2 16)
CHECK POWER SUPPLY.
E R
1) stop engine.
5
Check the following:
Harness connectors
2) Disconnect A.A.C. valve har- e 10A fuse
ness connector.
8
Harness continuity between
3) Turn ignition switch "ON". A.A.C. valve and fuse
4) Check voltage between termi-
If N.G., repair harness or con-
nal b) and ground nectors.
Voltage: Battery voltage
. .
SEF9921
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z :
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- - - - - - -
- A -
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-
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:r-,,
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,
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3;
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8
' 1 - 1 2
l>
SEF1621
CHECK OUTPUT SIGNAL CIR-
CUIT.
1) Turn ignition switch "OFF"
2) Disconnect E.C.U. harness
connector.
3) Check harness continuity be-
tween E.C.U. t e r m i n a l m a n d
terminal
@.
Continuity should exist.
. .
5
Repair harness or connectors.