Ford Corsar Repair Manual page 343

TROUBLE DIAGNOSES
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Diagnostic Procedure 27
IGNITION SIGNAL (Code No. 21)
m
INSPECTION START
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CHECK POWER SUPPLY. N.G.
,
1) Disconnect ignition coil har-
ness connector.
2) Turn ignit~on switch "ON".
3) Check voltage between termi-
nal @and ground.
S E C ~ ~ O B
Voltage: Battery voltage
Check the following:
Harness connectors
Harness continuity between
ignition switch and ignition
coil
If N.G., repair harness or con-
nectors.
~ i j
CHECK GROUND CIRCUIT
N.G.
,
Repair harness or connectors.
1) Turn ignition switch
"OFF".
2) Disconnect power
transistor harness
connector and resistor
and condenser harness
connector.
3) Check harness continuity
between terminal @and
~ ~ ~ 9 2 8 1
power transistor terminal
•
S E F ~ Z ~ I
-
D/UNIT
1 0 1
CONNECTOR
SEF9301
$nd resistor terminal
Continuity should exist.
4) Check harness continu~ty
between ower transistor
terminal h a n d engine
ground.
Continuity should exist.
CHECK E.C.U. INPUT SIGNAL N.G. Repair harness or connectors.
CIRCUIT
1) Disconnect E.C.U. harness
connector.
2) Check harness continuity
between E.C.U. terminal
@
and resistor terminal
@.
Continuity should exist.