Ignition Coil Secondary Resistance Test - Ford LSG 875 Service Manual

2-11 IGNITION SYSTEM
2-11
DIAGNOSIS AND TESTING (Continued)
,
#
BALLAST RED
RESISTOR
I 1
A*.
-
WHITE
b
0
STARTER RELAY
IGNITION
GREEN
MODULE
TEST STEP
RESULT
ACTION TO TAKE
8 DISTRIBUTOR STATOR ASSEMBLY WIRING
HARNESS
1. Attach one VOM lead to distributor base.
2. Alternately measure resistance between wiring
harness terminals mating with ORANGE and
PURPLE module wires and ground.
3. Reconnect four wire connector.
Greater than 70,000 ohms Test result OK.
GO to 9.
Less than 70,000 ohms
Inspect wiring harness
between module
connector and
distributor, including
distributor grommet.
DISTRIBUTOR
9 IGNITION COIL SECONDARY RESISTANCE
1. Disconnect and inspect ignition coil connector and
7,700 to 10,500 ohms
Test result OK.
coil wire.
GO to 10.
2. Measure secondary resistance from BAlT terminal
.
to high voltage terminal.
Less than 7,000 ohms or
Replace ignition coil.
3. Reconnect ignition coil wire.
greater than 10,500 ohms
' BATI-