Section 05 ELECTRICAL SYSTEM
Subsection 03 (IGNITION SYSTEM)
smr2009-032-001_a
IGNITION COIL ACTIVATION
1. Activation tab
2. ECM tab
3. Click on the desired ignition coil
You should hear the spark occurring. If in doubt,
use a sealed
vapor proof
spark tester — available
from tool suppliers — to prevent a spark from oc-
curring in the bilge. If there is no spark, carry out
the following checks.
NOTE:
Keep in mind that even if the tester indi-
cates that there is a spark during this static test,
the voltage required to produce a spark in the
combustion chamber is higher when the engine
is running. The ignition coil or spark plug may
not be functioning properly during actual engine
operation. Replacing the ignition coil or spark
plug may be necessary as a test.
If there is no ignition at one or more coils, carry
out a
IGNITION COIL INPUT VOLTAGE TEST
.
Ignition Coil Input Voltage Test
Disconnect the desired ignition coil connector.
Remove safety lanyard from the D.E.S.S. post.
Press the START button to activate the ECM.
Use the
FLUKE 115 MULTIMETER (P/N 529 035 868)
.
Select Vdc.
Measure voltage as per following table.
TEST PROBES
VOLTAGE
VI/BU wire
(ignition coil no. 1)
VI/GN wire
(ignition coil no. 2)
VI/OR wire
(ignition coil no. 3)
Battery
ground
Battery
voltage
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IGNITION COIL INPUT VOLTAGE TEST
If test succeeded, refer to
IGNITION COIL
POWER CIRCUIT TEST
.
If test failed, refer to
IGNITION COIL CONTROL
CIRCUIT TEST
.
Ignition Coil Power Circuit Test
Remove cover of fuse box #1. Refer to
POWER
DISTRIBUTION
subsection.
Remove the long bus bar.
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1. Long bus bar
Use the
FLUKE 115 MULTIMETER (P/N 529 035 868)
and select
.
Read resistance of the desired ignition coil circuit.
IGNITION
COIL
IGNITION
COIL WIRE
FUSE BOX
#1
MEASUREMENT
1
(rear)
VI/BL
Terminal
C11
2
VI/GN
Terminal C9
3
VI/OR
Terminal C7
Close to 0
smr2009-032
291
Summary of Contents for GTX Limited iS 255 2009
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