Section 05 ELECTRICAL SYSTEM
Subsection 03 (IGNITION SYSTEM)
smr2009-030-015_h
If test succeeded, wiring and connectors are func-
tional.
If test failed, repair/replace wiring from fuse box
terminal to ignition coil.
Reinstall bus bar and cover.
Ignition Coil Control Circuit Test
Disconnect ECM connector "A". Refer to
ELEC-
TRONIC FUEL INJECTION
.
Install ECM connector on the
ECM ADAPTER TOOL
(P/N 529 036 166)
.
529036166
Disconnect ignition coil connector.
Test for continuity of circuit as per following table.
COIL
IGNITION COIL
WIRE
ECM
ADAPTER
RESISTANCE
Cylinder 1
(rear)
BR/BK
A-M4
Cylinder 2
BR/OR
A-M2
Cylinder 3
BR/YL
A-M1
Close to 0
(continuity)
smr2007-023-003_d
IGNITION COIL CONTROL CIRCUIT TEST
If test failed, repair the connector or replace the
engine wiring harness.
If test succeeded, wiring and connectors are func-
tional.
Ignition Coil Resistance Test
An ignition coil with a good resistance measure-
ment can still be faulty. Current leakage can occur
at high voltage levels which is not detectable with
an ohmmeter. Replacing the ignition coil may be
necessary as a test.
Remove ignition coil. Refer to
IGNITION COIL RE-
MOVAL
below.
Perform a visual inspection of ignition coil for cor-
rosion.
Using a multimeter, test the resistance in both pri-
mary and secondary windings.
smr05-015-002_a
PRIMARY WINDING
CIRCUIT
TERMINAL
RESISTANCE @
20°C (68°F)
Primary
winding
1 and 2
0.85 - 1.15
292
smr2009-032
Summary of Contents for GTX Limited iS 255 2009
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