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Section 06 ELECTRICAL SYSTEM
Subsection 01 (IGNITION SYSTEM)
The ignition switch receives 12 Vdc directly from
the ECM fuse (F1). When the ignition switch is
set to ON (with or without headlights), it sends a
power signal to the ECM through the engine stop
switch (RUN position). This wakes up the ECM
which then waits for the START switch signal to
engage the starter, and control ignition timing for
proper engine operation.
If the engine is running and the ignition switch is
turned to the OFF position, ignition will cease im-
mediately, the engine will shut down, but the ECM
will maintain power on the vehicle for 30 seconds.
Ignition Switch Input Voltage Test
Remove console, refer to the
BODY
section.
Disconnect the ignition switch connector.
vmr2008-137-001_a
Set the Fluke 111 multimeter (P/N 529 035 868)
to Vdc.
Measure the ignition switch input voltage as fol-
lows.
IGNITION SWITCH INPUT VOLTAGE TEST
IGNITION SWITCH
CONNECTOR
VOLTAGE
Pin “C” (BE wire) Battery ground
Battery voltage
vmr2008-137-001_b
IGNITION SWITCH INPUT VOLTAGE TEST
If you do not obtain battery voltage, test the fol-
lowing:
– Main fuse F8
– ECM fuse F1
– Wiring harness.
If ignition switch input voltage is good, test the
following:
– Ignition switch continuity
– Engine stop switch
– Wiring and connectors.
Ignition Switch Continuity Test
Set the Fluke 111 multimeter (P/N 529 035 868)
to
.
Measure the resistance through the ignition
switch between the following pins.
NOTE:
Connector pins “B” and “E” are not used.
IGNITION SWITCH CONTINUITY TEST
IGNITION
SWITCH
POSITION
IGNITION
SWITCH PINS
RESISTANCE
Pins “A” to “F”
OFF
Pins “C” to “D”
Infinite (OL)
Pins “A” to “F”
ON
(w/lights)
Pins “C” to “D”
0.2 ± 0.2
max.
Pins “A” to “F”
Infinite (OL)
ON
(w/o lights)
Pins “C” to “D”
0.2 ± 0.2
max.
vmr2008-137-001_c
IGNITION SWITCH CONTINUITY TEST
Replace switch if defective.
Ignition Switch Removal
Remove the console, refer to the
BODY
section.
Disconnect the ignition switch connector.
vmr2008-137
259
Содержание Outlander 400 EFI 2008
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