Sea-Doo GTX Limited iS 2009 Инструкция по эксплуатации онлайн [247/555] 12053
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Sea-Doo GTX Limited iS 2009 Инструкция по эксплуатации онлайн [247/555] 12053

Sea-Doo GTX Limited iS 2009 Инструкция по эксплуатации онлайн [247/555] 12053
Section 04 FUEL SYSTEM
Subsection 02 (ELECTRONIC FUEL INJECTION (EFI))
ECM Power Supply Troubleshooting
ECM Power Supply Diagram
Battery
Fuse F17
A1
Bus bar (Vdc)
B2
ECM
Switched
power
Signal
B-M4
Wake up
D2
Start switch
B-L1, B-M2, B-M3
Relay
B12
A10
Fuse F21
Bus bar (Vdc)
B5
2
Fuse F20
D1
1
B7 B8
D6
FB#2
D4
D3
A4
Bus bar (ground)
E9, E11, E10
A12
B10
B-H2
B-D1
FB#2
FB#2
FB#1
FB#2
FB = Fuse box
FB#2
FB#2
smr2009-030-001_en
ECMWakeUpBasics
When the START button is depressed:
– ECM pin B-D1 receives current from battery via
the START switch. ECM is woken up.
– ECM pin B-H2 provides a ground to the relay
coil in fuse box #2 (FB).
– The relay contacts close and fully powers the
ECM at pin B-M4.
– The relay also powers the other components in
the electrical system.
– ECM pin B-E4 monitors if a key is present.
– When a key is installed, the magnet in the key
closes the reed switches in the D.E.S.S. post
and the ECM pin B-F2 provides a ground. This
tell the ECM a key is present.
– ECM pin B-B2 reads the D.E.S.S. key and de-
termines if it is valid. If so, the engine can be
started.
ECM Shut Down Basics
When engine is running and Stop button is de-
pressed:
– ECM stops the engine.
– After 5 seconds, the information center turns
off.
– After 60 seconds, ECM pin B-H2 removes the
ground to the relay coil.
– Relay contacts open and power to the ECM is
cut.
– Power is cut on all the electrical system except
the GPS supply in the information center.
When engine is running and the D.E.S.S. key is
removed from its post:
– ECM stops the engine.
– After 5 seconds, the information center turns
off.
– After 10 seconds, ECM pin B-H2 removes the
ground to the relay coil.
– Relay contacts open and power to the ECM is
cut.
– Power is cut on all the electrical system except
the GPS supply in the information center.
When engine is not running and the START button
is briefly pressed without starting engine:
– The information center turns on and remains on
until ECM turns off.
– When there is no D.E.S.S. key installed, ECM
pin B-H2 removes the ground to the relay coil
after 3 minutes.
– When a D.E.S.S. key installed, ECM pin B-H2
removes the ground to the relay coil after 4 min-
utes.
– Relay contacts open and power to the ECM is
cut.
– Power is cut on all the electrical system except
the GPS supply in the information center.
ECM Power Supply Validation
Briefly press the START button.
This should wake up the ECM and continuously
activate the relay in FB#2.
QUICK I
NDICATION THAT ECM IS NOT POWERED
(assuming the observed component is working)
Information center does not turn on.
Fuel p
ump does not turn on for approximately 5
seconds.
Throttle actuator does not initialize.
If ECM does not turn on, check the following:
– Fuses F16, F17 and F20 in fuse box #2 (FB)
–Batt
ery voltage. Refer to
CHARGING SYSTEM
– The power bus bars in FB#1 and FB#2
– The ground bus bar in FB#2
224 smr2009-030

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