Sea-doo GTX Limited iS 255 2009, Shop Manual

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Section 04 FUEL SYSTEM
Subsection 02 (ELECTRONIC FUEL INJECTION (EFI))
It is important to ensure that the mechanical in-
tegrity of the engine/propulsion system are intact.
For diagnostics purposes, use B.U.D.S. software.
See
COMMUNICATION TOOLS AND B.U.D.S.
SOFTWARE
subsection.
After a problem has been solved, ensure to clear
the fault(s) in the ECM using the B.U.D.S. soft-
ware.
WARNING
All electrical actuators and electronic mod-
ules are powered as soon as the START
button is depressed. Always disconnect the
battery prior to disconnecting any electrical
or electronic parts.
Never use a battery charger to substitute tem-
porarily the battery, as it may cause the ECM
to work erratically or not to work at all. Check
related-circuit fuse solidity and condition with an
ohmmeter. Visual inspection could lead to false
results.
IMPORTANT: Use genuine wires only. Otherwise
wires will not fit properly.
Electrical Related Problems
It is important to check the following in the elec-
trical system:
– Battery voltage
– Fuses
– Bus bar condition in fuse boxes
– Ground connections
– Wiring connectors.
Ensure that all electronic components are gen-
uine. Any modification on the wiring harness may
lead to generate fault codes or bad operation.
Electrical Connections
Pay particular attention to ensure that terminals
and pins are not out of their connectors or out of
shape.
When probing terminals, pay attention not to bend
the terminal as this could bring a loose connection
that would be difficult to troubleshoot.
PROCEDURES
ENGINE CONTROL MODULE
(ECM)
ECM Connector Access
NOTE: For connector information, cleaning and
probing, refer to
WIRING DIAGRAM
subsection.
Open seat.
Remove rear ventilation box. Refer to
AIR INTAKE
SYSTEM
.
Remove deck extension. Refer to
BODY
.
smr2009-030-025_a
1. ECM
2. ECM connectors
ECM Connector Identification
There are 2 connectors connected to the ECM.
The engine harness female connector is con-
nected on the module male connector A and the
vehicle system control harness female connector
is connected to the module male connector B.
The ECM connectors have 48 pins.
smr2009-027-005
ECM CONNECTORS
smr2009-030
223