Section 06
ENGINE MANAGEMENT (DI)
Subsection 04
(DIAGNOSTIC PROCEDURES)
SMR2002-076 _06-04A.FM
06-04-1
DIAGNOSTIC PROCEDURES
0
GENERAL
Here is the basic order suggested to diagnose a suspected fuel injection related problem:
– Check the chart in TROUBLESHOOTING section to have an overview of problems and suggested
solutions.
– Check if there is a MAINT signal reported by the vehicle information center. If so, use the VCK (Vehicle
Communication Kit) and look for fault codes to diagnose the trouble.
– Check all fuses.
– Check air/fuel rail pressure.
– Check spark plugs condition.
– Check RAVE valves if stuck.
– Check fuel pump pressure.
– Check air compressor pressure.
DESS SYSTEM
Basic Self-Diagnostic Mode
It is self-activated when the safety lanyard cap is being installed on the watercraft post. It gives immediate
monitoring. Some codes may occur only when pressing the start/stop button. Refer to the following chart.
SIGNAL
CAUSE
REMEDY
2 short beeps
(while installing safety
lanyard on watercraft
post)
• Safety lanyard is recognized
by the MPEM.
• Good contact between safety
lanyard cap and DESS post.
• Ignition is authorized, engine can be started normally.
1 long beep
(while installing safety
lanyard on watercraft
post or when pressing
start/stop button)
• Bad connection between safe-
ty lanyard cap and post.
• Remove and replace the safety lanyard on the post
until 2 short beeps are heard to indicate the system
is ready to allow engine starting.
• Unprogrammed or defective
safety lanyard.
• Use the safety lanyard that has been programmed for
the watercraft. If it does not work, check safety lan-
yard condition with the programmer. Replace safety
lanyard if reported defective. If it still does not work,
enable advanced diagnostic mode to obtain more de-
tails about the failure.
• Salt water or dirt in safety
lanyard cap.
• Clean safety lanyard cap to remove dirt or salt water.
• Improper operation of MPEM
or defective wiring harness.
• Enable advanced diagnostic mode to obtain more de-
tail about the failure.
8 short beeps
• Defective MPEM
(memory).
• Replace MPEM.
Other beeps
• Refer to COMPONENT FAILURE WARNING SYSTEM
below.
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