Section07ELECTRICALSYSTEM
Subsection 05 (DIGITALLY ENCODED SECURITY SYSTEM (DESS))
SELF-DIAGNOSTIC MODE
It is self-activated when the safety lanyard cap is being installed on the watercraft switch. It gives imme-
diate monitoring. Refer to the following chart.
717 Engines
CODED SIGNAL POSSIBLE CAUSE REMEDY
2 short beeps
(while installing safety
lanyard on watercraft post).
• Confirms safety lanyard signal
operation.
• Engine can be started.
• Water temperature sensor or
circuit malfunction.
• Refer to COOLING SYSTEM.
2 seconds beep
every 15 minutes
intervals.
• Starter solenoid circuit
malfunction.
• Refer to STARTING SYSTEM.
4 short beeps
every 3 seconds
interval for 2 hours.
• Safety lanyard has been left on
its post without starting engine or
after engine was stopped.
• To prevent battery discharge,
remove the safety lanyard from its
post.
Continuous beep
• Engine overheats.
• Refer to COOLING SYSTEM.
• Bad DESS system connection.
• Reinstall safety lanyard cap
correctly over post.
• Wrong safety lanyard. • Use a safety lanyard that has been
programmed for the watercraft.
• Defective safety lanyard. • Use another programmed safety
lanyard.
• Dried salt water or dirt in safety
lanyard cap.
• Clean safety lanyard cap to
remove dried salt water or dirt.
1 long beep
(while installing safety
lanyard on watercraft post or when
pressing start/stop button).
• Defective DESS post.
• Improper operation of MPEM or
defective wiring harness.
• Verify harness and connectors.
• Try a new MPEM.
787 RFI Engines
CODED SIGNAL POSSIBLE CAUSE REMEDY
2shortbeeps
(while installing safety
lanyardonpost).
• Confirms safety lanyard signal
operation.
• Engine can be started.
• Bad DESS system connection.
• Reinstall safety lanyard cap
correctly over post.
• Wrong safety lanyard. • Use a safety lanyard that has been
programmed for the watercraft.
• Defective safety lanyard. • Use another programmed safety
lanyard.
• Dried salt water in safety lanyard
cap.
• Clean safety lanyard cap to
remove salt water.
1 long beep
(while installing safety
lanyard on watercraft post.
• Defective DESS post.
• Improper operation of ECM or
defective wiring harness.
• Refer to DESS SYSTEM AND
ENGINE MANAGEMENT.
A
2 seconds beep
every 1 minute
intervals.
• Starter relay problems or engine
circuit problem.
• Refer to ENGINE MANAGEMENT.
A
2 seconds beep
every 5 minutes
intervals.
• Fuel tank level is low or open
circuit.
• Refill. If problem persists, refer to
FUEL SYSTEM.
214 smr2005-072
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