Section 03 TROUBLESHOOTING
Subsection 01 (TROUBLESHOOTING CHART)
TROUBLESHOOTING CHART
The following is provided to help in diagnosing the probable source of troubles. It is a guideline and
should not be assumed to show all causes for all problems.
NOTE: On fuel injection models, always check for fault codes. If a fault code is detected, service the
fault code and recheck operating conditions. Refer to DIAGNOSTIC PROCEDURES in ENGINE MAN-
AGEMENT section.
ENGINE WILL NOT START
OTHER OBSERVATION POSSIBLE CAUSE REMEDY
Wrong safety lanyard Use one that has been programmed
DESS operation non functional
If 2 short beeps are not heard when
installing safety lanyard, refer to
ELECTRICAL SYSTEM and ENGINE
MANAGEMENT
Safety lanyard switch faulty or
disconnected or harness damaged
Replace
Burnt fuse: battery, starting system.
Also fuel pump on
fuel injection
models
Check wiring then replace fuse
Starting system fuse keeps on burning Check wiring, starting system solenoid
and MPEM
Discharged or disconnected battery
Check/recharge
Defective or disconnected start/stop
switch
Check, refer to STARTING SYSTEM or
ENGINE MANAGEMENT
Battery connections
Check/clean/tighten
Poor/bad or corroded ground contacts
(engine, starter etc.)
Check/clean/repair
Water/fuel hydro-lock
Check, refer to MAINTENANCE
Starter malfunction Check, refer to ELECTRICAL SYSTEM
Starter solenoid Check, refer to ELECTRICAL SYSTEM
Obstructed starter drive gear ass'y Check/repair, refer to PTO
HOUSING/MAGNETO
Seized or obstructed engine Check/repair, refer to ENGINE
Seized or obstructed supercharger
(
4-TEC Supercharged models
)
Check/repair, refer to INTAKE
Hydraulically locked air compressor
(
DI models
)
Check/repair as needed
Seized jet pump Check, refer to PROPULSION SYSTEM
Engine does not turn over
Faulty sensor, ECM or MPEM
(
fuel injection models
)
Check fault codes, refer to ENGINE
MANAGEMENT
smr2004-Complete Line Up 49
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