repair manual
i found this while digging for answers, maybe it will help you.... some repair manual for seadoo watercrafts...
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Causes of troubles are not necessarily related to
starter but may be due to a burnt fuse, faulty battery,
start/stop switch, safety lanyard switch,
MPEM, solenoid, electrical cables or connections.
Check these components before removing starter.
Consult also the starting system troubleshooting
table on next page for a general view of
possible problems
Basic Self-Diagnostic Mode
It is self-activated when the safety lanyard is being installed on the watercraft switch. It gives immediate
monitoring. Some codes may occur only when pressing the start/stop button. Refer to the following
chart.
SIGNAL
2 short beeps
(while installing
safety lanyard on
watercraft switch)
CAUSE
• Safety lanyard is
recognized by the MPEM.
REMEDY
• Ignition is authorized, engine can start.
SIGNAL
1 long beep
(while installing
safety lanyard on
watercraft switch or
when pressing
start/stop button in
some cases)
CAUSE
• Bad connection between
safety lanyard cap and
switch.
REMEDY
• Remove and replace the safety lanyard on the
switch 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 lanyard condition with the programmer.
Replace safety lanyard if reported defective. If it
still does not work, enable more detail about the
failure.
• Salt water in safety
lanyard cap.
• Clean safety lanyard cap to remove salt water.
• Improper operation of
MPEM or defective wiring
harness.
• Enable advanced diagnostic mode to obtain more
detail about the failure.
SIGNAL
8 short beeps
CAUSE
• Defective MPEM
(memory).
REMEDY
• Replace MPEM.
SIGNAL
Continuous beep
CAUSE
• Engine overheating.
REMEDY
• Refer to TROUBLESHOOTING 02-01.
MPEM
If 2 short beeps are not heard when installing the
safety lanyard, refer to ELECTRICAL SYSTEM 07-06.
Engine Start/Stop Switch
Switch condition can be checked with an ohmmeter.
Disconnect the switch YELLOW/RED wire. Connect
test probes to YELLOW/RED wire and to
ground near solenoid.
Measure resistance, it must be an open circuit
(switch is normally open). Depress and hold
switch, the ohmmeter should read close to
0 ohm.
Safety Lanyard Switch
The following continuity tests can be performed
using an ohmmeter:
Disconnect switch wires.
Safety Lanyard Removed
Connect test probes to switch BLACK and
BLACK/YELLOW wires. Measure resistance,
there should be no continuity (open circuit).
Connect one test probe to the WHITE/GRAY wire
and the other test probe to the switch terminal.
Measure resistance, it must be close to 0 ohm.
Connect one test probe to the BLACK wire and
the other test probe to the switch ring. Measure
resistance, it must be close to 0 ohm.
Safety Lanyard on Switch
Connect test probes to switch BLACK and
BLACK/YELLOW wires. Measure resistance, it
must be close to 0 ohm.
Solenoid
NOTE: Solenoid is located in the electrical box.
Inspect connections and clean as necessary.
Static Test: Continuity
With a multimeter, check primary winding resistance.
It should be approximately 5 ohms.
There should be no continuity between the positive
posts of the solenoid.
Dynamic Test
Depress start/stop button and measure the voltage
on the solenoid positive posts with a multimeter.
If there is no voltage and battery is in good condition,
replace the solenoid.
Electrical Cables or Connections
Check all connections, cables and wires. Tighten
any loose cables. Replace any chafed wires.
hotolds442 is offline Reply With Quote
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It also came with some advice and something to try to check the mpem..
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originally posted by: hotolds442
OK, one more check...... There are 6 fuses inside the electrical box, pull all of them and visually check for dead fuses. The top 3 are spares for the bottom 3. The fourth one from the top is the VTS fuse, it should be a 7.5 amp, the next one is a 5 amp fuse - EXAMINE THIS ONE CLOSELY it is the fuse for the mpem. the bottom fuse is a 15 amp fuse - it is for the battery. I didn't recall seeing anything above about the fuses so check these next and we'll go from there.
Just noticed in the post above that you checked the fuses, so the next thing to do is to follow the wiring step by step.
1) Disconnect the yellow/red and black wire from the start/stop switch. You should find this under the glove box. Connect a short piece of wire between the two wires that lead to the electrical box after connecting the lanyard. You're looking for any sign of life here.
Reconnect the wires if no life forms exist.
I assume that the ohmmeter was used to verify that the start/stop was functional, if so, proceed.
2) Disconnect the Purple/tan and tan/black wires from their conector, again under the glovebox. Connect an ANALOG voltmeter across the two connectors leading to the electrical box. Connect the lanyard. You're looking for any needle movement. Needle movement will indicate that a signal is being sent to the buzzer, but the buzzer is not working. (we already knew this, but we need to see if the mpem is sending a signal)
3) Remove the lanyard, but keep the meter hooked up. Press the start button 5 times and again look for deflection of the needle. You should see the needle move,pause, and return, and move and return (one long and one short beep)
4) Install the lanyard again and press the start button, again looking for deflection of the needle - write down what you see in this step
If the needle deflects on any of these steps, let me know. If not, you're most likely in need of an mpem.
