Service manual

CANDoo Professional
193
Look in the table for any Active or Occurred faults. The underlying problem causing these faults
must be fixed. (Disregard the P1601 Diagnostic Cap fault) Refer to the Diagnostic Procedures
section of the Service Manual for the watercraft for instructions related to troubleshooting problems
related to the component(s) indicated by the fault.
Step #3 - Clear the faults
Most difficulties in diagnosing DI problems are related to Transient Faults. (a
Transient Fault happens briefly, then goes away) In the example presented in the Overview
Section, a transient fault is triggered by hitting a wake, then it immediately goes away. How do you
handle this type of situation? The solution is to clear the faults, and then run the watercraft again
until the fault happens again.
To clear the faults, you simply press the Clear Faults button. The Faults will be cleared in the
MPEM, and CANDooPro will display an updated table once the faults are cleared.
The Fault Clearing process does the following:
 Resets the Count column to zero for any faults that have a count value
 Resets the First column to zero for all faults
 For any faults that have a count, the Clear column will increment up by one. For example,
if you show a count value of 10 for a particular fault, and a Clear value of 2, after clearing,
the count value will be set to 0, and the Clear value will be set to 3.
 For any faults that have a count, the Last column will be set to the current engine hours, in
minutes. For example, if you have a P0563 faut with a count, and your present engine
hours are 95 Hours, 24 minutes, the Last cell for that fault will be set to 5604.
 Resets the Conditions table to blank.
Step #4 - Run watercraft until fault reappears
Although this step is hard for an independent shop, (because you need to tell the customer to run it
again until fault happens again and bring it back) it is something that makes CANDooPro very
valuable for the DI owner. You can clear the faults and go out and run it until the fault comes back.
Step #5 - Read faults again
Once you have cleared the faults and run the watercraft again until the fault reappears, you have
everything you need to determine what caused the fault. The DI MPEM logs every fault by
incrementing the Count by one anytime the fault appears. For example, you have cleared the
faults, you take the watercraft out for a run, and when you hit a wake, the watercraft displays Maint
and it goes into limp mode. You take the watercraft back to the dock, shut off the watercraft, and
attach CANDooPro and read the fault table. All faults show Inactive (except the Diagnostic Cap
fault). However, when you look at the Count table, you notice that only one fault has a Count (of 1)
and it is fault P0475 RAVE Solenoid. You now know for sure that the fault that caused the limp
mode and Maint light was something related to the Rave solenoid. In this example, it could be the
RAVE solenoid is faulty, but it is more likely that the wiring or connector to the RAVE solenoid is
making a bad connection when a bump was hit.