Service manual

CANDoo Professional
20
3. You are now ready to “ wake up” the ECU and start a diagnostic session.
Waking up the ECU:
In order to initiate a diagnostic session, you need to “ wake up” or turn on the ECU. This is done
by starting the ski. (or attempting to start the ski if it will not run!)
1.
Start the Waverunner engine. If you wish to do an active diagnostic session while the
engine is running (for example, using the engine monitor function, or to drop a cylinder
while running) please follow the instructions and warnings in the service manual for this
vehicle, and make sure you supply cooling water to the engine per the service manual.
2. If you do not wish to run the engine while doing diagnostics (for example, to read and clear
faults) you can just start the ski, start the diagnostic session with Candoopro, and shut off
the engine. Once the ski is in diagnostic mode, the ECU should continue to stay active. (if
it should happened to shut down, just restart the ski and start the diagnostic session over)
Starting the Diagnostic Session:
When the Candoopro application is running, and the ECU has been woken up, you are ready to
start the diagnostic session.