STEP 2:
Remove the ECU splash cover on the PWC to reveal the OEM ECU.
Disconnect and remove the OEM ECU from the PWC
Figure 3 – Removing the splash cover
Figure 4 – OEM ECU Mounted on support
Engine Control Relay (ECR) Latching
The ECU requires the engine control relay (ECR) to activate after the user has pressed
the start button and to de-activate five seconds after the motor has stopped running.
Although this is pre-configured in the respective Jet ski base map, an overview of the
ECR activation/deactivation is detailed below.
In order to activate and de-activate the engine control relay (ECR) the ECU utilises
one generic timer and the engine control relay function.
With the “Enable Latched Output” setting enabled within the engine control relay
function, the ECR will be activated as soon as battery voltage is seen at the ignition
signal input.
The ECR will continue to be held active, until the “Stop Condition” has been satisfied.
The stop condition for the ECR is a generic timer which starts to count upwards when
the RPM is 0 (engine off). When this timer exceeds five seconds, the “Stop Condition”
is satisfied and the ECR is deactivated which will result in the ECU powering down.
Figure 12 – Engine control relay latching settings
Figure 13 – Generic timer settings for ECR un-latching