hybrid operation, maintenance and warranty manual - Steyr Motors

2.15 Electronic Engine Control Unit (ECU)The STEYR MOTORS Marine Hybrid Engine is equipped with an Electronic Engine Control Unit (ECU) thatperforms the following:* controls engine functions to ensure maximum effi ciency.* self-diagnostic to protect the engine from damage if operating parameter are exceeded.* stores diagnostic data of ECU server circuits for maintenance and service.* stores abuse data2.16 Warning lights and audible alarmYour boat with the STEYR MOTORS Marine Hybrid Engine is equipped with three warning lights and oneaudible alarm (mounted behind the instrument panel) to indicate the following operation condition or systemdefi ciencies. (The ECU will also reduce the engine power in case an important operating parameter limit hasbeen exceeded).* Indication Pre-warming Phase (combined indication through oil pressure light. Becomes affective ifambient engine coolant temperature is below 20 °C/68 °F)* Break – In; over load warning* Engine oil pressure too low* High coolant temperature* Sensors or sensor circuit defectAfter ignition is turned “ON” the indication/warning lights are illuminated and the warning horn will sound for lessthen a second (0.7 sec.) this serves as a functional check for the optical/audible warning system.The indication light and the warning horn remain switched on for 5 sec. after ignition “ON” if a sensor or sensorcircuit defect have been detected and stored in the Engine Control Unit (ECU).Please contact your nearest STEYR MOTORS Service Partner to get proffesional assistance to verify thedefi ciency and to correct any possible failure.If the engine oil pressure is too low, the warning light “engine oil pressure” lights and the audible alarm sounds.The engine power will be limited.In this case proceed as follows:* Check engine oil level, respectively add engine oil if necessary (refer to chapter Fuel and Lubricants)* Restart engine and watch the oil pressure light. The warning light has to extinguish within 3 or 4second after the start. If this does not happen the engine must be stopped immediately. (Ignition “OFF”)In case of an overheating of the exhaust gas cooling system, the warning light “engine control” fl ashes and theaudible alarm sounds (2 times per second); the engine power is reduced.In this case, proceed as follows:* IMMEDIATELY reduce the engine to idle speed.* Check and clean the raw water fi lter* Check the coolant temperature gauge for overheating of engine coolant. If the coolant temperaturegauge indicates overheating of engine coolant, switch for a short time to REVERSE to remove apossible clogging of the raw water inlet through large plastic parts etc., and then to FORWARD. Letthe engine run at idle speed for some minutes. If the temperature gauge still indicates anoverheating of the engine, the engine is to be stopped. Restart the engine only after having foundand eliminated the cause for alarm. See “loss of power” in Operation, Maintenance and WarrantyManual Z001022/0, chapter Trouble Shooting Chart, Technical Data and in section Maintenance.Check coolant level and if necessary, refi ll coolant until an adequate coolant level is achieved.- 58 -Z001045-0_1_March 2012