Specifications

53
Data Parameters Engine Parameters
ENGINE OIL LEVEL
Range: _______________________________________________________ OK/NOT OK
Used on ME10 systems. This parameter indicates whether there is or is not enough engine oil in
the crankcase. Display should read OK at all times. The display only reads NOT OK if the engine
oil falls below a certain level, which indicates the possibility of engine damage.
ENGINE OIL TEMPERATURE
Range: _________________________________________ –60 to 116°C or –76 to 240°F
Used on ME20 systems. This parameter is based on the input signal of the engine oil
temperature sensor, and displays engine oil temperature. The measurement units can be
changed from degrees Celsius (°C) to degrees Fahrenheit (°F).
ENGINE SPEED
Range: _______________________________________________ 0 to engine maximum
Used on all systems. This parameter is the engine crankshaft speed displayed as revolutions per
minute (RPM). RPM is internally calculated by the ECU based on reference pulses from the
ignition system or the crankshaft position (CKP) sensor.
ENGINE SPEED LIMITER
ENGINE START CONTROL
Range: __________________________________________________________ ON/OFF
Used on HFM, ME27 and ME28 systems. This parameter indicates whether the ECU is limiting
engine speed. The display should read OFF under normal operating conditions. A reading of ON
indicates the ECU is taking preventive measures to avoid internal damage. To protect the
engine, torque converter and powertrain, the ECU limits engine speed under specific operating
conditions by leaning the air-fuel mixture, cutting off fuel delivery, or retarding ignition timing.
ENGINE START TEMPERATURE
Range: ___________________________________________–6 to116°C or –21 to 240°F
Used on HFM, ME10, ME20 ME27, ME28 and SIM4 systems. This parameter displays what the
engine coolant temperature was when the engine was started. The parameter resets with each
key cycle, and shows engine start temperature. The measurement units can be changed from
degrees Celsius (°C) to degrees Fahrenheit (°F).
ETS INTERVENTION
Range: __________________________________________________________ ON/OFF
ETS
Range: __________________________________________________________ YES/NO
Used on HFM systems. These parameters indicates whether the electronic traction system
engaged. The display reads ON or YES when the electronic traction system is engaged, and
OFF or NO when disengaged.
ETS INTERVENTION
Range: __________________________________________________________ ON/OFF
Used on ME20, ME27 and ME28 systems. This parameter shows the state of the exhaust flap,
which is positioned on one side of the exhaust system between the three-way catalyst (TWC)
and the rear muffler. The display reads ON when the ECU is commanding the vacuum-operated
valve to close, and OFF when the valve is open. The purpose of the flap is to increase back-
pressure in the exhaust and to minimize noise during cruise conditions when fuel is shut-off on
one bank of cylinders to conserve fuel. Typically, the exhaust flap closes (ON) at speeds up to
approximately 2300 to 2500 RPM when cylinder shut off is ON. The flap does not completely
seal off the exhaust pipe, but restricts it enough to dampen noise and to equalize temperature
between banks.