Specifications

Data Parameters Engine Parameters

COOLING FAN OUTPUT DEMAND ENGINE

Range: __________________________________________________________ ON/OFF

COOL.FAN OUTP.DEMANDED BY ENGINE

Range: _________________________________________________________ 0 to 100%

Used on HFM and ME20 systems. This parameter indicates whether or not the ECU is

commanding the cooling fan to turn on based on engine temperature. The display reads ON or

100% when the ECU is enabling the fan, and OFF or 0% when the ECU disables the fan.

COOL.FAN OUTP.DEMAND CLIMATE CTRL

COOL.FAN OUTP.DEMAND.BY CLIM.CTRL

Range: __________________________________________________________ ON/OFF

Used on HFM and ME20 systems. This parameter indicates whether or not the ECU is

commanding the cooling fan to turn on based on the climate control system engaging the A/C

compressor. The display reads ON when the ECU is enabling the fan and the compressor is

engaged. Reads OFF when the fan is switched off and the compressor is disengaged.

COOLANT TEMPERATURE

Range: _________________________________________ –40 to 199°C or –40 to 390°F

Used on SIM4 systems. This parameter monitors engine coolant temperature. The measurement

units can be changed from degrees Celsius (°C) to degrees Fahrenheit (°F).

CORRECTED INT.MANIFOLD PRESS

Range: _____________________________________________________0 to 1000 mbar

Used on EAG systems. This parameter, which displays the corrected manifold absolute pressure

reading in millibars (mbar), is used by the ECU for making camshaft timing adjustments. On

vehicles equipped with EGR, the ECU also uses this parameter to detect EGR flow.

CR. CTRL SHUT-OFF BRAKES APPLIED

Range: __________________________________________________________ ON/OFF

Used on HFM systems. This parameter represents the signal from the brake switch to override

and disengage cruise control. With the cruise control engaged, the display should read OFF

while driving and ON whenever the brake pedal is depressed. When the display reads ON, the

brake pedal is depressed, and cruise control operation should be suspended.

CRANKSHAFT MAGNET CODING

CRANKSHAFT SEGMENT ORDER

Range: __________________________________________________________ YES/NO

Used on DM2 systems. These parameters indicate whether the crankshaft position sensor ECU

inputs are working correctly. The self diagnostic tests the crankshaft position sensor for adequate

voltage output and for proper crankshaft gear timing signature.

CRUISE CONTROL

CRUISE CONTROL ENGAGED

Range: __________________________________________________________ ON/OFF

Used on ME10, ME20 ME27, ME28 and HFM systems. These parameters represent the status

of the cruise control system. The display reads ON when cruise control is engaged and OFF

when disengaged.