Au Group Electronics
Au SAE J1939 Simulator (Gen II) 2.00A User Manual Rev. D
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4.3.
Display Panel – Engine Idle Shutdown (Is)
Figure 4-8
Engine Idle Shutdown Display Panel
"Engine Idle Shutdown (IS)" displays the control status of Engine Idle Shutdown. Here is a summary of each control
status (for more info, please refer to SAE J1939-71 and Table 5-2 in Chapter 5):
IS Timer EN (591):
It is also named "Engine Idle Shutdown Timer Function", which indicates the configuration (disabled
or enabled in calibration) of the idle shutdown timer system.
IS Timer ON (590):
It is also named "Engine Idle Shutdown Timer State", which indicates the current operation mode
(active or inactive) of the idle shutdown timer system.
IS Driver Alert (594):
It is also named "Engine Idle Shutdown Driver Alert Mode", which indicates the status (active or
inactive) of the driver alert mode of the idle shutdown timer system. While the driver alert mode is active, the idle
shutdown timer may be overridden.
IS Timer Override (592):
It is also named "Engine Idle Shutdown Timer Override", which indicates the status (active or
inactive) of the override feature of the idle shutdown timer system.
IS Shutdown Engine (593):
It is also named "Engine Idle Shutdown has Shutdown Engine", which identifies whether or
not the engine has been shutdown by the idle shutdown timer system.
4.4.
Display Panel – Engine Protection System (EPS)
"Engine Protection System (EPS)" displays the control status of Engine Protection System. Here is a summary of each
control status (for more info, please refer to SAE J1939-71 and Table 5-3 in Chapter 5):
Figure 4-9
Engine Protection System Display Panel
EPS EN (1111):
It is also named "Engine Protection System Configuration", which indicates the configuration (disabled
or enabled in calibration) of the engine shutdown system.
EPS ON (1107):
It is also named "Engine Protection System Timer State", which indicates the current mode (active or
inactive) of the engine protection system timer system.
EPS Approaching Shutdown (1109):
It is also named "Engine Protection System Approaching Shutdown", which
indicates whether engine shutdown is imminent (approaching or not approaching).
EPS Timer Override (1108):
It is also named "Engine Protection System Timer Override", which indicates the status
(active or inactive) of the override feature of the engine protection system timer.
EPS Shutdown Engine (1110):
It is also named "Engine Protection System has Shutdown Engine", which indicates
whether or not the engine protection system has shutdown the engine.
4.5.
Display Panel – A/C & Refrigerant Switch
A/C High Pressure Fan Switch (985):
the "ON" status indicates that the pressure in the coolant circuit of an air
conditioning system is high and the fan may be engaged.
Refrigerant Low Pressure Switch (875
): indicates the position of the low pressure switch in the coolant circuit of an air
conditioning system. When the switch is enabled, the pressure inside the circuit is too low and the compressor clutch
may be disengaged.
Refrigerant High Pressure Switch (605):
indicates the position of the high pressure switch in the coolant circuits of an
air conditioning system. When the switch is enabled, the pressure inside the circuit is too high and the compressor
clutch may be disengaged.
(For more information, please refer to SAE J1939-71 and Table 5-6 in Chapter 5)
