Controls and Operating
3-38
List of fault codes
SPN SPN Name SPN Description
FMIa
51 Engine Throttle Position The position of the valve used to regulate the
supply of a fluid, usually air or fuel/air mixture, to
an engine.
0,1,2,3,4,5
94 Engine Fuel Delivery Pressure Gauge pressure of fuel in the system as deliv-
ered from the supply pump to the injection pump.
0
98 Engine Oil Level Ratio of current volume of engine sump oil to the
maximum required volume.
2,3,4
100 Engine Oil Pressure Gauge pressure of oil in the engine lubrication
system as provided by the oil pump.
0,1,2,3,4
102 Engine Intake Manifold #1
Pressure
The gauge pressure measurement of the air
intake manifold.
0,1,2,3,5
105 Engine Intake Manifold 1 Tem-
perature
Temperature of pre-combustion air found in the
intake manifold number 1 of the engine air sup-
ply system.
0,2,3,4
107 Engine Air Filter 1 Differential
Pressure
Change in the engine air system pressure, mea-
sured across the filter, due to the filter and any
accumulation of solid foreign matter on or in the
filter.
1
108 Barometric Pressure Absolute air pressure of the atmosphere. 2,3,4
110 Engine Coolant Temperature Temperature of liquid found in the engine cooling
system.
0,1,2,3,4
111 Engine Coolant Level Ratio of volume of liquid found in the engine
cooling system to total cooling system volume.
1,3,4
156 Engine Injector Timing Rail 1
Pressure
The gauge pressure of fuel in the timing rail
delivered from the supply pump to the injector
timing inlet.
0,1,2,3,4
167 Charging System Potential
(Voltage)
Electrical potential measured at the charging
system output. The charging system may be any
device charging the batteries. This includes
alternators, generators, solid state charger and
other charging devices.
2,5,6
168 Battery Potential / Power Input
1
This parameter measures the first source of bat-
tery potential as measured at the input of the
ECM/actuator etc. coming from one or more bat-
teries, irrespective of the distance between the
component and the battery.
0, 1
171 Ambient Air Temperature Temperature of air surrounding vehicle. 0,1,2
190 Engine Speed Actual engine speed which is calculated over a
minimum crankshaft angle of 720 degrees
divided by the number of cylinders.
0,2
559 Accelerator Pedal Kickdown
Switch
Switch signal which indicates whether the accel-
erator pedal kickdown switch is opened or
closed.
2
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