COMPONENT
Throttle Position Sensor
Vehicle Speed Sensor
Intake Air Temperature
Sensor
Barometric Pressure
Sensor
Engine Temperature
Sensor
Alternator Power Supply
Potential (DC Chassis
Voltage)
Exhaust Temperature
Sensor
ECU Memory
Injector 1 (MAG
Injector 2 (PTO)
Knock Sensor 1
DIAGNOSTIC CODES
CONDITION
Voltage Too High
Voltage Too Low
Abnormal Rate of Change
Data Erratic, Intermittent or
Missing
Voltage Too High
Voltage Too Low
Voltage Too High
Voltage Too Low
Voltage Too High
Voltage Too Low
Temperature Too High
Engine Overheat Shutdown
Temperature Above Normal
Range
Voltage Too High
Voltage Too Low
Voltage Too High
Voltage Too Low
Checksum/CRC Error
Driver Circuit Open/Grounded
Driver Circuit Short to B+
Driver Circuit Open/Grounded
Driver Circuit Short to B+
Voltage Too Low
TROUBLESHOOTING
SPN
51
84
105
108
110
167
173
628
651
652
731
FMI
3
4
10
2
3
4
3
4
3
4
16
0
15
3
4
3
4
13
5
3
5
3
4
155