58
FEATURES AND CONTROLS
Instrument Cluster
Diagnostic Display Code Definitions
Open Load:
There is a break in the wires that lead to the item listed in
the chart (injector, fuel pump, etc.), or the item has failed.
Short-to-Ground:
The wire is shorted to ground between the electronic
control unit and the item listed in the chart.
Shorted Load:
The wires leading to the item listed in the chart are
shorted together, or the item has shorted internally.
Short-to-Battery:
The wire leading from the item listed in the chart to
the electronic control unit is shorted to a wire at battery voltage.
Diagnostic Codes
Component
Condition
SPN
FMI
Throttle Position Sensor
Voltage Too High
51
3
Voltage Too Low
51
4
Engine Temperature Sensor
Voltage Too High
110
3
Voltage Too Low
110
4
Temperature Too High
110
16
Engine Overheat Shutdown
110
0
Intake Air Temperature Sensor
Voltage Too High
105
3
Voltage Too Low
105
4
Manifold Absolute Pressure Sensor
Voltage Too High
102
3
Voltage Too Low
102
4
Signal Out of Range
102
2
Crankshaft Position Sensor
Circuit Fault
636
8
Plausibility Fault
636
2
Vehicle Speed Signal
Speed Too High
84
8
Plausibility Fault
84
2
Gear Sensor Signal
Voltage Too Low
523
4
Voltage too high
523
3
Signal fault
523
2
Injector 1 (MAG) (SDI Part Load)
Driver Circuit Open/Grounded
651
5
Driver Circuit Short to B+
651
3
Driver Circuit Grounded
651
4
Injector 2 (PTO) (SDI Part Load)
Driver Circuit Open/Grounded
652
5
Driver Circuit Short to B+
652
3
Driver Circuit Grounded
652
4
