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TROUBLESHOOTING
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
189
TROUBLESHOOTING
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