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 |
4 |
||
|
Abnormal Rate of Change |
10 |
||
|
Vehicle Speed Sensor |
Data Erratic, Intermittent or Missing |
84 |
2 |
|
Intake Air Temperature Sensor |
Voltage Too High |
105 |
3 |
|
Voltage Too Low |
4 |
||
|
Barometric Pressure Sensor |
Voltage Too High |
108 |
3 |
|
Voltage Too Low |
4 |
||
|
Engine Temperature Sensor |
Voltage Too High |
110 |
3 |
|
Voltage Too Low |
4 |
||
|
Temperature Too High |
16 |
||
|
Engine Overheat Shutdown |
0 |
||
|
Temperature Above Normal Range |
15 |
||
|
Alternator Power Supply Potential (DC Chassis Voltage) |
Voltage Too High |
167 |
3 |
|
Voltage Too Low |
4 |
||
|
Exhaust Temperature Sensor |
Voltage Too High |
173 |
3 |
|
Voltage Too Low |
4 |
||
|
ECU Memory |
Checksum/CRC Error |
628 |
13 |
|
Injector 1 (MAG |
Driver Circuit Open/Grounded |
651 |
5 |
|
Driver Circuit Short to B+ |
3 |
||
|
Injector 2 (PTO) |
Driver Circuit Open/Grounded |
652 |
5 |
|
Driver Circuit Short to B+ |
3 |
||
|
Knock Sensor 1 |
Voltage Too Low |
731 |
4 |
|
Ignition Coil Primary Driver 1 (MAG) |
Driver Circuit Open/Grounded |
1268 |
5 |
|
Fuel Pump Driver Circuit |
Driver Circuit Open/Grounded |
1347 |
5 |
|
Knock Level Cylinder 1 (MAG) |
Maximum Detonation Correction Limit Reached |
1352 |
0 |
|
Knock Above Critical Level |
16 |
||
|
Knock Level Cylinder 2 (PTO) |
Maximum Detonation Correction Limit Reached |
1353 |
0 |
|
Knock Above Critical Level |
16 |
||
|
Sensor Supply Voltage 1 (TPS/TMAP Sensor Power) |
Voltage Too Low |
3509 |
4 |
|
Sensor Supply Voltage 2 (Ground Speed Sensor) |
Voltage Too Low |
3510 |
4 |
|
ECU Output Supply Voltage 2 (Injection Supply PWR) |
Voltage Too High |
3598 |
3 |
|
Voltage Too Low |
4 |
||
|
Throttle Release Signal |
Voltage Too High |
520194 |
3 |
|
Voltage Too Low |
4 |
||
|
Throttle Stuck |
7 |
||
|
Chassis Relay |
Driver Circuit Open/Grounded |
520208 |
5 |
|
Driver Circuit Short to B+ |
3 |
||
|
Exhaust Valve Solenoid (600 Only) |
Driver Circuit Grounded |
520215 |
5 |
|
Driver Circuit Short to B+ |
3 |
||
|
EV Actuator Driver (Controller) (800 H.O. Only) |
Voltage Too High |
520324 |
3 |
|
Voltage Too Low |
4 |
||
|
Learn Failure |
13 |
||
|
Hardware Failure |
12 |
||
|
Commanded Pos. Not Achieved |
7 |
||
|
PWM Set Missing |
2 |
||
|
MAX Temperature Exceeded |
520334 |
31 |
|
|
Signal Out of Range - Valve Open |
520325 |
31 |
|
|
Signal Out of Range - Valve Mid |
520326 |
31 |
|
|
Signal Out of Range - Valve Closed |
520327 |
31 |
|
|
Short to Battery Voltage |
520335 |
3 |
|
|
Short to Ground |
4 |
||
|
Abnormal Transition |
10 |
||
|
Electronic Oil Pump |
Driver Circuit Open / Grounded |
3589 |
4 |
|
Driver Circuit Grounded |
5 |
||
|
Oil Pump or Fuel Injector Settings not Programmed |
Out of Calibration |
520241 |
13 |