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 Low  | 
                     
                     
                        
                         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  | 
                     |
| 
                        
                         Ignition Coil Primary Driver 1 (MAG)  | 
                     
                     
                        
                         Driver Circuit Short to B+  | 
                     
                     
                        
                         1268  | 
                     
                     
                        
                         3  | 
                     
| 
                        
                         Ignition Coil Primary Driver 2 (PTO)  | 
                     
                     
                        
                         Driver Circuit Short to B+  | 
                     
                     
                        
                         1269  | 
                     
                     
                        
                         3  | 
                     
| 
                        
                         Fuel Pump Driver Circuit  | 
                     
                     
                        
                         Driver Circuit Open/Grounded  | 
                     
                     
                        
                         1347  | 
                     
                     
                        
                         5  | 
                     
| 
                        
                         Driver Circuit Short to B+  | 
                     
                     
                        
                         1347  | 
                     
                     
                        
                         3  | 
                     |
| 
                        
                         Driver Circuit Grounded  | 
                     
                     
                        
                         1347  | 
                     
                     
                        
                         4  | 
                     |
| 
                        
                         Fan Relay Driver Circuit  | 
                     
                     
                        
                         Driver Circuit Open/Grounded  | 
                     
                     
                        
                         1071  | 
                     
                     
                        
                         5  | 
                     
| 
                        
                         Driver Circuit Short to B+  | 
                     
                     
                        
                         1071  | 
                     
                     
                        
                         3  | 
                     |
| 
                        
                         Driver Circuit Grounded  | 
                     
                     
                        
                         1071  | 
                     
                     
                        
                         4  | 
                     |
| 
                        
                         Idle Air Control  | 
                     
                     
                        
                         Driver Circuit Open/Grounded  | 
                     
                     
                        
                         634  | 
                     
                     
                        
                         5  | 
                     
| 
                        
                         Driver Circuit Short to B+  | 
                     
                     
                        
                         634  | 
                     
                     
                        
                         3  | 
                     |
| 
                        
                         Driver Circuit Grounded  | 
                     
                     
                        
                         634  | 
                     
                     
                        
                         4  | 
                     |
| 
                        
                         Position Out of Range  | 
                     
                     
                        
                         634  | 
                     
                     
                        
                         7  | 
                     |
| 
                        
                         Starter Enable Circuit  | 
                     
                     
                        
                         Driver Circuit Open/Grounded  | 
                     
                     
                        
                         1321  | 
                     
                     
                        
                         5  | 
                     
| 
                        
                         Driver Circuit Short to B+  | 
                     
                     
                        
                         1321  | 
                     
                     
                        
                         3  | 
                     |
| 
                        
                         Driver Circuit Grounded  | 
                     
                     
                        
                         1321  | 
                     
                     
                        
                         4  | 
                     |
| 
                        
                         Chassis Relay  | 
                     
                     
                        
                         Driver Circuit Open/Grounded  | 
                     
                     
                        
                         520208  | 
                     
                     
                        
                         5  | 
                     
| 
                        
                         Driver Circuit Short to B+  | 
                     
                     
                        
                         520208  | 
                     
                     
                        
                         3  | 
                     |
| 
                        
                         Driver Circuit Grounded  | 
                     
                     
                        
                         520208  | 
                     
                     
                        
                         4  | 
                     |
| 
                        
                         All Wheel Drive Control  | 
                     
                     
                        
                         Driver Circuit Open/Grounded  | 
                     
                     
                        
                         520207  | 
                     
                     
                        
                         5  | 
                     
| 
                        
                         Driver Circuit Short to B+  | 
                     
                     
                        
                         520207  | 
                     
                     
                        
                         3  | 
                     |
| 
                        
                         Driver Circuit Grounded  | 
                     
                     
                        
                         520207  | 
                     
                     
                        
                         4  | 
                     |
| 
                        
                         System Power  | 
                     
                     
                        
                         Voltage Too High  | 
                     
                     
                        
                         168  | 
                     
                     
                        
                         3  | 
                     
| 
                        
                         Voltage Too Low  | 
                     
                     
                        
                         168  | 
                     
                     
                        
                         4  | 
                     |
| 
                        
                         Throttle Safety Signal  | 
                     
                     
                        
                         Voltage Too High  | 
                     
                     
                        
                         520194  | 
                     
                     
                        
                         3  | 
                     
| 
                        
                         Voltage Too Low  | 
                     
                     
                        
                         520194  | 
                     
                     
                        
                         4  | 
                     |
| 
                        
                         Signal Out of Range  | 
                     
                     
                        
                         520194  | 
                     
                     
                        
                         2  | 
                     |
| 
                        
                         Throttle Stuck  | 
                     
                     
                        
                         520194  | 
                     
                     
                        
                         7  | 
                     |
| 
                        
                         Active Descent Control System  | 
                     
                     
                        
                         Driver Circuit Open/Grounded  | 
                     
                     
                        
                         520203  | 
                     
                     
                        
                         5  | 
                     
| 
                        
                         Driver Circuit Short to B+  | 
                     
                     
                        
                         520203  | 
                     
                     
                        
                         3  | 
                     |
| 
                        
                         Driver Circuit Grounded  | 
                     
                     
                        
                         520203  | 
                     
                     
                        
                         4  | 
                     |
| 
                        
                         Idle Speed  | 
                     
                     
                        
                         Speed Too High  | 
                     
                     
                        
                         520211  | 
                     
                     
                        
                         3  | 
                     
| 
                        
                         Speed Too Low  | 
                     
                     
                        
                         520211  | 
                     
                     
                        
                         4  | 
                     |
| 
                        
                         Diagnostic Codes  | 
                     |||
|---|---|---|---|
| 
                        
                         Component  | 
                     
                     
                        
                         Condition  | 
                     
                     
                        
                         SPN  | 
                     
                     
                        
                         FMI  | 
                     
| 
                        
                         EPS Models Only  | 
                     |||
| 
                        
                         Vehicle Speed Sensor  | 
                     
                     
                        
                         Received Network Data In Error  | 
                     
                     
                        
                         84  | 
                     
                     
                        
                         19  | 
                     
| 
                        
                         System Power  | 
                     
                     
                        
                         Voltage Above Normal, Or Shorted To High Source  | 
                     
                     
                        
                         168  | 
                     
                     
                        
                         3  | 
                     
| 
                        
                         Voltage Below Normal, Or Shorted To Low Source  | 
                     
                     
                        
                         168  | 
                     
                     
                        
                         4  | 
                     |
| 
                        
                         Engine Speed  | 
                     
                     
                        
                         Received Network Data In Error  | 
                     
                     
                        
                         190  | 
                     
                     
                        
                         19  | 
                     
| 
                        
                         ECU Memory  | 
                     
                     
                        
                         Bad Intelligent Device Or Component  | 
                     
                     
                        
                         628  | 
                     
                     
                        
                         12  | 
                     
| 
                        
                         Calibration  | 
                     
                     
                        
                         Out Of Calibration  | 
                     
                     
                        
                         630  | 
                     
                     
                        
                         13  | 
                     
| 
                        
                         Steering Over Current Shut Down  | 
                     
                     
                        
                         Current Above Normal Or Grounded Circuit  | 
                     
                     
                        
                         520221  | 
                     
                     
                        
                         6  | 
                     
| 
                        
                         Steering Excessive Current Error  | 
                     
                     
                        
                         Current Above Normal Or Grounded Circuit  | 
                     
                     
                        
                         520222  | 
                     
                     
                        
                         6  | 
                     
| 
                        
                         Steering Torque Full Failure  | 
                     
                     
                        
                         Condition Exists  | 
                     
                     
                        
                         520224  | 
                     
                     
                        
                         31  | 
                     
| 
                        
                         EPAS Inverter Temperature  | 
                     
                     
                        
                         Data Valid But Above Normal Operational Range - Most Severe Level  | 
                     
                     
                        
                         520225  | 
                     
                     
                        
                         0  | 
                     
| 
                        
                         Data Valid But Above Normal Operating Range - Moderately Severe Level  | 
                     
                     
                        
                         520225  | 
                     
                     
                        
                         16  | 
                     |
| 
                        
                         EPAS Communications Receive Data Error  | 
                     
                     
                        
                         Data Erratic, Intermittent Or Incorrect  | 
                     
                     
                        
                         520226  | 
                     
                     
                        
                         2  | 
                     
| 
                        
                         Position Encoder Error  | 
                     
                     
                        
                         Root Cause Not Known  | 
                     
                     
                        
                         520228  | 
                     
                     
                        
                         11  | 
                     
| 
                        
                         EPAS Software Error  | 
                     
                     
                        
                         Bad Intelligent Device Or Component  | 
                     
                     
                        
                         520229  | 
                     
                     
                        
                         12  | 
                     
| 
                        
                         EPAS Power Save Condition  | 
                     
                     
                        
                         Condition Exists  | 
                     
                     
                        
                         520231  | 
                     
                     
                        
                         31  | 
                     
| 
                        
                         EPS CAN Communications Transmit Error  | 
                     
                     
                        
                         Data Erratic, Intermittent Or Incorrect  | 
                     
                     
                        
                         520227  | 
                     
                     
                        
                         2  |