5031771 JOHNSON **KEY (15)

Table 1
Diagnostic Trouble Codes    
CDL Code    J1939 Code    Code Description    Comments    
1-2     651-2     Cylinder #1 Injector : Erratic, Intermittent, or Incorrect     The code is logged.
The engine Electronic Control Module (ECM) receives a signal from the injector solenoid that is invalid. Or, the ECM receives a signal from the injector solenoid that cannot be accurately interpreted.
The ECM continues to energize the injector solenoid.    
1-5     651-5     Cylinder #1 Injector : Current Below Normal     The code is logged.
The ECM detects an open circuit.
The ECM continues the attempt to energize the solenoid circuit until the circuit is repaired.    
1-6     651-6     Cylinder #1 Injector : Current Above Normal     The code is logged.
The ECM detects a short circuit. The ECM will disable the solenoid circuit in order to prevent damage to the circuit.
The ECM disables this solenoid circuit. The ECM will periodically attempt to energize the solenoid circuit until the circuit is repaired.    
1-7     651-7     Cylinder #1 Injector : Not Responding Properly     The code is logged.
The ECM has determined that the mechanical wear for the injector is out of specifications.
The ECM continues to energize the injector solenoid.    
2-2     652-2     Cylinder #2 Injector : Erratic, Intermittent, or Incorrect     The code is logged.
The engine ECM receives a signal from the injector solenoid that is invalid. Or, the ECM receives a signal from the injector solenoid that cannot be accurately interpreted.
The ECM continues to energize the injector solenoid.    
2-5     652-5     Cylinder #2 Injector : Current Below Normal     The code is logged.
The ECM detects an open circuit.
The ECM continues the attempt to energize the solenoid circuit until the circuit is repaired.    
2-6     652-6     Cylinder #2 Injector : Current Above Normal     The code is logged.
The ECM detects a short circuit. The ECM will disable the solenoid circuit in order to prevent damage to the circuit.
The ECM disables this solenoid circuit. The ECM will periodically attempt to energize the solenoid circuit until the circuit is repaired.    
2-7     652-7     Cylinder #2 Injector : Not Responding Properly     The code is logged.
The ECM has determined that the mechanical wear for the injector is out of specifications.
The ECM continues to energize the injector solenoid.    
3-2     653-2     Cylinder #3 Injector : Erratic, Intermittent, or Incorrect     The code is logged.
The engine ECM receives a signal from the injector solenoid that is invalid. Or, the ECM receives a signal from the injector solenoid that cannot be accurately interpreted.
The ECM continues to energize the injector solenoid.    
3-5     653-5     Cylinder #3 Injector : Current Below Normal     The code is logged.
The ECM detects an open circuit.
The ECM continues the attempt to energize the solenoid circuit until the circuit is repaired.    
3-6     653-6     Cylinder #3 Injector : Current Above Normal     The code is logged.
The ECM detects a short circuit. The ECM will disable the solenoid circuit in order to prevent damage to the circuit.
The ECM disables this solenoid circuit. The ECM will periodically attempt to energize the solenoid circuit until the circuit is repaired.    
3-7     653-7     Cylinder #3 Injector : Not Responding Properly     The code is logged.
The ECM has determined that the mechanical wear for the injector is out of specifications.
The ECM continues to energize the injector solenoid.    
4-2     654-2     Cylinder #4 Injector : Erratic, Intermittent, or Incorrect     The code is logged.
The engine ECM receives a signal from the injector solenoid that is invalid. Or, the ECM receives a signal from the injector solenoid that cannot be accurately interpreted.
The ECM continues to energize the injector solenoid.    
4-5     654-5     Cylinder #4 Injector : Current Below Normal     The code is logged.
The ECM detects an open circuit.
The ECM continues the attempt to energize the solenoid circuit until the circuit is repaired.    
4-6     654-6     Cylinder #4 Injector : Current Above Normal     The code is logged.
The ECM detects a short circuit. The ECM will disable the solenoid circuit in order to prevent damage to the circuit.
The ECM disables this solenoid circuit. The ECM will periodically attempt to energize the solenoid circuit until the circuit is repaired.    
4-7     654-7     Cylinder #4 Injector : Not Responding Properly     The code is logged.
The ECM has determined that the mechanical wear for the injector is out of specifications.
The ECM continues to energize the injector solenoid.    
5-2     655-2     Cylinder #5 Injector : Erratic, Intermittent, or Incorrect     The code is logged.
The engine ECM receives a signal from the injector solenoid that is invalid. Or, the ECM receives a signal from the injector solenoid that cannot be accurately interpreted.
The ECM continues to energize the injector solenoid.    
5-5     655-5     Cylinder #5 Injector : Current Below Normal     The code is logged.
The ECM detects an open circuit.
The ECM continues the attempt to energize the solenoid circuit until the circuit is repaired.    
5-6     655-6     Cylinder #5 Injector : Current Above Normal     The code is logged.
The ECM detects a short circuit. The ECM will disable the solenoid circuit in order to prevent damage to the circuit.
The ECM disables this solenoid circuit. The ECM will periodically attempt to energize the solenoid circuit until the circuit is repaired.    
5-7     655-7     Cylinder #5 Injector : Not Responding Properly     The code is logged.
The ECM has determined that the mechanical wear for the injector is out of specifications.
The ECM continues to energize the injector solenoid.    
6-2     656-2     Cylinder #6 Injector : Erratic, Intermittent, or Incorrect     The code is