LINE AS-FUEL INJ 7C6935 - Caterpillar

Use this procedure to troubleshoot when your ARD does not activate. Refer to Troubleshooting, "Event Codes" for information about event codes. For information on the engine monitoring system, refer to Troubleshooting, "Engine Monitoring System".Download the "Warranty Report" from the engine Electronic Control Module (ECM) before performing any troubleshooting or clearing diagnostic trouble codes.If an associated code is active, the regeneration system will be disabled. Troubleshoot the associated codes in order to allow regeneration to occur.
Table 1
Associated Diagnostic Trouble Codes
CDL Code J1939 Code Code Description
274-3 108-3 Atmospheric Pressure Sensor : Voltage Above Normal
274-4 108-4 Atmospheric Pressure Sensor : Voltage Below Normal
2452-3 3242-3 DPF #1 Intake Temperature Sensor : Voltage Above Normal
2452-4 3242-4 DPF #1 Intake Temperature Sensor : Voltage Below Normal
2461-5 3479-5 ARD Fuel Pressure #1 Control : Current Below Normal
2461-6 3479-6 ARD Fuel Pressure #1 Control : Current Above Normal
2465-5 3484-5 Aftertreatment #1 Ignition Transformer Primary : Current Below Normal
2465-6 3484-6 Aftertreatment #1 Ignition Transformer Primary : Current Above Normal
2489-5 3487-5 ARD Air Pressure Control Actuator : Current Below Normal
2489-6 3487-6 ARD Air Pressure Control Actuator : Current Above Normal
2489-8 3487-8 ARD Air Pressure Control Actuator : Abnormal Frequency, Pulse Width, or Period
2490-3 3488-3 ARD Air Pressure Control Actuator Position Sensor : Voltage Above Normal
2490-4 3488-4 ARD Air Pressure Control Actuator Position Sensor : Voltage Below Normal
2526-3 172-3 Air Inlet Temperature Sensor : Voltage Above Normal
2526-4 172-4 Air Inlet Temperature Sensor : Voltage Below Normal
3180-6 4265-6 Aftertreatment #1 Ignition Transformer Secondary : Current Above Normal
3427-5 5423-5 Aftertreatment Fuel Pump Relay : Current Below Normal
3427-6 5423-6 Aftertreatment Fuel Pump Relay : Current Above Normal
3464-3 3609-3 DPF #1 Intake Pressure Sensor : Voltage Above Normal
3464-4 3609-4 DPF #1 Intake Pressure Sensor : Voltage Below Normal
3464-13 3609-13 DPF #1 Intake Pressure Sensor : Calibration Required
3468-2 5576-2 Aftertreatment #1 Identification Number Module : Erratic, Intermittent, or Incorrect
3468-8 5576-8 Aftertreatment #1 Identification Number Module : Abnormal Frequency, Pulse Width, or Period
3468-14 5576-14 Aftertreatment #1 Identification Number Module : Special Instruction
3472-3 5591-3 ARD Air Pressure Control System : Voltage Above Normal
3472-4 5591-4 ARD Air Pressure Control System : Voltage Below Normal
3472-6 5591-6 ARD Air Pressure Control System : Current Above Normal
3472-9 5591-9 ARD Air Pressure Control System : Abnormal Update Rate
3472-14 5591-14 ARD Air Pressure Control System : Special Instruction
3482-3 3511-3 Sensor Supply #3 : Voltage Above Normal
3482-4 3511-4 Sensor Supply #3 : Voltage Below Normal
3485-3 3241-3 Aftertreatment #1 Exhaust Gas Temperature #1 Sensor : Voltage Above Normal
3485-4 3241-4 Aftertreatment #1 Exhaust Gas Temperature #1 Sensor : Voltage Below Normal
3493-3 3837-3 Aftertreatment #1 Secondary Air Pressure Sensor : Voltage Above Normal
3493-4 3837-4 Aftertreatment #1 Secondary Air Pressure Sensor : Voltage Below Normal
3493-13 3837-13 Aftertreatment #1 Secondary Air Pressure Sensor : Calibration Required
E991 (1, 2 or 3) 3715 DPF Active Regeneration Inhibited Due to Permanent System Lockout
E993 (1, 2 or 3) 3703 DPF Active Regeneration Inhibited Due to Inhibit Switch
E1008 (1, 2 or 3) 3242 High DPF #1 Intake Temperature
E1014 (1, 2 or 3) 3242 Low DPF #1 Intake Temperature
E1050 (1, 2 or 3) 3480