3858074 Volvo.Penta Adapter

Table 1
Diagnostic Trouble Codes That Relate to the Combustion Air System
J1939 Code Description Comments
3245-15 Exhaust Gas Temperature 3 : High - Least Severe (1) The temperature that is detected by the flame boundary temperature sensor is too high. The code is logged.
3474-31 Aftertreatment #1 : Loss of Combustion This code indicates that the ARD has stopped generating heat 20 times during an active regeneration.
The ARD is disabled. The Clean Gas Induction System (CGI) is turned off. Engine power is derated 30 percent.
Other diagnostic trouble codes may indicate the system that caused the loss of combustion to occur. The codes are listed in the troubleshooting procedure.
The code must be cleared with the "Reset All" button on the active diagnostics screen in Caterpillar Electronic Technician (ET). If an active regeneration is initiated with the forced regeneration switch on the dash, the Engine Control Module (ECM) clears this code automatically.
3487-7 Aftertreatment #1 Air Pressure Control : Not Responding Properly The boost pressure is okay. The oil pressure is okay. The air pressure control valve is not responding properly to the commands from the ECM.
The code is logged. Engine power is derated 30 percent. Transient regenerations are disabled. Steady state regenerations are allowed. Clean Gas Induction (CGI) is turned off until a regeneration is successfully completed.
3711-31 Diesel Particulate Filter Active Regeneration Inhibited Due to Low Exhaust Gas Temperature (2) Either of these conditions can cause this code:
The ARD has been operating for 60 minutes. The temperature at the inlet to the Diesel Particulate Filter (DPF) is less than 540 °C (1000 °F). This condition has occurred twice.
The ARD has been operating for 10 minutes. The temperature at the inlet to the DPF is more than 40 °C (100 °F) less than the temperature that is desired. This condition has occurred twice.
The ARD is disabled if the first condition has caused the code. Transient regenerations are disabled if the second condition has caused the code.
3832-15 Aftertreatment 1 Secondary Air Mass Flow : High - Least Severe (1) The flow of combustion air is consistently excessive. The code is logged.
3832-17 Aftertreatment 1 Secondary Air Mass Flow : Low - Least Severe (1) The flow of combustion air is consistently low.
The code is logged. Transient regenerations are disabled. Steady state regenerations are allowed.
Follow the troubleshooting procedure in order to identify the root cause of the problem. System OperationThe combustion air system routes pressurized air from the outlet of the turbocharger's compressor to the Aftertreatment Regeneration Device (ARD). The combustion air is mixed with fuel inside the ARD. The air/fuel mixture is ignited and the air/fuel mixture is burned in order to provide heat for the diesel particulate filter.Illustration 1 and Illustration 2 show the location of the components for the combustion air system.
Illustration 1 g01443740
Components for the combustion air system on C7 engines and C9 engines that are not installed in recreational vehicles
(1) Venturi
(2) Tubing
(3) Differential pressure sensor
(4) Oil lines for the air pressure control valve
(5) Air pressure control valve
(6) Coil
(7) Line for the combustion air
(8) ARD combustion head
Illustration 2 g01443743
Components for the combustion air system on C9 engines that are installed in recreational vehicles
(1) Venturi
(2) Tubing
(3) Differential pressure sensor
(4) Oil lines for the air pressure control valve
(5) Air pressure control valve
(6) Coil
(7) Line for the combustion air
(8) ARD combustion headThe combustion air system consists of the following groups:
Sensor group
Control GroupSensor GroupThe sensor group consists of these components:Venturi (1) - The venturi is a restriction in the line between air pressure control valve (5) and ARD combustion head (8). Two pressure taps on the venturi provide connection points for tubing.Tubing (2) - Tubing connects the venturi's pressure taps to differential pressure sensor (3).Differential Pressure Sensor (3) - This sensor produces an electrical signal that indicates the pressure drop across the venturi.The ECM receives the signal from the sensor. The ECM uses the signal to determine the amount of combustion air that is flowing to the ARD combustion head.The ECM creates a pulse width modulated signal that specifies the amount of combustion air that is desired. The ECM sends the signal to the control group.Control GroupThe control group consists of the following components:Coil (6) - The coil receives the PWM signal from the ECM. The coil creates a magnetic field that is detected by a spool in the air pressure control valve.Air Pressure Control Valve (5) - The air pressure control valve uses pressurized engine oil to convert the movement of the spool to movement of a poppet. Movement of the poppet causes the flow of combustion air to vary.The ECM can command the poppet to any position between the fully closed position and the fully open position. During an active regeneration, the ECM commands the poppet to a position that results in the desired flow of combustion air.Feature on the Caterpillar Electronic Technician (ET) for the Combustion Air SystemEngine Air System Verification Test - This automated test helps in the troubleshooting of problems with the flow of combustion air. The test is performed while the engine is running. Approximately two minutes are required in order for the test to run. Cat ET commands the air pressure control valve to move to various positions during the test. Cat ET measures the value of certain parameters during the test. The test results are displayed on Cat ET. The results must be interpreted in order to determine the troubleshooting that must be performed. Refer to Troubleshooting, "Air System Verification - Test" for additional information on this test.Test Step 1. Determine The Code
Establish communication between the Cat® Electronic Technician (ET) and the engine ECM.Note: The communications adapter must be communicating on both data links in order to perform this procedure. Refer to Troubleshooting, "Electronic Service Tools" for additional information, if necessary.
Look for the following codes:
3245-15
3474-31
3487-7
3711-31
3832-15
3832-17Expected Result:A 3474-31 code is present.Results:
A 3245-15, 3474-31, or 3711-31 code is present. - Proceed to Test Step 2.
A 3487-7, 3832-15, or 3832-17 code is present. - Proceed to Test Step 3.Test Step 2. Check for Associated Diagnostic Trouble CodesTable 2 lists the diagnostic trouble codes that