825470 Mercury FUEL PUMP

Table 1
-2 Diagnostic Trouble Codes for Active Analog Sensors
J1939 Code Description Callout in the Illustrations for Component Location Location of the Connector for the Sensor Notes
3242-2 Diesel Particulate Filter Intake Gas Temperature (bank 1) : Erratic, Intermittent, or Incorrect 20 There are several connectors between the Engine Control Module (ECM) and the sensor.
The connectors are 6-pin connectors.
One 6-pin connector (19) is on the sensor group for the Diesel Particulate Filter (DPF).
One 6-pin connector (8) is near the ECM. The ECM compares the signals from the three sensors for a Diesel Particulate Filter (DPF) whenever the following conditions are met:
The keyswitch is turned to the ON position. 15 seconds elapse. There are no -3 codes or -4 codes for any of the sensors. The engine is started.
The ECM verifies that the signal from each sensor is on the appropriate terminal of the P2 connector. The ECM activates a -2 code if a signal is detected on the wrong terminal or if the signal is incorrect. The following conditions can cause a -2 code:
The sensor group for the DPF is electrically connected to the wiring. However, the sensor group is not mechanically connected to the DPF.
There is a loose clamp in the exhaust piping between the outlet of the Aftertreatment Regeneration Device (ARD) and the inlet to the DPF.
The tubes between the DPF and the sensor group are obstructed. The obstruction can be caused by soot or frozen condensation.
There is a problem with the wiring between the sensor group and the ECM. Usually, the wiring problem is in the vehicle wiring harness.
3246-2 Diesel Particulate Filter Outlet Gas Temperature (bank 1) : Erratic, Intermittent, or Incorrect
3251-2 Diesel Particulate Filter Differential Pressure (bank 1) : Erratic, Intermittent, or Incorrect
3276-2 Diesel Particulate Filter Intake Gas Temperature (bank 2) : Erratic, Intermittent, or Incorrect
3280-2 Diesel Particulate Filter Outlet Gas Temperature (bank 2) : Erratic, Intermittent, or Incorrect
3285-2 Diesel Particulate Filter Differential Pressure (bank 2) : Erratic, Intermittent, or Incorrect
Follow the troubleshooting procedure in order to identify the root cause of the problem.
Table 2
-3 Diagnostic Trouble Codes for Active Analog Sensors
J1939 Code Description Callout in the Illustrations for Component Location Location of the Connector for the Sensor Notes
94-3 Engine Fuel Delivery Pressure : Voltage Above Normal 2 Sensor The ECM monitors the signal voltage from the sensor in order to detect a problem in the circuit.
When the ECM detects signal voltage that is above a threshold, the ECM activates a -3 diagnostic code. The high voltage condition must exist for a period in order for the diagnostic code to be activated.
During this test procedure, wait for 30 seconds after you create the test condition. Then, check for the code.
The most likely cause of a -3 code is a problem in an electrical connector or wiring. The following conditions can cause a -3 code:
Electrical connectors that are not fully connected
A socket is fretted. The pin does not contact the socket because the socket has become loose.
Electrical wiring is broken. The wire insulation appears to be okay. However, the electrical conductor inside the insulation is broken. This type of failure usually occurs when vibration causes the wire to bend back and forth. This type of failure usually occurs near an electrical connector.
100-3 Engine Oil Pressure : Voltage Above Normal 9 Sensor
101-3 Engine Crankcase Pressure : Voltage Above Normal 10 Sensor
102-3 Engine Intake Manifold #1 Pressure : Voltage Above Normal 1 Sensor
2948-3 Engine Intake Valve Actuation System Oil Pressure : Voltage Above Normal 11 Sensor
3241-3 Exhaust Gas Temperature 1 : Voltage Above Normal 17 7
3242-3 Diesel Particulate Filter Intake Gas Temperature (bank 1) : Voltage Above Normal 20 19 and 8
3245-3 Exhaust Gas Temperature 3 : Voltage Above Normal 15 7
3246-3 Diesel Particulate Filter Outlet Gas Temperature (bank 1) : Voltage Above Normal 20 19 and 8
3249-3 Exhaust Gas Temperature 2 : Voltage Above Normal 16 7
Follow the troubleshooting procedure in order to identify the root cause of the problem.
Table 3
-3 Diagnostic Trouble Codes for Active Analog Sensors
J1939 Code Description Callout in the Illustrations for Component Location Location of the Connector for the Sensor Notes
3251-3 Diesel Particulate Filter Differential Pressure (bank 1) : Voltage Above Normal 20 19 and 8 The ECM monitors the signal voltage from the sensor in order to detect a problem in the circuit.
When the ECM detects signal voltage that is above a threshold, the ECM activates a -3 diagnostic code. The high voltage condition must exist for a period in order for the diagnostic code to be activated.
During this test procedure, wait for 30 seconds after you create the test condition. Then, check for the code.
The most likely cause of a -3 code is a problem in an electrical connector or wiring. The following conditions can cause a -3 code:
Electrical connectors that are not fully connected
A socket is fretted. The pin does not contact the socket because the socket has become loose.
Electrical wiring is broken. The wire insulation appears to be okay. However, the electrical conductor inside the insulation is broken. This type of failure usually occurs when vibration causes the wire to bend back and forth. This type of failure usually occurs near an electrical connector.
3276-3 Diesel Particulate Filter Intake Gas Temperature (bank 2) : Voltage Above Normal 20 19 and 8
3280-3 Diesel Particulate Filter Outlet Gas Temperature (bank 2) : Voltage Above Normal 20 19 and 8
3285-3 Diesel Particulate Filter Differential Pressure (bank 2) : Voltage Above Normal 20 19 and 8
3480-3 Aftertreatment #1 Fuel Pressure #1 : Voltage Above Normal
This diagnostic code relates to main fuel pressure. 5 Sensor
4077-3 Aftertreatment #1 Fuel Pressure #2 : Voltage Above Normal
This diagnostic code relates to pilot fuel pressure. 5 Sensor
3830-3 Aftertreatment 1 Secondary Air Differential Pressure : Voltage Above Normal 13 Sensor
520193-3 CGI Gas Temperature : Voltage Above Normal 14 12
520196-3 CGI Differential Pressure : Voltage Above Normal 4 Sensor