828815 Force SCREW (1/4-20 X 1-3/4")

Table 1
Event Code
Description Conditions which Activate the Code System Response
E384(1) Left Air Inlet Restriction The switch for the air filter's inlet air restriction is activated. The alarm output is activated. The code is logged.
The engine may have low power due to the lack of inlet air. The engine may shut down because of excessive inlet air restriction.
E384(3) Left Air Inlet Restriction The shutdown output is activated. The code is logged.
E385(1) Right Air Inlet Restriction The alarm output is activated. The code is logged.
The engine may have low power due to the lack of inlet air. The engine may shut down because of excessive inlet air restriction.
E385(3) Right Air Inlet Restriction The shutdown output is activated. The code is logged.
E1045(1) Low Intake Manifold Pressure The control system for inlet air cannot provide sufficient inlet air to the engine.
The commands to the choke and the wastegate are at 0 percent for ten seconds.
An alarm will activate when the control system for air flow cannot provide the air flow that is required. A warning will appear on the display on the control panel. The code is logged.
The event code will deactivate if the command to the wastegate is above 0 percent for five seconds. Note: Some flash files do not have the shutdown E384(3) and E385(3) event codes. For flash files that have the shutdown E384(3) and E385(3) event codes, the feature must be activated by the customer. The customer must access the engine monitoring system with Cat ET in order to enable the shutdown level of the event codes. The default setting is a warning for E384(1) and E385(1).Probable Causes
E384 Left Air Inlet Restriction or E385 Right Air Inlet Restriction
Inlet air restriction
Problem with an electrical connection or with the wiring
Problem with the switch for the inlet air restrictionE1045(1) Low Intake Manifold Pressure
This event code indicates that there may be a mechanical problem with the wastegate or with the choke. The engine may shut down because of a fuel correction factor or the engine may shut down because of a temperature problem.Recommended Actions
E384 Left Air Inlet Restriction or E385 Right Air Inlet Restriction
Inlet Air Restriction
Excessive inlet air restriction is usually caused by a clogged air filter.For optimum operation, replace the air filter elements when the inlet air restriction reaches 2.5 kPa (10 inches of H2O). The maximum allowable inlet air restriction is 3.75 kPa (15 inches of H2O).If the inlet air restriction is excessive, determine the cause of the restriction and correct the condition. Replace the air filter element, if necessary.Electrical Connections or Wiring
There may be a problem with an electrical connection or with the wiring. Inspect the electrical connectors and all of the wiring for the switch. Refer to Troubleshooting, "Electrical Connectors - Inspect" and refer to the engine's electrical Schematic. Make repairs, if necessary.Test the Switch
The switch is normally open. Excessive inlet air restriction causes vacuum pressure to close the switch.Disconnect the switch for the inlet air restriction and remove the switch.Connect an ohmmeter to terminals "A" and "B" on the switch's connector and measure the continuity. The correct continuity for the normally open switch is greater than 20,000 Ohms.Continue to monitor the ohmmeter and apply a vacuum pressure of 5 0.6 kPa (20 2.30 inches of H2O) to the switch. The correct continuity for the closed switch is less than 5 Ohms.If the correct results are not obtained or if the switch does not close for the specified vacuum pressure, replace the switch.If the correct results are obtained, there may be a short circuit in an electrical connection or in the wiring. Use the ohmmeter to measure the resistance of the wiring. Refer to the engine's electrical Schematic. Make repairs, if necessary.E1045(1) Low Intake Manifold Pressure
Check for active diagnostic codes or logged diagnostic codes on the electronic service tool. Troubleshoot any codes before continuing with this procedure.Check the air inlet and exhaust system for restrictions and/or leaks. Refer to Systems Operation/Testing and Adjusting.Inspect the air choke for cleanliness or for damage. If the air choke is faulty, replace the air choke.Inspect the wastegate for damage. If the wastegate actuator is faulty, replace the wastegate actuator.Inspect the turbocharger for cleanliness or for damage. If the turbocharger is faulty, replace the turbocharger.