75680 58 Mariner HOSE-TELLTALE (15 IN.)

Table 1
Diagnostic Trouble Codes    
CDL Code    Code Description    Comments    
2232-5     Engine Retarder Solenoid : Current Below Normal     This code indicates there is a problem with the engine retarder solenoid and/or electrical circuit on the ECM.    
2232-6     Engine Retarder Solenoid : Current Above Normal     This code indicates there is a problem with the engine retarder solenoid and/or electrical circuit on the ECM.    
2461-5     ARD Fuel Pressure #1 Control : Current Below Normal     This code indicates there is a problem with the pilot fuel solenoid and/or electrical circuit on the CEM.    
2461-6     ARD Fuel Pressure #1 Control : Current Above Normal     This code indicates there is a problem with the pilot fuel solenoid and/or electrical circuit on the CEM.    
3391-5     ARD Fuel Pressure #2 Control Actuator : Current Below Normal     This code indicates there is a problem with the main fuel solenoid and/or electrical circuit on the CEM.    
3391-6     ARD Fuel Pressure #2 Control Actuator : Current Above Normal     This code indicates there is a problem with the main fuel solenoid and/or electrical circuit on the CEM.    
3405-5     EGR Valve Control : Current Below Normal     This code indicates there is an electrical problem with the solenoid valve and/or circuit on the NRS valve actuator    
3405-6     EGR Valve Control : Current Above Normal     This code indicates there is an electrical problem with the solenoid valve and/or circuit on the NRS valve actuator.    
3409-5     Engine Exhaust Manifold Bank #1 Flow Balance Valve Solenoid : Current Below Normal     This code indicates there is a problem with the exhaust balance valve solenoid and/or electrical circuit.    
3409-6     Engine Exhaust Manifold Bank #1 Flow Balance Valve Solenoid : Current Above Normal     This code indicates there is a problem with the exhaust balance valve solenoid and/or electrical circuit.    
3413-5     ARD Fuel Flow Diverter Actuator : Current Below Normal     This code indicates there is a problem with the solenoid on the diverter valve and/or the electrical circuit located on the ARD electric fuel pump.    
3413-6     ARD Fuel Flow Diverter Actuator : Current Above Normal     This code indicates there is a problem with the solenoid on the diverter valve and/or the electrical circuit located on the ARD electric fuel pump.    
3427-5     Aftertreatment Fuel Pump Relay : Current Below Normal     This code indicates there is problem with the relay and/or circuit for the ARD electric fuel pump.    
3427-6     Aftertreatment Fuel Pump Relay : Current Above Normal     Indicates there is problem with the relay and/or circuit for the ARD electric fuel pump.    
Follow the troubleshooting procedure in order to identify the root cause of the problem.    Note: Refer to Troubleshooting, "Component Location" in this manual for the proper location of the components listed in this procedure.Electrical Checkouts on the Caterpillar Electronic Technician (ET)
Table 2
Component     Electrical Checkout    
Engine retarder solenoid     Engine Retarder Solenoid Override - initiate an engine retarder solenoid override through Cat ET in order to activate the engine retarder solenoid. Review active diagnostic codes to determine what code is present.    
Pilot control solenoid     ARD ignition test - initiate an ARD ignition test through Cat ET in order to activate the pilot control valve solenoid. If the fault becomes active, the test will abort. Review active diagnostic codes to determine what code is present.    
Main control solenoid     ARD ignition test - initiate an ARD ignition test through Cat ET in order to activate the main control valve solenoid. If the fault becomes active, the test will abort. Review active diagnostic codes to determine what code is present.    
Solenoid valve for NRS valve actuator     EGR system test - initiate the EGR system test through Cat ET in order to activate the control solenoid for the NRS valve. If the fault becomes active, the test will abort. Review active diagnostic codes to determine what code is present.    
Exhaust balance valve solenoid     Use the "Engine exhaust manifold bank #1 flow balance valve solenoid override" in the override parameters section in Cat ET to activate the exhaust balance valve solenoid. Review active diagnostic codes to determine what code is present.    
Fuel diverter valve     Use the "ARD fuel flow diverter actuator override" in the override parameters section in Cat ET to activate the fuel diverter valve on the ARD fuel pump. Review active diagnostic codes to determine what code is present.    
Relay for ARD fuel pump     Use the "Aftertreatment fuel pump relay override" in the override parameters section in Cat ET to activate the ARD fuel pump. Review active diagnostic codes to determine what code is present.    
Relay for ARD heater     ARD Nozzle heater circuit test - Initiate the ARD Nozzle heater circuit test through Cat ET in order to activate the ARD heater relay. Review active diagnostic codes to determine if a code is present.    
Illustration 1 g02472016
Test Step 1. Determine the Diagnostic Code
Establish communication between Cat ET and the ECM. Refer to Troubleshooting, "Electronic Service Tools", if necessary.
Download the "Warranty Report" from the engine ECM before performing any troubleshooting or clearing diagnostic trouble codes.Wait at least 30 seconds in order for the diagnostic codes to become active.
Look for these active codes or logged codes:
-5
-6Results:
A -5 diagnostic code is active. - Proceed to Test Step 2.
A -6 diagnostic code is active. - Proceed to Test Step 3. Test Step 2. Check the Wiring for an Open Circuit
Verify that the harness connector is free of debris, free of corrosion and securely connected.
Disconnect the solenoid from the engine harness.
Connect a jumper wire between the terminals of the harness co