879148T23 Mercruiser COVER

Table 2
Associated Codes
E995
E997
3719-16
3719-0
3720-15
3720-16
Table 3
Troubleshooting Test Steps Values Results
1. Check for Associated Codes
A. Establish communication between the Cat® Electronic Technician (ET) and the Electronic Control Module (ECM).
B. Download the "Warranty Report" from the ECM before performing any troubleshooting or clearing diagnostic trouble codes.
C. Determine if any of the codes in Table 2 are present.
Associated Diagnostic Codes
Result: An associated code is not present.
Proceed to Test Step 2.
Result: An associated code is present.
Repair: Refer to Troubleshooting, "Diagnostic Trouble Codes" to troubleshoot the associated diagnostic code.
If the problem is not resolved, proceed to Test Step 2.
2. Check the Ash Service Maintenance Time
A. Determine the most recent cleaning of the Diesel Particulate Filter (DPF).
Cleaning Interval
Result: The DPF was cleaned within the last 5000 hours.
Proceed to Test Step 3.
Result: The DPF was not cleaned within the last 5000 hours.
Proceed to Test Step 4.
3. Check for Contamination
A. Reset or clear all codes by using Cat ET.
B. Remove the DPF.
C. Check for contamination on the face of the DPF and the Diesel Oxidation Catalyst (DOC).
Contamination
Result: There is oil, fuel, or coolant on the DPF and/or the DOC.
Repair: Perform the following procedure:
1. Clean the DPF. Refer to the engines "Diesel Particulate Filter (DPF) Cleaner Manual" for the cleaning procedure.
2. Cleaning the DPF is not an ash service cleaning. Do not reset the engine ash model. The ash cannot be removed from the DPF if soot is present.
3. Reconnect the DOC and the DPF.
4. Start the engine. Run the engine at 1400 RPM with no load. Run the engine for at least 15 minutes or run the engine until there is no more white smoke.
Result: If the E1156 (1) or 3609-15 code remains active, replace the DPF. Refer to Special Instruction, REHS8180, "Aftertreatment Filter Maintenance on Tier 4 Final Products Equipped with a Diesel Particulate Filter (DPF), Diesel Oxidation Catalyst (DOC) and a Selective Catalyst Reduction (SCR) Filter".
Return the unit to service.
Result: If the DOC needs to be replaced. Perform a DOC reset.
4. Perform an Ash Service
A. Reset or clear all codes by using Cat ET.
B. Clean the DPF. Refer to Special Instruction, REHS8180, "Aftertreatment Filter Maintenance on Tier 4 Final Products Equipped with a Diesel Particulate Filter (DPF), Diesel Oxidation Catalyst (DOC) and a Selective Catalyst Reduction (SCR) Filter". Refer to Systems Operation and Testing and Adjusting, "Diesel Particulate Filter - Clean" for the correct procedure.
C. Perform an "ARD Ignition Test" in Cat ET. Check for the E1156 (1) or 3609-15 diagnostic code.
Note: The ARD Ignition Test cannot be performed if the DPF soot loading is above 80%. When the DPF soot loading is above 80%, the Manual DPF Regeneration must be performed using Cat ET.
Codes
Result: There are no active diagnostic codes.
Return the unit to service.
Result: The E1156 (1) or 3609-15 diagnostic code is active.
Repair: Replace the DPF. Reset or clear all codes by cycling the keyswitch to Off.
1. Perform an "ARD Ignition Test" to verify that the problem is resolved.
Return the unit to service.
If the procedure did not correct the issue, contact your Cat dealer Technical Communicator (TC). For further assistance, your TC can confer with the Dealer Solutions Network (DSN).