BODY AS-PISTON 3398177 - Caterpillar

Table 1 lists the diagnostic trouble codes for the Aftertreatment Identification.
Table 1
J1939 Code and Description CDL Code and Description Comments
5576-2
Aftertreatment #1 Identification : Erratic, Intermittent, or Incorrect 3468-2
Aftertreatment #1 Identification Number Module : Erratic, Intermittent, or Incorrect The installed Clean Emissions Module (CEM) #1 is not a certified match with the engine.
The code is a confirmed emissions regulation violation. A financial penalty and/or legal action may result, if the problem is not corrected immediately. Do not operate the engine with the active fault.
Engine power is derated.
5577-2
Aftertreatment #2 Identification : Erratic, Intermittent, or Incorrect 3469-2
Aftertreatment #2 Identification Number Module : Erratic, Intermittent, or Incorrect The installed CEM #2 is not a certified match with the engine.
The code is a confirmed emissions regulation violation. A financial penalty and/or legal action may result, if the problem is not corrected immediately. Do not operate the engine with the active fault.
Engine power is derated.
Table 2
Troubleshooting Test Steps Values Results
1. Check for Codes
A. Establish communication between Cat® Electronic Technician (ET) and the Electronic Control Module (ECM) . Refer to Troubleshooting, "Electronic Service Tools", if necessary.
B. Download the "Warranty Report" from the engine ECM before performing any troubleshooting or clearing diagnostic trouble codes.
Codes
Result: A 3468-2, 5576-2, 3469-2, or 5577-2 code is active.
Proceed to Test Step 2.
Illustration 1 g06189734
CEM (typical)
(1) Typical location of CEM identification plate
Table 3
Troubleshooting Test Steps Values Results
2. Verify the Aftertreatment Identification Information
Note: Factory Passwords are required for this procedure.
A. Confirm that a certified CEM is installed on the engine. Contact your local Caterpillar dealer for a list of approved CEM and RF configurations for your engine.
B. Record the affected CEM serial number and the configuration group from the CEM Identification Plate.
C. Verify that the affected CEM is a certified match with the engine.
Contact a Caterpillar technical communicator, if necessary.
Certified Match
Result: The affected CEM is a certified match with the engine.
Proceed to Test Step 3.
Result: The affected CEM is not a certified match for the engine.
Repair: Remove the affected CEM and replace with a certified match for the engine. Refer to Disassembly and Assembly, Clean Emissions Module - Remove and Install. When the new CEM is installed, the"Aftertreatment Identification Number" will be communicated to the ECM and the diagnostic code will be cleared.
Note: When determining if a CEM is a certified match, the engine ECM will only communicate with the CEM if the total lifetime hours of the engine are less than 100. If the hours are greater than 100, the information from the CEM identification plate must be programmed into the ECM by using Cat ET.
Illustration 2 g06189697
Table 4
Troubleshooting Test Steps Values Results
3. Program the Aftertreatment Configuration
A. Establish communication between Cat ET and the affected ECM.
B. Navigate to the "Aftertreatment Configuration".
C. Program the required "Factory Installed Aftertreatment Identification Number" with the serial number from the CEM Identification Plate.
Aftertreatment Configuration
Result: The diagnostic code is automatically cleared.
Return to service.