SETSCREW 6F0542 - Caterpillar

System Operation Description:Table 1 lists the diagnostic trouble codes for the Aftertreatment Identification Module.
Table 1
Diagnostic Trouble Codes
CDL Code J1939 Code Code Description
(code descriptions may vary) Comments
3468-2 5576-2 Aftertreatment #1 Identification Number Module: Erratic, Intermittent, or Incorrect The installed Clean Emissions Module (CEM) 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.
3468-8 5576-8 Aftertreatment #1 Identification Number Module: Abnormal Frequency Pulse Width or Period Emissions do not conform to regulations. Do not continue to operate the engine with the active fault.
Engine power is derated.
Follow the troubleshooting procedure in order to identify the root cause of the problem.
Table 2
Troubleshooting Test Steps Values Results
1. Check for Diagnostic Trouble 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, 3468-8, 5576-2 or 5576-8 diagnostic code is active.
Proceed to Test Step 2.
Illustration 1 g01963854
Typical CEM identification plate
Illustration 2 g03780083
CEM (typical)
(1) Typical location of CEM identification plate
Table 3
Troubleshooting Test Steps Values Results