DISC AS-CLUTCH 3P0805 - Caterpillar

System Operation Description:This procedure covers the following codes:
Table 1
Diagnostic Trouble Codes for the Aftertreatment Identification Module    
J1939 Code     Description     Notes    
5576-2     Aftertreatment #1 Identification Number Module: Erratic, Intermittent, or Incorrect     The Electronic Control Module (ECM) detects the following conditions:
The installed Clean Emissions Module (CEM) is not a certified match with the engine.
Diagnostic codes 5576-8 or 5576-14 are not active.
There are no active 3509 diagnostic codes.
The ECM has been powered for 2 seconds.
"This is a violation of the emissions regulations, and may result in severe fines and/or legal action if not corrected immediately." Do not operate the engine with the active fault.
Engine power is derated.    
5576-8     Aftertreatment #1 Identification Number Module: Abnormal Frequency Pulse Width or Period     The ECM detects the following conditions:
No signal is detected from the aftertreatment identification module.
There are no active 3509 diagnostic codes.
The ECM has been powered for 2 seconds.
Do not continue to operate the engine with the active fault.
Engine power is derated.    
5576-14     Aftertreatment #1 Identification Number Module: Special Instruction     The ECM detects the following conditions:
The signal from the aftertreatment identification module is invalid.
Diagnostic code 5576-8 is not active.
The ECM has been powered for 2 seconds.
Do not continue to operate the engine with the active fault.
Engine power is derated.    The aftertreatment identification module sends a digital signal to the engine ECM in order to ensure that the correct CEM is installed to the engine.If the total operating hours of the engine are greater than 25, the aftertreatment identification module will cease to send the signal. The diagnostic codes that are listed in Table 1 will be disabled.
Illustration 1 g02174705
Schematic for the aftertreatment identification module
Illustration 2 g02174636
View of the pin locations on the 31-pin connector and the 40-pin connector for the aftertreatment identification module
Illustration 3 g02013237
View of the pin locations on the P2 connector for the aftertreatment identification module (18) Aftertreatment identification module signal (36) Aftertreatment identification module return (45) CEM 5 VDC supply
Illustration 4 g02084579
Typical example of the connector for the aftertreatment identification module (1) 5 VDC Supply (3) Signal (6) GroundTest Step 1. Check for Diagnostic Trouble Codes
Establish communication between the electronic service tool and the ECM.
Download the following items before performing any troubleshooting or clearing any diagnostic codes:
Warranty Report
Aftertreatment Regeneration Trigger History
Product Status Report with Histograms
Use the electronic service tool to check for active diagnostic codes.Results:
A 5576-2 diagnostic code is active. - Proceed to Test Step 9.
A 5576-8 diagnostic code is active - Proceed to Test Step 2.
A 5576-14 diagnostic code is active - Proceed to Test Step 9.Test Step 2. Inspect Electrical Connectors and Wiring
Inspect the P2/J2 connector. Refer to Troubleshooting, "Electrical Connectors - Inspect" for details.
Inspect the 31-pin connector and the 40-pin connector. Refer to Troubleshooting, "Electrical Connectors - Inspect" for details.
Inspect the connector for the aftertreatment identification module. Refer to Troubleshooting, "Electrical Connectors - Inspect" for details.
Perform a 45 N (10 lb) pull test on each of the wires in the ECM connector that are associated with the aftertreatment identification