System Operation Description: Use this procedure to troubleshoot any suspect problems with the circuit for the coolant level sensor. The coolant level sensor monitors the…

System Operation Description: The ARD nozzle can become plugged with carbon or with debris. The engine is equipped with a system that cleans the nozzle.…

System Operation Description: The ARD nozzles can become plugged with carbon or with debris. The Engine Control Module (ECM) periodically tests the condition of the…

System Operation Description: Use this procedure to troubleshoot the following code. Note: Refer to Troubleshooting, “Cat ET Service Features” for information about service features. Note: Some of…

System Operation Description: Note: Refer to Troubleshooting, “Cat ET Service Features” for information about service features. Table 1 Troubleshooting Test Steps Values Results 1. Check the…

System Operation Description: Table 1 lists the diagnostic codes that relate to the combustion air system. Note: Some of the following codes may not be applicable…

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…

System Operation Description: The code indicates a warning for low fan speed. The warning will appear if the feedback to the Electronic Control Module (ECM)…

System Operation Description: Use this procedure to troubleshoot the following codes or if the air shutoff system is not operating properly. Table 1 Diagnostic Codes…

Use this procedure in order to troubleshoot a problem with the valve rotators or spring locks. Probable Cause   Valve Components  Recommended Actions Table 1…