ARD Stationary Regeneration Does Not Activate
Certain diagnostic trouble codes prevent the ARD from operating. Use the Caterpillar Electronic Technician (ET) to determine if any of the following diagnostic trouble codes are active. If any of the codes are active, troubleshoot the codes. Contact your local Caterpillar technical communicator for on-highway engines for assistance if none of the codes are active.
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| Diagnostic Trouble Codes That Prevent the ARD From Starting | |||
|---|---|---|---|
| Suspect Parameter Number (SPN) | Failure Mode Identifier (FMI) | Code Description | Troubleshooting Procedure |
| 102 | 18 | Engine Intake Manifold #1 Pressure : Low - Moderate Severity (2) | Troubleshooting, "Intake Manifold Air Pressure Is Low" |
| 3251 | 18 | Diesel Particulate Filter Differential Pressure (bank 1) : Low - Moderate Severity (2) | Troubleshooting, "Diesel Particulate Filter Has Differential Pressure Problem" |
| 3285 | 18 | Diesel Particulate Filter Differential Pressure (bank 2) : Low - Moderate Severity (2) | Troubleshooting, "Diesel Particulate Filter Has Differential Pressure Problem" |
| 3487 | 7 | Aftertreatment #1 Air Pressure Control : Not Responding Properly | Troubleshooting, "ARD Combustion Air - Test" |
| 3530 | 31 | Aftertreatment #1 Regeneration Manually Disabled | The Aftertreatment Regeneration Device (ARD) is disabled by the "ARD Disable Switch" or by the "Data Link ARD Disable" configuration parameter. |
| 3703 | 31 | Diesel Particulate Filter Active Regeneration Inhibited Due to Inhibit Switch | The Aftertreatment Regeneration Device (ARD) is disabled by the "ARD Disable Switch". |
| 3714 | 31 | Diesel Particulate Filter Active Regeneration Inhibited Due to Temporary System Lockout | The "Data Link ARD Disable" configuration parameter is programmed to "Disabled". This parameter is in the "Emissions Parameters". Program the value of the parameter to "Not Disabled" in order to clear the code. |
| 4077 | 17 | Aftertreatment #1 Fuel Pressure #2 : Low - Least Severe (1) | Troubleshooting, "ARD Fuel Pressure - Test" |
| 4077 | 18 | Aftertreatment #1 Fuel Pressure #2 : Low - Moderate Severity (2) | Troubleshooting, "ARD Fuel Pressure - Test" |
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