New Software is Used on Certain 3516C and C175-16 Engines {108I, 108J, 108K, 1920}
- Engine:
- 3516C (S/N: SKC1-UP; SCJ1-UP; SCK1-UP; SFK1-UP)
- C175-16 (S/N: WYC1-UP)
Description of Change: The new engine software provides updates to improve the operation of the aftertreatment system on certain engines that are listed above. The new software contains the following improvements:
- Improved Aftertreatment System Verification Test.
- New Diagnostics to Check the Compatibility Between the Engine ECM and the Aftertreatment ECM.
- Added "Engine Emission Inducement Counter Reset" to Allow Caterpillar® Electronic Technician (Cat ET) to Reset the Inducement Counter up to 35 Hours.
- Improved 3516-17 Low DEF Concentration Code.
- CEM Temperature Protection Derate Histogram Added.
- Improved NOx Sensor (-9) Code Diagnostics (Abnormal Update Rate).
- Improved 4792-14 Diaganostics - Aftertreatment SCR Cataylyst Sulfation is excessive.
Adaptable To: The new software is a direct replacement for the former software. Refer to Table 1 for a list of the new engine software part numbers. The new software is adaptable back to the first production on the serial numbers listed above.
Show/hide table
| Sales Model | New Part Number | Former Part Number |
| C175 Engine ECM | 474-5565 | 470-3392 |
| C175 Aftertreatment ECM | 474-5566 | 470-6578 |
| 3516C HD Engine ECM | 475-9277 | 471-4246 |
| 3516C HD Aftertreatment ECM | 475-9278 | 471-6313 |
Show/hide table
| Effective Serial Numbers |
| S/N:SCJ00115-UP |
| S/N:SCK00124-UP |
| S/N:SFK00122-UP |
| S/N:SKC00125-UP |
| S/N:WYC02004-UP |
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