Cummins M11 Code 333 is the Cummins M11 CELECT (1990-94) diagnostic sheet for Fault Code 333, a yellow-lamp injector circuit fault (PID S254, FMI 12). This 2-page PDF, published by TruckFaultCodes.com (Copyright 2017), gives the circuit description, component location and the full troubleshooting chart. It applies to both M11 and N14 CELECT engines that share this fault-code table.
Cummins M11 Code 333 document details
| Brand | Cummins |
| Model coverage | M11 and N14 CELECT (1990-94) |
| System / Group | Injector circuit |
| Fault code | 333 |
| PID / SPN / FMI | PID S254, FMI 12 |
| Warning lamp / SRT | YELLOW lamp, SRT 00-606 |
| Pages | 2 |
| File size | 0.2 MB |
| Format / Language | PDF, English |
Document table of contents
- Circuit description
- Component location
- Shop talk
- Troubleshooting steps
Applicable truck models
This sheet covers Cummins M11 CELECT and N14 CELECT (1990-94) engines used in Class 8 highway tractors and vocational trucks of that era. The ECM is bolted to the left side of the engine. Confirm the engine dataplate and calibration against your service data on the Cummins official support site before ordering parts.
The electronic control module (ECM), bolted to the left side of the engine, drives the injector circuit, and this fault also involves the engine position sensor (EPS). The extract lists a damaged engine position sensor (EPS) with cracked coils or potting, or an internal ECM failure, as the possible causes. The troubleshooting steps confirm the code is still active, then remove the EPS with installation tool Part Number 3822747 to inspect it for physical damage, cracked potting and correct seating, before disabling and clearing the code with the diagnostic tool.
Who needs this Cummins M11 Code 333 manual
Heavy-duty technicians and workshop owners chasing a stored yellow-lamp Cummins fault code on an M11 CELECT engine use this injector circuit sheet to follow the factory EPS inspection and code checks instead of guessing. Keep it beside your INSITE or generic diagnostic tool when confirming the repair and clearing the inactive counts.
The full PDF is available in the DiagTechPro manuals library; a free account is required to download it.
Applies to these truck models
This is the manufacturer document shared across 2 model families. It applies to:
- Cummins DTCs
- Cummins M11 CELECT (1990-94)
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