This 7-page Caterpillar service document provides the complete C15 oil pressure DTCs troubleshooting procedure for diagnostic trouble code 0100-11 (Very Low Oil Pressure, FMI 46). It covers the conditions that generate the code, ECM system response including derate limits, and a structured 9-step diagnostic sequence for C15 On-Highway truck engines with MXS, NKS, or RKS prefix serial numbers.
Official C15 oil pressure DTCs troubleshooting document details
| Brand | Caterpillar (CAT) |
| Model coverage | C15 Truck Engine MXS, NKS, RKS |
| System / Group | Engine Oil Pressure — DTC 0100-11 Very Low Oil Pressure (FMI 46) |
| Publication no. | RENR5088-10 |
| Year / Revision | Published 01/02/2009, updated 25/02/2009 |
| Pages | 7 |
| File size | 0.1 MB |
| Format | |
| Language | English |
Document table of contents
- Conditions Which Generate This Code — oil pressure below trip line for more than 8 seconds
- System Response — check engine lamp, warning lamp, default torque map, speed limits (1350 RPM / 72 km/h)
- Test Step 1: Check the Engine Oil Level
- Test Step 2: Verify Proper Sensor Installation
- Test Step 3: Check for Active Diagnostic Codes (barometric and boost pressure sensors)
- Test Step 4: Check the Status Screen — boost pressure and engine oil pressure readings via Cat ET
- Test Step 5: Check the Supply Voltage to the Pressure Sensors (5.0 ± 0.16 VDC)
- Test Step 6: Install a Pressure Gauge — 1U-5470 Engine Pressure Group, compare gauge vs. Cat ET
- Test Step 7: Compare the Readings to the Oil Pressure Map
- Test Step 8: Check the Supply Voltage to the Boost Pressure Sensor
- Test Step 9: Check the Supply Voltage to the Engine Oil Pressure Sensor
Applicable truck models
This procedure applies to Caterpillar C15 On-Highway truck engines with configuration prefix MXS00001-UP. The publication also references NKS and RKS serial-number-prefix C15 engines. The ECM monitors oil pressure via a dedicated sensor and can trigger engine shutdown or power derate depending on whether the Engine Monitoring parameter is set to “Shutdown” or “Warning.” Diagnostics require the Caterpillar Electronic Technician (Cat ET) service tool connected to the data link connector, along with the 1U-5470 Engine Pressure Group for mechanical gauge verification. For official Caterpillar parts and service resources, visit Caterpillar Support.
Who needs this C15 oil pressure DTCs troubleshooting manual
Diesel mechanics and workshop owners servicing C15-powered highway trucks that display DTC 0100-11 will use this document to isolate whether the fault is caused by low oil level, a defective oil pressure sensor, wiring issues, a 5-volt supply fault, or an actual mechanical oil-pressure problem. Customer passwords are required to clear this diagnostic code after repairs are completed.
The full PDF is available in the DiagTechPro manuals library; a free account is required to download.
Related manuals library
Sản phẩm liên quan cho hãng này
Cùng brand theo taxonomy hiện có trong catalog WooCommerce.
CAT Perkins Pack – Premium Power & Performance by Caterpillar
CAT SIS
