This document is a CAT C15 06-05 guide covering diagnostic code 0006-05 (Cylinder #6 Injector Current Low) and the full Injector Solenoid Circuit test procedure for C15 On-Highway Truck Engines (MXS configuration). It details the conditions that generate injector current fault codes, ECM system responses, step-by-step electrical inspections, and repair instructions for open and short circuit conditions in the injector harness and ECM connectors.
Official CAT C15 06-05 document details
| Brand | Caterpillar (CAT) |
| Model coverage | C15 Truck Engine MXS (C15 On-Highway Truck MXS00001-UP) |
| System/Group | Electronic Unit Injector (EUI) Solenoid Circuit — SMCS 1290-038 |
| Publication no. | RENR5088-10 |
| Year/Revision | Published 01/02/2009, Updated 25/02/2009 |
| Pages | 17 |
| File size | 0.3 MB |
| Format | |
| Language | English |
Document table of contents
- 0006-05 Cylinder #6 Injector Current Low (74) — Conditions Which Generate This Code, System Response
- Injector Solenoid Circuit — Test (System Operation Description)
- Diagnostic codes covered: Cylinders #1–#6 Injector Current Low and High (1-05 through 6-06)
- Cylinder Cutout Test procedure
- Injector Solenoid Test procedure
- Electronic Unit Injector illustration
- Schematic for C15 engines — P2 ECM connector pinout and valve cover connectors
- Test Step 1: Inspect Electrical Connectors and Wiring
- Test Step 3: Check the Variation of the Injectors between Cylinders
- Test Step 5: Check Harness between ECM and Valve Cover Base for Open Circuit
- Test Step 7: Check the ECM for an Open Circuit
- Test Step 8: Check for a Short Circuit
- Resistance measurement procedures for return lines and common lines
Applicable truck models
This guide applies to the Caterpillar C15 On-Highway Truck Engine, specifically the MXS serial number prefix (MXS00001-UP). The Electronic Unit Injectors (EUI) in these engines are mechanically actuated and electronically controlled, operating on a 105-volt pulse from the ECM. The P2 ECM connector pinout and valve cover connector terminal assignments are specific to the C15 configuration. The procedure also references the 257-8718 Adapter Cable Assembly (120-PIN Breakout) for ECM-level diagnostics. For official Caterpillar parts and service resources, visit Caterpillar Support.
Who needs this CAT C15 06-05 manual
Diesel mechanics and workshop owners diagnosing misfires, low power, or injector current fault codes on CAT C15 truck engines need this manual. It is essential for anyone using Caterpillar Electronic Technician (Cat ET) software to run the Injector Solenoid Test or Cylinder Cutout Test and must trace open or short circuits through the engine harness, valve cover connectors, or ECM.
The full PDF is available in the DiagTechPro manuals library, free account 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
