This 2-page troubleshooting document covers C15 coolant temperature DTCs diagnostic code 0110-00, which triggers a high coolant temperature warning on C15 On-Highway Truck Engines (MXS configuration). It details the conditions that generate the code, the engine’s system response including derate behavior, and the required cooling system test procedure.
Official C15 coolant temperature DTCs document details
| Brand | Caterpillar (CAT) |
| Model coverage | C15 Truck Engine MXS (C15 On-Highway Truck MXS00001-UP) |
| System / Group | DTCs — SMCS 1439-038-CLT; 1906-038 |
| Publication no. | RENR5088-10 |
| Year / Revision | Published 01/02/2009, updated 25/02/2009 |
| Pages | 2 |
| File size | 0.1 MB |
| Format | |
| Language | English |
Document table of contents
- 0110-00 High Coolant Temperature Warning (61) — Conditions Which Generate This Code
- System Response — ECM derate behavior, warning lamp activation, Caterpillar Electronic Technician (ET) diagnostics
- Test Step 1: Check the Cooling System — reference to Testing and Adjusting, “Cooling System – Check”
Applicable truck models
This document applies to the Caterpillar C15 On-Highway Truck Engine in MXS configuration (serial numbers MXS00001-UP). It falls within the broader C15 engine family that also includes NKS and RKS configurations. The diagnostic code and troubleshooting steps are specific to these engine builds equipped with the Caterpillar Engine Control Module (ECM). For additional product support and technical resources, visit Caterpillar’s official support page.
Who needs this C15 coolant temperature DTCs manual
Diesel mechanics and workshop owners diagnosing a C15 engine that displays DTC 0110-00 with an illuminated check engine lamp or warning lamp will find this document essential. It is also critical for technicians using Caterpillar Electronic Technician (ET) software who need to understand the derate conditions and customer password requirements for clearing this code.
The document explains that the ECM sets diagnostic code 0110-00 when engine coolant temperature exceeds 109 °C (228 °F) for more than ten seconds and the engine has been running for at least 30 seconds. Upon activation, the status for “Engine Coolant Temperature” on Caterpillar ET will show “DIAG,” and the engine will be derated — reducing both engine power and vehicle speed proportionally to the measured temperature. If the “Engine Monitoring” parameter is programmed to “Warning,” however, engine power is not affected. A high coolant temperature lamp, if installed, will illuminate instead of the standard warning lamp. The troubleshooting procedure directs the technician to perform a cooling system check as outlined in the referenced Testing and Adjusting section.
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
