This 1-page PDF is a CAT C15 J1939 troubleshooting document that covers diagnostic fault code 0231-02 (J1939 Data Incorrect, severity 58) for Caterpillar C15 on-highway truck engines. It details the conditions that generate this code, the Engine Control Module (ECM) behavior, and the resulting system response when the J1939 data link fails to communicate correctly.
Official CAT C15 J1939 troubleshooting document details
| Brand | Caterpillar (CAT) |
| Model coverage | C15 Truck Engine MXS (MXS00001-UP); also applicable to NKS and RKS configurations |
| System / Group | DTCs — SMCS 1901-038 (Data Link) |
| Publication no. | RENR5088-10 |
| Year / Revision | Published 01/02/2009, updated 25/02/2009 |
| Pages | 1 |
| File size | 0.1 MB |
| Format | |
| Language | English |
Document table of contents
- 0231-02 J1939 Data Incorrect (58) — Overview
- Conditions Which Generate This Code
- System Response
Applicable truck models
This document applies to the Caterpillar C15 On-Highway Truck Engine, specifically the MXS configuration (serial numbers MXS00001 and up). The file group listing also references NKS and RKS serial prefix configurations of the C15 engine. These powertrains are found in a wide range of Class 8 heavy-duty trucks. The ECM must have the “Powertrain Data Link” parameter programmed to J1939 for this code to be relevant. The document describes three trigger conditions: the ECM fails to receive a specific message from a device on the data link, a connected device broadcasts a fault code, or a device broadcasts a code that is not supported. When active, J1939 communications to and from the engine are terminated for the affected message. Traction control and transmission controls may be disabled, and Caterpillar Electronic Technician (ET) will display “Diag” or “J1939 No Support” next to the status. Visit Caterpillar’s official support page for additional technical resources.
Who needs this CAT C15 J1939 troubleshooting manual
Diesel mechanics and workshop owners diagnosing J1939 data link faults on C15-powered trucks will find this document essential. It is particularly useful when Caterpillar ET displays code 0231-02 and traction control or transmission features stop functioning.
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