This document provides an electrical circuit diagram for a 2010 Detroit DDEC III-IV engine: 1. It includes a key showing common symbols used in the diagram such as connectors, splices, circuit breakers, and fuses. 2. The diagram shows the ECM 30-way connector pin connections and colors. It provides the label, wire number, cavity, and color for each pin. 3. Abbreviations are given for common.. View and Download Detroit Diesel Engine DDEC instruction manual online.
Figure 2. DDEC III/IV System Series 60 Natural Gas Engine Any faults that occur are stored as codes in the ECM's memory. These codes can be accessed in any of three ways: A DDR can be used to read the codes. See Figure "The DDR and Printer" . A personal computer (PC) connected to the ECM through a translator device which converts J-1708 to RS232 protocol can be used. The Check Engine Light.. View and Download Freightliner DDEC II, DDEC II, DDEC III instruction manual online.