Detroit Diesel DDEC II and III Wiring Diagrams. Detroit Diesel DDEC II and III Wiring Di. Adobe Acrobat Document 993.1 KB. Download.. Detroit Diesel DDEC Multi-ECM Troubleshooting Manual [PDF] 6.2Mb. Download. Detroit Diesel DDEC V Vehicle Interface Harness [PDF] 226.9kb. Download.. Wiring 16 gauge wire, 4 Power, 2 Ground. If any code(s) other than code 25 is logged, refer to the Detroit Diesel DDEC III/IV Single ECM Troubleshooting Manual (6SE497). PERSONAL INJURY.
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3.2.2 ECM PART NUMBERS Part numbers for DDEC III and IV ECMs are listed in Table 3-3. Part Number Description Voltage No. of Cylinders 23518645* DDEC III - Standard On-highway ECM 12/24 V 6 23518743 DDEC III - Universal ECM 12/24 V 8 23518744 DDEC III - Series 4000 ECM only 24 V 8 23519307 DDEC IV - Standard On-highway ECM 12 V 6. 02/09/94 f540680 NOTE: Connector end views are shown from the cable insertion end. Fig. 3 Fig. 2, DDEC II Wiring Diagram (enlarged portion of Figure 1) 54.17 Detroit Diesel Electronic Controls (DDEC®) Wiring Specifications 400/2 Heavy-Duty Trucks Service Manual, Supplement 23, December 1999