Motor Control Module; Engine Harness; Figure 3-1 Motor Control Module - Detroit Diesel DDEC VI Application And Installation

DDEC VI ELECTRONIC CONTROLS APPLICATION AND INSTALLATION
3.1

MOTOR CONTROL MODULE

The engine mounted Motor Control Module (MCM) includes control logic to provide overall
engine management. See Figure 3-1.
1. 21–pin Connector (OEM Responsibility) 2. 120–pin Connector (Detroit Diesel Responsibility)
Figure 3-1 Motor Control Module
NOTE:
Do NOT ground the MCM housing. This can result in false codes being logged.
3.1.1

ENGINE HARNESS

The MCM has a 120–pin connector Engine Harness which is factory installed. It also has a
21–pin connector and 31–pin connector which are the responsibility of the OEM.
3-3
All information subject to change without notice. (Rev. 01/07)
7SA827 0701 Copyright © 2007 DETROIT DIESEL CORPORATION