MBE 4000 SERVICE MANUAL 6SE412 15.1 ELECTRONIC ENGINE CONTROL SYSTEM When the electronic engine control system detects a fault, it broadcasts a message on the datalink. The dash display will show the code "ECU 128," indicating there is an engine fault. NOTE: To read the complete fault code, refer to the MBE Electronic Controls Troubleshooting Guide (6SE422) or bring the vehicle to an authorized repair facility. Complete fault codes can be read using minidiag2. All information subject to change without notice. (Rev. 2007) 6SE412 0702 Copyright © 2007 DETROIT DIESEL CORPORATION From Bulletin 1–MBE 4000–07 15-3