EuroV MBE 900 Operators Manual 5 Detroit Diesel Electronic Control System Operation 5.1 Detroit Diesel Electronic Control System Operation NOTE: This engine is equipped with DDEC software. This software generally assures optimal engine performance. The installation of software upgrades may cause minor changes in features and engine performance. Since the DDEC system is electronic, a battery is required to operate the computer. The system operates at 12 volts. However, in the event of a power supply malfunction, the system will continue to operate at reduced voltage. When this occurs, the AWL (Check Engine) will come on.
The engine will only operate at reduced rpm until the battery voltage reaches a point where the MCM will no longer function and the engine shuts down. Should the AWL (Check Engine) come on for any reason, the vehicle can still be operated and the driver can proceed to the required destination. This condition should be reported to an authorized Detroit™ distributor or dealer. NOTICE: When the RSL (Stop Engine) comes on, the system has detected a major malfunction in the engine that requires immediate attention. It is the operator's responsibility to shut down the engine to avoid serious damage.
The "Stop Engine Override" feature can be activated in the case where the vehicle is operating in a critical location. 5.1.1 Stop Engine Override Switch This feature allows the operator to override the automatic Stop Engine sequence. This is done by pressing the Stop Engine Override Switch every 15 to 20 seconds to prevent engine shutdown from occurring. All information subject to change without notice. 17 DDC-SVC-MAN-0207 Copyright © 2019 DETROIT DIESEL CORPORATION