DDEC VI SYSTEM the parking brake is not set. Activating or momentarily changing the position of the service brake pedal, the clutch pedal, Stop Engine Override, the accelerator pedal, or park brake status during the final 30 seconds before a shutdown would otherwise occur will prevent the engine from shutting down and will reset the shutdown timer. After an automatic shutdown, the engine may be restarted and operated normally.
The automatic shutdown feature is generally disabled on engines certified by the US EPA for use outside California but is required to be enabled for all California certified engines with the exception of engines used in specific vehicle types which the state of California has determined to be exempt from the idle shutdown requirement. These include buses, school buses, recreational vehicles, medium duty vehicles, military tactical vehicles, and authorized emergency vehicles as they are defined by the state of California.
Owners of these vehicle types that wish to have the shutdown feature disabled should consult with California authorities to determine if their vehicles qualify for the exemption. eliminating excessive idling and allowing a turbocharger cool-down period. To activate the shutdown, the transmission must be in neutral with the vehicle parking brakes set and the engine in idle or fast-idle mode. DDEC VI 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 DC. 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. See Figure 21. Idle Shutdown Timer This feature is an optional 1 100 minute idle shutdown system. Its purpose is to conserve fuel by Figure 21 Warning Lamps and SEO Switch 46 All information subject to change without notice. (Rev. 04/08) DDC-SVC-MAN-0040 0704 Copyright © 2008 DETROIT DIESEL CORPORATION