7.1
DDEC ECM SOFTWARE FEATURES
Vehicle Speed Limit = Yes/No; Maximum speed = XX mph. Limited to the calculated gear bound
vehicle speed at rated engine r/min, or if progressive shift = yes, then max cruise speed is limited
to high gear r/min. (XX refers to customer selections.)
7.1.31
Variable Speed Governor or Limited Speed Governor Vehicle Speed
Limiting Diagnostics
If low side diagnostics need to be enabled or disabled, this is set on the mainframe.
Low side diagnostics refers to throttle position sensor (TPS) or variable speed governor (VSG)
"low volt" codes. This occurs when an ECM is configured to be looking for a signal at one of
these items, but nothing is wired to it.
7.1.32
Vehicle Speed Sensor Anti-Tamper
Vehicle Speed Sensor (VSS) anti-tamper can be set with the DDR, or special ECM software
available via parts.
Once set, VSS anti-tamper requires 5.0 level DDR or higher to disable.
All information subject to change without notice.
7-12
6SE497 9709 Copyright © 1997 DETROIT DIESEL CORPORATION
