DDEC TROUBLESHOOTING
72.1 DESCRIPTION OF FLASH CODE 72
Flash Code 72 indicates that the vehicle speed signal to the ECM (with fueling to the engine) has
exceeded the vehicle speed limit that is defined in the ECM calibration. See Figure 72-1.
Flash Code 72 also may indicate that the vehicle speed signal to the ECM (without fueling to the
engine) has exceeded a secondary vehicle speed limit that is defined in the ECM calibration.
All information subject to change without notice.
6SE497 9709 Copyright © 1997 DETROIT DIESEL CORPORATION
72-3
