DDEC TROUBLESHOOTING
11.1 DESCRIPTION OF FLASH CODE 11
Flash Code 11 indicates that the Variable Speed Governor (VSG) input to the ECM has dropped
below 5% (normally < 0.25 volts) of the sensor supply voltage. This diagnostic condition is
typically:
Open sensor signal circuit (No VSG throttle control installed.)
Open sensor +5 volt supply circuit
Sensor signal is shorted to the sensor return circuit or to ground
Sensor +5 volt supply is shorted to sensor return circuit or to ground (This condition will
result in numerous sensor codes.)
All information subject to change without notice.
6SE497 9709 Copyright © 1997 DETROIT DIESEL CORPORATION
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