DDEC TROUBLESHOOTING
66.1 DESCRIPTION OF FLASH CODE 66
Flash Code 66 indicates the oil filter sensor input to the ECM has exceeded or dropped below the
allowed range.
This code is not covered in this manual (for diesel engines). If changes occur, notification will
be sent from DDC.
For gasoline engines, Flash Code 66 indicates one or more faults have occurred in the engine
knock level circuitry.
All information subject to change without notice.
6SE497 9709 Copyright © 1997 DETROIT DIESEL CORPORATION
66-3
