DDEC TROUBLESHOOTING
76.3 TROUBLESHOOTING FLASH CODE 76
Perform the following steps to troubleshoot Flash Code 76.
76.3.1
Multiple Code Check
Perform the following steps to check for multiple codes.
1. Turn vehicle ignition switch ON.
2. Plug in the diagnostic data reader (DDR).
3. Visually check the DDR for codes.
[a] If codes other than 121/0 are logged, service them first.
[b] If code 121/0 is logged, and no other codes are logged, there was an engine running
condition at which the engine r/min exceeded a calibration limit during engine
brake operation.
NOTE:
Determine the reason the engine r/min went too high.
All information subject to change without notice.
6SE497 9709 Copyright © 1997 DETROIT DIESEL CORPORATION
76-5
