DDEC TROUBLESHOOTING
3. Turn ignition ON.
4. Clear codes with DDR.
5. Start and run the engine for one minute.
6. Stop engine.
7. Check DDR for codes.
[a] If no codes are displayed, troubleshooting is complete.
[b] If CEL is on with code 249/12 logged, all system diagnostics are complete. To
troubleshoot the error, refer to section 57.3.1.
All information subject to change without notice.
6SE497 9709 Copyright © 1997 DETROIT DIESEL CORPORATION
57-7
