DDEC TROUBLESHOOTING
2. Reconnect all connectors.
3. Turn ignition ON.
4. Clear codes with DDR.
5. Start and run the engine for one minute at all throttle positions.
6. Stop engine.
7. Read active codes.
[a] If no codes are logged, troubleshooting is complete.
[b] If code 91/4 and any other codes are logged, all system diagnostics are complete.
Review this section from the first step to find the error. Refer to section 22.3.1.
[c] If code 91/4 is not logged, but other codes are logged, refer to section 9.1.
All information subject to change without notice.
6SE497 9709 Copyright © 1997 DETROIT DIESEL CORPORATION
22-13
