TROUBLESHOOTING FLASH CODE 86
Perform the following steps to verify repairs.
1. Turn ignition switch OFF.
2. Reconnect all connectors.
3. Turn ignition ON.
4. Clear codes.
5. Start and run the engine for one minute.
6. Stop engine.
7. Check DDR for inactive codes.
[a] If no codes are logged, troubleshooting is complete.
[b] If code 73/3 is not logged, and other codes are logged, refer to section 9.1, to service
[c] If code 73/3 is logged, and other codes are logged, all system diagnostics
are complete. Review this section from the first step to find the problem.
Refer to section 86.3.1.
All information subject to change without notice.
6SE497 9709 Copyright © 1997 DETROIT DIESEL CORPORATION