TROUBLESHOOTING FLASH CODE 66
1. Hook up all connectors.
2. Start and run the engine.
3. Operate under load. Road test.
4. Turn engine off.
5. Turn ignition ON.
6. Plug in DDR. Read logged codes.
[a] If no codes are logged, troubleshooting is complete.
[b] If code s 076-X is logged, all system diagnostics are complete. Please review this
section from the first step to find the problem. Refer to section 66.3.1, or contact
Detroit Diesel Technical Service.
All information subject to change without notice.
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