DDEC TROUBLESHOOTING
10.5.7
Check Diagnostic Data Reader on Another Engine
Follow this procedure to check the DDR on another engine:
1. Connect the DDR to another engine and read any parameter in the menu.
[a] If the procedure worked okay, refer to section 10.5.8.
[b] If the procedure did not work, the DDR is probably defective. Refer to the DDR
instruction manual for repair.
10.5.8
Verify Repairs
Perform the following steps to verify repairs:
1. Turn ignition OFF.
2. Reconnect all connectors.
3. Turn ignition ON.
4. Clear codes.
5. Turn ignition OFF.
6. Turn ignition ON.
7. Note status of CEL.
8. Start and run the engine for one minute.
9. Read inactive codes.
[a] If the DDR display reads NO DATA BEING RECEIVED FROM DATA LINK or
DDEC SYSTEM NOT RESPONDING, all system diagnostics are complete. Review
this section from the first step to find the error. Refer to section 10.5.1.
[b] If the engine starts and no codes are read on the DDR, repairs are complete.
[c] If the engine starts and code displays, refer to section 9.1.
All information subject to change without notice.
6SE497 9709 Copyright © 1997 DETROIT DIESEL CORPORATION
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