DDEC TROUBLESHOOTING
75.3 TROUBLESHOOTING FLASH CODE 75
The following procedure will troubleshoot Flash Code 75.
75.3.1
High Voltage
Perform the following steps to troubleshoot high voltage.
1. Turn ignition ON.
2. Plug in the diagnostic data reader (DDR).
3. Read logged codes.
[a] If any codes other than 168/0 are received, service the other codes first.
[b] If code 168/0 and no other codes are logged, the voltage to the ECM is too high.
Check batteries and/or vehicle charging system.
All information subject to change without notice.
6SE497 9709 Copyright © 1997 DETROIT DIESEL CORPORATION
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