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Troubleshooting for SC Errors
Troubleshooting
Troubleshooting
Troubleshooting
6.12.5 ISOLATION DIAGRAM OF SC663, 664, 665, 667, 668, AND 670-01
The modules considered to be the cause of SC663, 664, 665, 667, 668 and 670-01 are as follows.
6.12.6 WHEN SC670 (ENGINE START UP ERROR) IS DISPLAYED
Causes
The engine board resets at an unexpected time, and does not start up again.
Solutions
Note: CTL = Controller
SC670-01
Engine start up error when the machine boots up
If the symptom occurs, use the following chart to decide the best course of action.
Troubleshooting for SC Errors
SC670-02
Engine start up error when the machine is in operation.
Replace the part in order of precedence stated below (since there is a high possibility that those parts are broken and causing the error).
1. Replace BCU
2. Replace IPU
3. Replace CTL
4. Replace PSU
SC670-03
IPU start up error when the machine boots up.
Replace the part in order of precedence stated below (since there is a high possibility that those parts are broken and causing the error).
1. Replace IPU
2. Replace CTL
3. Replace PSU
4. Replace BCU.
SC670-04
Communication error between the engine and controller.
Replace the part in order of precedence stated below (since there is a high possibility that those parts are broken and causing the error).
1. Replace IPU
2. Replace BCU
3. Replace CTL