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.

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
  4. Replace PSU