Code: C-1202
Classification: LS (1st tandem): LS abnormality
Cause:
The shift unit home sensor (PS11) does not turn ON within a specified period of time after the shift unit motor (M5) turns ON. Or, PS11does not turn ON within a specified period of time.
Measures to take when alert occurs:
The main body and the option stop immediately.
Estimated abnormal parts:
- Shift unit motor (M5)
- Shift unit home sensor (PS11)
- LS control board (LSCB)
Correction:
Press the help key, and activate and deactivate the sub power switch (SW2) of the main body.
Note:
- Faulty part isolations allows you to use the machine temporarily.
- When you press the help key, the messages "Please call service" and "Press [Help] to disengage" are alternately displayed.
- When you press the help key, the message "Please turn on power again" is displayed.
Solution:
- Check the shift unit section, and clean/repair it if any abnormality.
- Check the connector connection and the wiring between LSCB and motor/sensor, and repair it if any abnormality.
- Check the I/O drive of the motor and the coupling of the gear, and repair and replace it if any abnormality is found. (Wiring diagram: LS-505: 6-A, LS-506: 6-A)
- Check I/O and the operation of the sensor, and repair and replace it if abnormality is found. (Wiring diagram: LS-505: 5-H, LS-506: 4-H)
- Replace PS11.
- Replace M5.
- Replace LSCB.