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MX-M1100 SELF DIAG AND TROUBLE CODE 8 – 27
L4-50
Process cooling fan 1 trouble
L4-51
Process cooling fan 2 trouble
L4-52
Process cooling fan 3 trouble
L4-53
Process cooling fan 4 trouble
L4-54
PS cooling fan trouble
L4-55
Process cooling fan trouble
L6-10
Polygon motor trouble
L8-01
NO full wave signal
L8-05
No full wave signal (PCU detection)
Detail
The lock signal is detected during operation of the
process cooling fan
process cooling fan
Section
PCU
Cause
Harness connection trouble between the PCU PWB and
the fan motor.
PCU PWB trouble. Fan motor trouble.
The fan is not rotating due to other trouble.
(Power is not supplied to the fan motor.)
the fan motor.
PCU PWB trouble. Fan motor trouble.
The fan is not rotating due to other trouble.
(Power is not supplied to the fan motor.)
Check &
Remedy
Remedy
Use Sim. 6-2 to check the operation of the fan motor.
Check the harness and the connector between the PCU
PWB and the fan motor.
Replace the PCU PWB. Replace the fan motor.
Check the harness and the connector between the PCU
PWB and the fan motor.
Replace the PCU PWB. Replace the fan motor.
Detail
The lock signal is detected during operation of the
process cooling fan
process cooling fan
Section
PCU
Cause
Harness connection trouble between the PCU PWB and
the fan motor.
PCU PWB trouble. Fan motor trouble.
The fan is not rotating due to other trouble.
(Power is not supplied to the fan motor.)
the fan motor.
PCU PWB trouble. Fan motor trouble.
The fan is not rotating due to other trouble.
(Power is not supplied to the fan motor.)
Check &
Remedy
Remedy
Use Sim. 6-2 to check the operation of the fan motor.
Check the harness and the connector between the PCU
PWB and the fan motor.
Replace the PCU PWB. Replace the fan motor.
Check the harness and the connector between the PCU
PWB and the fan motor.
Replace the PCU PWB. Replace the fan motor.
Detail
The lock signal is detected during operation of the
process cooling fan
process cooling fan
Section
PCU
Cause
Harness connection trouble between the PCU PWB and
the fan motor.
PCU PWB trouble. Fan motor trouble.
The fan is not rotating due to other trouble.
(Power is not supplied to the fan motor.)
the fan motor.
PCU PWB trouble. Fan motor trouble.
The fan is not rotating due to other trouble.
(Power is not supplied to the fan motor.)
Check &
Remedy
Remedy
Use Sim. 6-2 to check the operation of the fan motor.
Check the harness and the connector between the PCU
PWB and the fan motor.
Replace the PCU PWB. Replace the fan motor.
Check the harness and the connector between the PCU
PWB and the fan motor.
Replace the PCU PWB. Replace the fan motor.
Detail
The lock signal is detected during operation of the
process cooling fan
process cooling fan
Section
PCU
Cause
Harness connection trouble between the PCU PWB and
the fan motor.
PCU PWB trouble. Fan motor trouble.
The fan is not rotating due to other trouble.
(Power is not supplied to the fan motor.)
the fan motor.
PCU PWB trouble. Fan motor trouble.
The fan is not rotating due to other trouble.
(Power is not supplied to the fan motor.)
Check &
Remedy
Remedy
Use Sim. 6-2 to check the operation of the fan motor.
Check the harness and the connector between the PCU
PWB and the fan motor.
Replace the PCU PWB. Replace the fan motor.
Check the harness and the connector between the PCU
PWB and the fan motor.
Replace the PCU PWB. Replace the fan motor.
Detail
The lock signal is detected during operation of the PS
cooling fan
cooling fan
Section
PCU
Cause
Harness connection trouble between the PCU PWB and
the fan motor.
PCU PWB trouble. Fan motor trouble.
The fan is not rotating due to other trouble.
(Power is not supplied to the fan motor.)
the fan motor.
PCU PWB trouble. Fan motor trouble.
The fan is not rotating due to other trouble.
(Power is not supplied to the fan motor.)
Check &
Remedy
Remedy
Use Sim. 6-2 to check the operation of the fan motor.
Check the harness and the connector between the PCU
PWB and the fan motor.
Replace the PCU PWB. Replace the fan motor.
Check the harness and the connector between the PCU
PWB and the fan motor.
Replace the PCU PWB. Replace the fan motor.
Detail
The lock signal is detected during operation of the
process cooling fan
process cooling fan
Section
PCU
Cause
Harness connection trouble between the PCU PWB and
the fan motor.
PCU PWB trouble. Fan motor trouble.
The fan is not rotating due to other trouble.
(Power is not supplied to the fan motor.)
the fan motor.
PCU PWB trouble. Fan motor trouble.
The fan is not rotating due to other trouble.
(Power is not supplied to the fan motor.)
Check &
Remedy
Remedy
Use Sim. 6-2 to check the operation of the fan motor.
Check the harness and the connector between the PCU
PWB and the fan motor.
Replace the PCU PWB. Replace the fan motor.
Check the harness and the connector between the PCU
PWB and the fan motor.
Replace the PCU PWB. Replace the fan motor.
Detail
It is judged that the lock signal of the LSU polygon
motor is not outputted.
When the lock signal is checked 7sec after starting the
polygon motor rotation, it is judged that the polygon
motor does not rotate normally.
motor is not outputted.
When the lock signal is checked 7sec after starting the
polygon motor rotation, it is judged that the polygon
motor does not rotate normally.
Section
PCU
Cause
Disconnection or breakage of the LSU connector or the
harness inside the LSU.
Polygon motor trouble. LSU PWB trouble.
harness inside the LSU.
Polygon motor trouble. LSU PWB trouble.
Check &
Remedy
Remedy
Check the polygon motor operation with Sim. 61-1.
Check connection of the harness and the connector.
If the trouble still remains, replace the LSUcnt PWB or
replace the LSU PWB.
Check connection of the harness and the connector.
If the trouble still remains, replace the LSUcnt PWB or
replace the LSU PWB.
Detail
No full wave signal is detected
Section
ICU / P-CON
Cause
PCU PWB trouble.
Power unit trouble.
Harness trouble.
Power unit trouble.
Harness trouble.
Check &
Remedy
Remedy
Replace the PCU PWB. Replace the power unit.
Check connection of the connector and the harness.
Check connection of the connector and the harness.
Detail
The full wave signal is not detected (PCU detection)
Section
PCU
Cause
Disconnection or breakage of the connector to the PCU
PWB or the harness in the power unit.
PCU PWB trouble. Power unit trouble.
PWB or the harness in the power unit.
PCU PWB trouble. Power unit trouble.
Check &
Remedy
Remedy
Check connection of the harness and the connector.
Replace the PCU PWB. Replace the power unit.
Replace the PCU PWB. Replace the power unit.
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