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*
3
Switch the master and slave control unit.
Start the engine and check the overload warning light.
LIGHT OFF
Wire harness inspection.
Check the LED harness and communication line.
GOOD
Replace the both con-
trol units.
*
4
Measure the voltage of the 5-pole couplers on master
and slave side of the control unit.
Master side Y-G 24V
Slave side R-Br 24V
GOOD
Check the wire harness
connection.
*
4
LIGHT ON
Replace
the
original
master side of the control
unit.
NOT GOOD
Replace the wire har-
nesses.
NOT GOOD
Replace the interface
unit.
GENERATOR SYSTEM
*
5
Wire harness inspection.
Check connection of the output wire harness including
control box.
GOOD
Replace the interface
unit.
*
5
Disconnect the 2-pole coupler (black) of the slave side
and both communication lines from the control unit
and also 7-pole coupler and 8-pole coupler from the
interface unit.
Start the engine and check the overload warning light
(within 10 seconds).
LIGHT ON
Replace
the
master side of the control
unit.
Switch the master and slave control unit.
Start the engine and check the overload warning light.
LIGHT ON
Replace
the
slave side of the control
unit.
*
7
The control unit power will be cut off after 10 sec-
onds of disconnecting the 2-pole coupler (black).
Therefore, start the engine and check the overload
warning light within 10 seconds.
20
ELEC
*
6
NOT GOOD
Correct the wire harness
connection.
*
7
LIGHT OFF
original
LIGHT OFF
Replace the interface
unit.
original
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