Fiat Kobelco EX355 Tier2, Техническое руководство

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T5-4-58 EX355
TROUBLESHOOTING B
TROUBLESHOOTING FOR OTHER FUNC-
TIONS
O-1 Wiper Does Not Operate, or Retract.
Related Fault Code: None
Checking Instructions
•
The wiper is controlled by a wiper box in which the
relay circuit are operated by the monitor panel.
•
When the wiper does not work, check first that the
motor and the relevant linkage are operative, using
an auxiliary power source and the test herness.
•
If the wiper motor works properly when is powered
throught the test harness, check the upper latch of
front window and wiper cut-off switch for proper
operation.
NOTE - When the wiper motor is
normal, lamp S comes ON while
the wiper is moving within the
operating range. Then, only
when the wiper reaches the in-
termittent stop position, both
lamps B and S light for a moment
at the same time.
YES
As illustrated to
the right, connect
test harness
(75301706C)
between power
outlet and wiper
motor. Check if
wiper operates.
Remove the test
harness and
reconnect the
disconnected
harness to the
original position.
Faulty wiper
motor or link
NO
YES
Faulty wiper box.
Replace the
monitor assembly.
Check if wiper
operates.
NO
YES
End
Faulty cab
harness
NO, or lamp
does not light
normally.
•
Key switch: ON
•
Key switch: ON
•
The windshield wiper motor and washer pump con-
trol relays are moulded inside the wiper controller
and cannot be replaced. The wiper controller must
be considered as an assembly.
Check correct
operation of wiper
cut-off switch.
NO
Faulty wiper cut-
off switch.
YES