Fiat Kobelco EX355 Tier2, Technical Manual

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T5-6-12 EX355
ELECTRICAL SYSTEM INSPECTION
5 Voltage Circuit
•
Voltage between terminal No.1 and the vehicle
frame (ground)
With the key switch turned OFF, disconnect the
sensor connector.
Measure the voltage between terminal No.1 on the
machine harness side connector and the vehicle
(ground) under the following conditions.
•
Key switch position: ON
•
Tester black terminal (negative):
Connected to the vehicle (ground)
•
Tester red terminal (positive):
Connected to terminal No.1
Evaluation:
If the measuring voltage is within 5
±
0.5 volts, the
circuit up to terminal No.1 is normal.
•
Voltage between terminal No.1 and the ground
terminal
With the key switch turned OFF, disconnect the
sensor connector.
Measure the voltage between terminal No.1 on the
machine harness side connector and the ground
terminal (terminal No.2 for two polarities, or termi-
nal No.3 for three polarities) under the following
conditions.
•
Key switch position: ON
•
Tester black terminal (negative):
Connected to the ground terminal
(terminal No.2 or 3)
•
Tester red terminal (positive):
Connected to terminal No.1
Evaluation:
If the measuring voltage is within 5
±
0.5 volts, the
circuit up to terminal No.1 or the ground terminal is
normal.
SM0664
SM0665
SM0666
SM0667
Two polarities Power source
1 2
Signal or
ground
V
1 2 3
V
Three polarities
Power source Signal Ground
V
1 2
Two polarities
1 2 3
Three polarities
V