Fiat Kobelco EX355 Tier2, Техническое руководство

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T5-4-30 EX355
TROUBLESHOOTING B
E-11 Engine is Hard to Start at Low Ambient
Temperature.
(Even if preheated, engine is hard to start or
does not start at a low ambient temperature
or in a cold climate district.)
Related Fault Code: None
Checking Instruction
•
Check if electricity is conducted to glow plugs and
glow plugs are normal.
Disconnect engine coolant
temperature switch. Check if
voltage at glow plug is 20 to
24 V.
•
Key switch: ON
•
Measurement of Glow Plug Voltage and Resistance
SM4049 SM4050
Standard: 20 to 24 V
Faulty QOS controller.
With engine coolant
temperature switch, and glow
relay disconnected, check if
voltage at glow relay harness
end connector terminal No.1
and No.3 is 20 to 24 V.
Faulty engine coolant tempe-
rature switch.
With engine coolant tempera-
ture switch
disconnected, ground glow
relay terminal No.4 to vehicle
frame. Check if voltage at
glow plug is 20 to 24 V.
•
Key switch : ON
•
Without removing connector,
ground the terminal to vehicle
frame using a jumper wire,
like a clip, from the reverse
side of the connector.
YES
NO
YES
NO
Remove
Copper
Plates.
Standard: 10
Ω
or Less