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SEN00793-02
E-11 Fuel level monitor red lamp lights up while engine is running
Failure
• Fuel level monitor red lamp lights up while the engine is running.
phenomenon
Relative
• If the fuel gauge shows in a red range on the machine monitor, the fuel level monitor lamp lights up
information
red.
Fuel level lowered
1
(system in normal
condition)
Fuel level sensor fault
2
(Internal disconnection)
Presumed cause
and
standard value in
Disconnection of wiring
normalcy
harness
3
(Disconnection or defec-
tive contact with connector)
4 Defective machine monitor
Circuit diagram related to fuel level sensor
26
Cause
Standard value in normalcy and references for troubleshooting
Check the fuel level in the fuel tank. If it is low, add fuel.
aTurn the engine starting switch OFF for the preparations, and hold it in
the OFF position during the troubleshooting.
(1) – chassis ground
aTurn the engine starting switch OFF for the preparations, and hold it in
the OFF position during the troubleshooting.
Wiring harness between CM02 (female) (2) –
P21 (female) (1)
aTurn the engine starting switch OFF for the preparations, and hold it in
the OFF position during the troubleshooting.
CM02 (female)
(2) – chassis ground
P21 (male)
Fuel level
FULL (Upper limit)
Between
EMPTY (Lower limit)
Fuel level
FULL (Upper limit)
Between
EMPTY (Lower limit)
40 Troubleshooting
Resistance
Approx. 12 z
85 – 110 z
Resis-
Max. 1 z
tance
Resistance
Approx. 12 z
85 – 110 z
PC800, 850-8
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Troubleshooting
