TROUBLESHOOTING
M-22
M-22 Defective engine oil level sensor system
Note 1: Variations in oil level
The oil level may change according to the angle of the machine, the engine speed, or the temperature of
the oil, so if there is any display, check the oil level again with the machine at a horizontal place.
* Remove the engine oil level sensor when carrying out troubleshooting.
‘I
resistance between
connector (11 and
flange as shown in
Es
I
NO
I
I I
NO
Check wiring
harness visually.
Is it broken?
H
I
II
NO
Cause
Defective movement of float
due to dirt
Resonance of mount
Defective contact of
connector (Note 2)
Disconnection in wiring
harness (Note 3) (defective
clamp) (external force
applied)
Defective sensor
UP
lean
eplace sensor
Jote 4)
lean connector
r replace
,eplace sensor
leplace
Note 2: If the problem occurs again, the connector (female) at the chassis end is probably defective, so check the
connector and wiring harness at the chassis end.
Note 3: Check for vibration at the connector mount. If there is excessive vibration, take the appropriate action.
Note 4: Defective installation is a possible cause, so be careful when installing. If the problem occurs again, check
for any vibration of the mount,
and if there is excessive vibration, take the appropriate action.
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