Sakai SV201-1, Shop Manual

Page: 217 / 238

9-040
TROUBLESHOOTING
2-5-7. Hydraulic oil filter warning lamp remains ON
Reference Fig. : 2-5-1
Check point Check/Cause Action
1. Hydraulic Oil Filter
Switch
When starter switch is OFF, check continuity between
hydraulic oil filter switch inlet terminal and chassis ground.
There is no continuity in normal condition.
If there is continuity, hydraulic oil filter switch is faulty.
•
•
Replace hydraulic oil
filter switch.
2-5-8. Engine oil pressure warning lamp remains ON
Reference Fig. : 2-5-1
Check point Check/Cause Action
1. Harness Disconnect connectors between combination meter and
engine oil pressure switch.
Measure resistance between terminals and chassis
ground.
Combination meter connector terminal wire No.8 wire
YL and chassis ground.
Engine oil pressure switch terminal wire YL and chassis
ground.
Standard resistance : 100 kΩ or more
If resistance is abnormal, harness is faulty.
•
•
•
•
•
Repair or replace
harness.
2. Engine Oil Pressure
Switch
Disconnect engine oil pressure switch and check
continuity between its terminals.
There is continuity in normal condition.
If there is continuity, engine oil pressure switch is faulty.
•
•
Replace engine oil
pressure switch.
3. Combination Meter
(Engine oil pressure
warning indicator lamp)
(1) When starter switch is ON, measure voltage between
combination meter terminal wires and ground terminal
wire.
Battery terminal inlet wire No. 35 inlet wire YW and
ground terminal wire B.
Starter switch terminal inlet wire No. 28 inlet wire LgW
and ground terminal wire B.
Standard voltage : 12 V or more
(2) When starter switch is ON, measure voltage between
combination meter engine oil pressure warning terminal
outlet wire No. 8 wire YL and chassis ground.
Standard voltage : 12 V or more
If above items (1) and (2) are OK and no abnormality
is found in engine oil pressure switch but engine oil
pressure warning lamp remains on after starting engine,
combination meter is faulty.
•
•
•
Replace combination
meter.