Sakai TW504 - Hydraulic Oil Filter Warning Lamp Remains on; Charge Warning Lamp Remains on

10-060
TROUBLESHOOTING
2-6-12. Hydraulic oil lter warning lamp remains ON
Reference Fig. : 2-6-2
Check point Check/Cause Action
1. Harness Disconnect connectors between combination meter and
hydraulic oil lter switch.
Measure resistance between terminals and chassis
ground.
Hydraulic oil lter switch terminal wire LR and chassis
ground.
Combination meter connector terminal wire No.53
wire LR and chassis ground.
Standard resistance : 100k Ω or more
If resistance is abnormal, harness is faulty.
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Repair or replace
harness.
2. Hydraulic Oil Filter
Switch
When starter switch is OFF, check continuity between
hydraulic oil lter switch inlet terminal wire LR and chassis
ground.
There is no continuity in normal condition.
If there is continuity, hydraulic oil lter switch is faulty.
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Replace hydraulic oil
lter switch.
3. Combination Meter
(Hydraulic oil lter
warning)
(1) When starter switch is ON, measure voltage between
combination meter terminal wires and ground terminal
wire.
Battery 12 V (+) terminal wire No.12 inlet wire Y and
ground terminal wire B
Starter switch (ACC) terminal wire No.11 inlet wire
BrB and ground terminal wire B
Standard voltage : 12 V or more
(2) When starter switch is ON, measure voltage between
combination meter hydraulic oil lter warning terminal
outlet wire No.53 wire LR and chassis ground.
Standard voltage : 12 V or more
If above items (1) and (2) are OK but hydraulic oil
lter warning lamp remains on after starting engine,
combination meter is faulty.
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Replace combination
meter.
2-6-13. Charge warning lamp remains ON
Check with engine running.
Reference Fig. : 2-6-2
Check point Check/Cause Action
1. Harness Disconnect connectors between combination meter and
alternator terminal L.
Measure resistance between terminals and chassis
ground.
Combination meter connector terminal wire No.17
wire WR and chassis ground.
Alternator terminal L wire WR and chassis ground
Standard resistance : 100k Ω or more
If resistance is abnormal, harness is faulty.
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Repair or replace
harness.
2. Combination Meter
(Charge warning lamp)
Measure voltage between combination meter charge
warning terminal wire No.17 outlet wire WR and chassis
ground.
Standard voltage : 12 V or more
If no abnormality is found, combination meter is faulty.
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Replace combination
meter.
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