Sakai SV400D-2, Shop Manual

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9-033
ELECTRICAL SYSTEM TROUBLESHOOTING
2-5-6. Hydraulic oil filter warning lamp remains ON
Check without starting the engine.
Reference Fig. : 2-5
Check point Check/Cause Action
1. Hydraulic Oil Filter
Switch
- Turn the starter switch ON and check continuity between the
hydraulic oil filter switch inlet terminal and chassis ground.
- No continuity indicates normal condition. If any continuity is
present, the hydraulic oil filter switch is faulty.
Replace the
hydraulic oil filter
switch.
2-5-7. Oil pressure warning lamp remains ON
Check without starting the engine.
Reference Fig. : 2-5
Check point Check/Cause Action
1. Oil Pressure Switch - Turn the starter switch ON and check continuity between the
oil pressure switch inlet terminal and chassis ground.
- No continuity indicates normal condition. If any continuity is
present, the oil pressure switch is faulty.
Replace the oil
pressure switch.
2-5-8. Vibrator operation indicator lamp does not turn ON
Reference Fig. : 2-5
Check point Check/Cause Action
1. Bulb - Check if bulb has burnt out or is poorly connected.
- Bulb is faulty or poorly connected. Replace the bulb.
2. Diode Unit (1) Measure the voltage between the diode unit pin E inlet YR
wire or pin A inlet YB wire and chassis ground.
Standard voltage: 12 V or more
(2) Measure the voltage between the diode unit pin F inlet Br
wire and chassis ground.
Standard voltage: 12 V or more
- If above item (1) is OK and item (2) is NG, the diode unit is
faulty.
Replace the diode
unit.
3. Harness Connecting
Between Terminals
- Check harness between terminals for continuity.
- No continuity indicates that harness is open or poorly
connected.
Repair or replace the
harness.
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