11-187
TROUBLESHOOTING
2-9-2. Combination meter warning lamp or indicator lamp is abnormal
Reference Fig. : 2-9-1
Check point
Check/Cause
Action
1. Harness
Disconnect connectors between combination meter and
lamp check relay.
Measure resistance between terminals and chassis
ground.
Combination meter connector terminal wire No. 24 wire
YG and chassis ground
Lamp check relay terminal 3 wire YG and chassis
ground
Standard resistance : 100 kΩ or more
If resistance is abnormal, harness is faulty.
•
•
•
•
•
Repair or replace
harness.
2. Lamp Check Relay
(1) when starter switch is ON, measure voltage between
lamp check relay terminal 1 inlet wire LgW and chassis
ground.
Standard voltage : 12 V or more
(2) After starting engine, measure voltage between lamp
check relay terminal 2 outlet wire LgB and chassis
ground.
Standard voltage : 12 V or more
(3) After starting engine, check continuity between lamp
check relay terminal 3 and terminal 5.
There is no continuity in normal condition.
If above items (1) and (2) are OK and item (3) is NG, lamp
check relay is faulty.
If above item (2) is NG, alternator is faulty.
•
•
Repair or replace lamp
check relay or alternator.
3. Combination Meter
(Lamp check)
(1) when starter switch is ON, measure voltage between
combination meter terminal wires and ground terminal
wire.
Battery terminal wire No. 155 inlet wire R and ground
terminal wire B
Starter switch terminal wire No. 64 inlet wire LgW and
ground terminal wire B
Standard voltage : 12 V or more
(2) when starter switch is ON, check that parking brake
indicator lamp, hydraulic oil filter warning lamp, engine
oil pressure warning lamp and electrical charge warning
lamp illuminate and then go out after starting engine.
If above item (1) is OK and the item (2) is NG,
combination meter is faulty.
(NOTICE)
Since engine cannot start unless parking brake switch
is applied and F-R lever is “N”, parking brake indicator
lamp does not go out even after starting engine.
•
•
•
•
Replace combination
meter.
Содержание SW880-1
Страница 1: ...SW880 1 990 1 SHOP MANUAL 3498 6568A 0 ...
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Страница 15: ...SAFETY ...
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Страница 25: ...SPECIFICATIONS ...
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Страница 39: ...ENGINE AND CONTROLS ...
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Страница 47: ...HYDRAULIC SYSTEMS ...
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Страница 83: ...ELECTRICAL SYSTEM ...
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Страница 125: ...VIBRATORY DRUM ...
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Страница 171: ...BRAKE ...
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Страница 179: ...WATER SPRAY SYSTEM ...
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Страница 183: ...INSPECTION AND ADJUSTMENT ...
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Страница 209: ...TROUBLESHOOTING ...
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