9-065
TROUBLESHOOTING
2-7-11. Horn does not sound
Reference Fig. : 2-7-2
Check point
Check/Cause
Action
1. Horn
Disconnect horn and directly connect battery positive
terminal to horn terminal wire LgW side and negative
terminal to horn terminal wire B side.
If horn does not sound, horn is faulty.
•
•
Replace horn.
2. Horn Relay
(1) When starter switch is ON and horn switch is pressed,
measure voltage between horn relay terminal 2 outlet
wire Lg and chassis ground.
Standard voltage: 12 V or more
(2) When starter switch is ON and horn switch is pressed,
measure voltage between horn relay terminal 5 outlet
wire LgW and chassis ground.
Standard voltage: 12 V or more
If above item (1) is OK and item (2) is NG, horn relay is
faulty.
•
Replace horn relay.
3. Horn Switch
When horn switch is OFF, measure resistance between
horn switch terminals.
Standard resistance: 100 kΩ or more
If resistance is abnormal, horn switch is faulty.
•
•
Replace horn switch.
4. Harness Connecting
Between Terminals
Measure resistance of harness connecting between
terminals.
Standard resistance: 10 Ω or less
If resistance is abnormal, harness is faulty.
•
•
Repair or replace
harness.
2-7-12. Backup buzzer does not sound
Reference Fig. : 2-7-2
Check point
Check/Cause
Action
1. Backup Buzzer
Disconnect backup buzzer and directly connect battery
positive terminal to backup buzzer terminal wire GB side
and negative terminal to backup buzzer terminal wire B
side.
If backup buzzer does not sound, backup buzzer is faulty.
•
•
Replace backup buzzer.
2. Backup Buzzer Switch
(1) When starter switch is ON, measure voltage between
backup buzzer switch terminal COM inlet wire R and
chassis ground.
Standard voltage: 12 V or more
(2) When starter switch is ON and F-R lever is in reverse
position, measure voltage between reverse switch
terminal NO outlet wire GB and chassis ground.
Standard voltage: 12 V or more
If above item (1) is OK and item (2) is NG, backup buzzer
switch is faulty.
•
Replace backup buzzer
switch.
3. Harness Connecting
Between Terminals
Measure resistance of harness connecting between
terminals.
Standard resistance: 10 Ω or less
If resistance is abnormal, harness is faulty.
•
•
Repair or replace
harness.
Содержание SV510-III
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Страница 21: ...SPECIFICATIONS ...
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Страница 35: ...ENGINE AND CONTROLS ...
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