Sakai SW800-II, Shop Manual

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10-073
TROUBLESHOOTING
2-7-14. Horn does not sound
Reference Fig.: 2-7-3
Check point Check/Cause Action
1. Horn Disconnect horn and directly connect battery positive
terminal to horn terminal wire Lg 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 GR 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 Lg 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 Ω 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.
2-7-15. Backup buzzer does not sound
Reference Fig.: 2-7-3
Check point Check/Cause Action
1. Backup Buzzer Disconnect backup buzzer and directly connect battery
positive terminal to backup buzzer terminal wire RY 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 WG and
chassis ground.
Standard voltage: 12 V or more
(2) When F-R lever is in reverse position and starter switch
is ON, measure voltage between backup buzzer switch
terminal NO outlet wire RY 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.