Sakai SV400D-2, Shop Manual

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9-037
ELECTRICAL SYSTEM TROUBLESHOOTING
2-5-11. Backup buzzer does not beep
Reference Fig. : 2-5
Check point Check/Cause Action
1. Buzzer - Disconnect buzzer and connect the buzzer terminal to the
battery directly.
- If the buzzer does not beep, it is faulty.
Replace the buzzer.
2. Backup Buzzer
Switch
(1) When the forward/reverse lever is in the reverse position,
measure the voltage between the backup buzzer switch
COM pin inlet R wire and chassis ground.
Standard voltage: 12 V or more
(2) When the forward/reverse lever is in the reverse position,
measure the voltage between the backup buzzer switch NO
pin inlet GB wire and chassis ground.
Standard voltage: 12 V or more
- If above item (1) is OK and item (2) is NG, the backup buzzer
switch is faulty.
Replace the backup
buzzer switch.
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.
2-5-12. Engine warning lamp remains ON
Confirm the engine is cold. (If the coolant is more than 111
°C
the thermal unit is ON. So engine
warning lamp is ON.)
Reference Fig. : 2-5
Check point Check/Cause Action
1. Thermo Unit (1) Check the continuity between thermo unit terminal 3 and
chassis. If continuity indicates the thermo unit is faulty.
Replace the thermo
unit.
2. Harness Connecting
Between Terminals
- Check harness between warning lamp terminal and ground. If
continuity indicates the harness is faulty.
Replace the harness.
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