Sakai SV400D-2, Shop Manual

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9-035
ELECTRICAL SYSTEM TROUBLESHOOTING
2-5-9. Parking brake indicator lamp does not light
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. Parking Brake
Switch
- When turning starter switch ON, measure voltage between
parking brake switch pin 4 inlet GR wire and chassis ground.
Standard voltage: 12 V or more
- If the above item is OK and the parking brake lamp does not
light even though the parking brake switch is turned ON/OFF,
the parking brake switch is faulty.
Replace the parking
brake 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.
2-5-10. Horn does not sound
Reference Fig. : 2-5
Check point Check/Cause Action
1. Horn - Disconnect horn and connect the horn terminal to the battery
directly.
- If the horn does not sound, it is faulty.
Replace the horn.
2. Horn Relay (1) When pressing horn switch with starter switch ON, measure
voltage between horn relay pin 1 RY wire and chassis
ground.
Standard voltage: 12 V or more
(2) When pressing horn switch with starter switch ON, measure
voltage between horn relay pin 5 LgW wire and chassis
ground.
Standard voltage: 12 V or more
- If above item (1) is OK and item (2) is NG, the horn relay is
faulty.
Replace the horn
relay.
3. Horn Switch (push
button)
- When horn switch is pushed ON and OFF, check if continuity
between switch terminals changes between presence and
absence.
- If continuity between switch terminals does not change
between presence and absence, the horn switch is defective.
Replace the horn
switch.
4. 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.