9-025
ELECTRICAL SYSTEM TROUBLESHOOTING
2-4. Vibrator
Check the following items before troubleshooting.
No fuse blew.
2-4-1. No vibration occurs
The vibrator L-H change switch on the control panel is not turned OFF.
Reference Fig. : 2-4
Check point
Check/Cause
Action
1. Vibrator Solenoid
- Disconnect the harness of the a or b vibrator solenoid and
measure the coil resistance.
Standard resistance: 5.10 Ω
- If measured resistance is abnormal, the vibrator solenoid is
faulty.
Replace the vibrator
solenoid.
2. Vibrator L-H Change
Switch
(1) When the starter switch is ON, measure the voltage between
vibrator L-H change switch pin 1 or pin 4 inlet Y wire and
chassis ground.
Standard voltage: 12 V
(2) When the starter switch is ON, measure the voltage between
vibrator L-H change switch pin 2 inlet YB wire or pin 5 inlet
YR wire and chassis ground.
Standard voltage: 12 V
- If above item (1) is OK and item (2) is NG, the vibrator L-H
change switch is faulty.
Replace the vibrator
L-H change 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.
2-4-2. Amplitude does not change (remains either low or high)
The vibrator L-H change switch on the control panel is not turned OFF.
Reference Fig. : 2-4
Check point
Check/Cause
Action
1. Vibrator Solenoid
- Disconnect the harness of the a or b vibrator solenoid and
measure the coil resistance.
Standard resistance: 5.10 Ω
- If measured resistance is abnormal, the vibrator solenoid is
faulty.
Replace the vibrator
solenoid.
2. Vibrator L-H Change
Switch
(1) When the starter switch is ON, measure the voltage between
vibrator L-H change switch pin 1 or pin 4 inlet Y wire and
chassis ground.
Standard voltage: 12 V
(2) When the starter switch is ON, measure the voltage between
vibrator L-H change switch pin 2 inlet YB wire or pin 5 inlet
YR wire and chassis ground when the vibrator L-H change
switch is set to Low or High.
Standard voltage: 12 V
- If above item (1) is OK and item (2) is NG, the vibrator L-H
change switch is faulty.
Replace the vibrator
L-H 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.
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Содержание SV400D-2
Страница 1: ...SV400 2 SHOP MANUAL 0404 99027 0 31649 B ...
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