Sakai TW504 - Engine Does Not Stop Running; No Charging; Glow Plugs Is Not Heated

10-018
TROUBLESHOOTING
2-2-3. Engine does not stop running
Reference Fig. : 2-2-1
Check point Check/Cause Action
1. Engine Stop Solenoid (1) When starter switch is OFF, measure voltage between
engine stop solenoid terminal inlet wire RB and chassis
ground.
There is no electricity in normal condition
(2) When starter switch is OFF, measure voltage between
engine stop solenoid terminal inlet wire BY and chassis
ground.
There is no electricity in normal condition
If above items (1) and (2) are OK and engine does not
stop after started, engine stop solenoid is faulty.
•
Replace engine stop
solenoid.
2. 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.
2-2-4. No charging
Reference Fig.: 2-2-1
Check point Check/Cause Action
1. Alternator After starting engine, measure voltage between alternator
terminal B wire WY and chassis ground.
Standard voltage : At least intermediate engine speed,
14 V or more
If voltage is lower than standard, alternator is faulty.
If voltage is normal and battery is not charged, battery is
faulty.
•
•
•
Replace alternator or
battery.
2-2-5. Glow plugs is not heated (Engine starting performance is bad in cold weather)
Reference Fig. : 2-2-1
Check point Check/Cause Action
1. Glow Plugs
When starter switch is ON, measure voltage between
glow plugs terminal inlet wire WG and chassis ground.
Standard voltage : 12 V or more
If voltage is OK, glow plugs is faulty.
•
•
Replace glow plugs.
2. Starter Switch Check continuity between O-O according to starter switch
connection table.
Switch is OK if there is continuity between connection
O-O.
If there is no continuity, starter switch is faulty.
•
•
Replace starter 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.