7
-4
Apr. 2007
DSC48
1.3 TROUBLESHOOTING
Symptom Cause Action
All lamps on the instrument
panel do not come on.
If no sound comes from the MICOM unit and the LED
displays nothing
• Power is not supplied to the MICOM unit and lamps
on the instrument panel.
Power to the MICOM unit
(fuse, slow-blow fuse)
If sound comes from the MICOM unit and the LED
operates correctly
• Power is not supplied to the instrument
Check if the voltage
between the lamp power
wire and vehicle's body read
between DC 11 ~ 16 V.
Only the charge lamp and
oil lamp come on.
LED displays nothing.
(no relay sound from the
MICOM unit)
• Power is not supplied to the MICOM unit.
• The ground wire of the MICOM unit is faulty.
• Power to the MICOM unit
• Ground wire of the
MICOM unit
Only the charge lamp, oil
lamp and check lamp come
on and the LED displays
"H".
• The MICOM unit is faulty. • Replace
All lamps or six lamps (except
the charge lamp, oil lamp and
coolant temperature lamp)
blink.
• The electrolyte level in the battery is too low and the
voltage drops when loaded.
• The power wire of the MICOM unit is not correctly
installed.
• The ground wire of the MICOM unit is not correctly
installed.
• Charge the battery
• Power to the MICOM unit
• Ground wire of the
MICOM unit
A lamp is malfunctioning. • The bulb is blown.
• The lamp power wire has an open circuit.
• Replace
• Load to power