Service manual
4. Troubleshooting
4-6
4.3 Emergency Switch Functions
4.3.1 Engine oil pressure drop is shown in monitor and it stops
4.3.2 Engine coolant temperature rise is displayed in monitor, and engine will stop.
Shortag
Replenish or replace.
Proper
Faulty
Replace it.
Check oil filter.
Normal
Faulty
Shortage
Repair.
Replenish or replace.
Check water quantity
and quality in radiator
Normal
Lower ambient
temperature down to
less than 104 ゚F
(40℃)
Normal
Check engine oil
quantity.
Higher than
104 ゚F (40℃)
Lower than
104 ゚F
(40℃)
Replace it.
Faulty
Normal
Replace it.
Faulty
Check cable connection
to engine oil pressure
switch.
Repair.
Check cable connection
to water temp. switch
Faulty
Shortage of oil.
Filter clogging.
Defective oil pressure
switch.
Looseness of cable
connection or
separated.
Check engine oil
pressure.
Shortage of coolant &
bad quality
High ambient
temperature
Malfunction of switch
Looseness of cable
connection or
separated.
Check ambient
temperature
Check water
temperature switch