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Troubleshooting
O
K
TLDI 115A 2007
NO
NO
NO
NO
YES
YES
YES
YES
Measure water
temperature sensor resistance.
Check water pump.
Normal?
Normal?
Replace water
temperature sensor.
Check cooling water
passage for clogging or leak.
Check thermostat.
Clean or replace
cooling water passage.
Normal?
Replace thermostat.
Normal?
Replace water pump.
Check ignition system,
fuel system and/or
lubrication system.
Cooling System
MD115A̲09̲2校̲070604.qxd 07.6.6 7:01 PM ページ 26