Cooling System Concerns-Overheating [PYUL]: Outline
WARNING: This page is about a different variant/trim than selected.
COOLING SYSTEM CONCERNS-OVERHEATING (PYUL) DESCRIPTION AND POSSIBLE CAUSE
| Troubleshooting item |
Cooling system concerns-overheating |
| Description |
The engine coolant temperature is abnormally high. |
| Possible cause |
- Engine heat generation amount is excessive
- Engine speed is high and remains high for continuous long periods
- PCM detects DTCs
- Improper operation of A/C system
- Insufficient air blow volume
- Cooling fan inoperative
- Active air shutter is fully-closed and does not operate
- Fan rotation speed decreases (such as generator malfunction) due to battery voltage decrease
- ECT sensor malfunction (value lower than actual engine coolant temperature detected)
- Active air shutter malfunction
- Cooling system cap malfunction
- Cooling fan motor component malfunction
- Cooling fan motor component connector malfunction
- Pseudo overheat
- ECT sensor signal error
- Center display malfunction
- Body control module (BCM) malfunction
- Multi-information display malfunction
- Fuse malfunction
- Engine coolant system malfunction
- Improper engine coolant level
- Water pump malfunction
- Engine coolant performance deterioration
- Coolant leakage (engine internal, external)
- Improper water/anti-freeze mixture
- Radiator malfunction (clogging)
- Inappropriate engine coolant concentration (engine coolant in radiator freezes and engine coolant does not flow)
- Foreign matter penetration in engine coolant
- Leakage around heater unit in passenger compartment
- Drive belt damage
- Thermostat malfunction (not fully open)
|
| System wiring diagram |
Not applicable |