No. 17 Cooling System Concerns-Overheating: Notes
SYMPTOM TROUBLESHOOTING - NO. 17 COOLING SYSTEM CONCERNS-OVERHEATING [L3]
| 17 |
COOLING SYSTEM CONCERNS-OVERHEATING |
| DESCRIPTION |
Engine runs at higher than normal temperature/overheats. |
| POSSIBLE CAUSE |
- Radiator hoses damage
- Coolant leakage
- Leakage around heater unit
- Leakage at coolant hoses and/or radiator
- Improper coolant level
- Fans reverse rotation
- Fuse malfunction
- Coolant overflow system malfunction
- Poor radiator condition
- Improper or damaged radiator cap
- Improper water/anti-freeze mixture
- PCM, climate control unit, instrument cluster or multi information display DTC is stored
- Improper operation of A/C system
- Climate control unit malfunction (A/C switch malfunction or climate control unit does not determine A/C request or transmit the A/C request signal)
- Instrument cluster malfunction (does not receive A/C request signal from climate control unit or transmit it to PCM)
- Communication error between PCM and instrument cluster
- Communication error between instrument cluster and climate control unit (Full-auto air conditioner)
- Short to ground circuit between BCM terminal 3S and climate control unit terminal E (Manual air conditioner)
- Improper operation of cooling fan control system
- Improper tension of drive belt
- Drive belt damage
- Thermostat malfunction
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