Cooling System Concerns-Runs Cold: Notes

COOLING SYSTEM CONCERNS-RUNS COLD (VIN Y) DESCRIPTION AND POSSIBLE CAUSE

Troubleshooting item	Cooling system concerns-runs cold
Description	Engine does not reach normal operating temperature.
Possible cause	ECT sensor No. 1 malfunction (value higher than actual engine coolant temperature detected) Cooling fan system malfunction Thermostat malfunction (stuck at fully open) Active air shutter malfunction (With active air shutter)
System wiring diagram	Not applicable
Connector diagram	Not applicable