Insufficient Heating
TROUBLE DIAGNOSIS PROCEDURE FOR INSUFFICIENT HEATINGSymptom:
- Insufficient heating
Inspection Flow:
CONTROL SYSTEM INPUT COMPONENTS
Engine Coolant Ambient Temperature Sensor
The engine coolant ambient temperature sensor is located on the heater inlet line between the engine and the heater core. It detects coolant temperature and converts it into a resistance value which is then input to the EATC unit. After disconnecting engine coolant ambient temperature sensor harness connector, measure resistance between sensor terminals 1 and 2, using the table.