Subaru Legacy BN/BS (2015-2019) Service Manual: Inspection

Subaru Legacy BN/BS (2015-2019) Service Manual / Fuel injection (fuel systems)(h6do) / Engine coolant temperature sensor / Inspection

1. Check that the engine coolant temperature sensor has no deformation, cracks or other damages.

2. Immerse the engine coolant temperature sensor and a thermometer in water.

CAUTION:

Take care not to allow water to get into the engine coolant temperature sensor connector. Completely remove any water inside.

(A)

Thermometer

(B)

Engine coolant temperature sensor

(C)

Hexagonal part height: To approx.1/3

3. Raise water temperature gradually, measure the resistance between the engine coolant temperature sensor terminals when the temperature is 20°C (68°F) and 80°C (176°F).

NOTE:

Agitate the water for even temperature distribution.

Water temperature	Terminal No.	Standard
20°C (68°F)	1 and 2	Approx. 2.45±0.2 k-
80°C (176°F)	1 and 2	Approx. 0.318±0.013 k-

Removal

1. Remove the collector cover.(1) Carefully pull up the rear of collector cover at two positions (A).(2) Carefully pull up the front of collector cover at two positions (B) while moving it forward.2. ...

Installation

1. Install the engine coolant temperature sensor, and connect the connector to the engine coolant temperature sensor.NOTE:Use a new gasket.Tightening torque:22 N·m (2.2 kgf-m, 16.2 ft-lb)2. Con ...

Other materials:

Inspection
1. Check the illumination operation when battery voltage is applied between the connector terminals.Terminal No.Inspection conditionsSpecification2 (+) — 6 (−)Apply battery voltage.Light ON2. If it does not operate normally, replace the heater control assembly. ...