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

Subaru Legacy BN/BS (2015-2019) Service Manual / Hvac system (heater ventilator and a c) / Rear vent door actuator / Inspection

1. ACTUATOR LINK

1. Visually check the operating range of the link, and remove the foreign matter if any.

2. Operate the temperature control switch, and check that the link operates normally.

3. If it does not operate normally as the result of inspection, perform a unit inspection of motor assembly - rear heater.

2. CHECK ACTUATOR OPERATION

1. Check the actuator operation when battery voltage is applied between the connector terminals.

CAUTION:

Disconnect the battery immediately after the actuator stops operation. Otherwise, the motor may be damaged.

Terminal No.	Inspection conditions	Operating position
6 (+) — 7 (−)	Connect battery to the terminals	COOL
7 (+) — 6 (−)	Connect battery to the terminals	HOT

2. Measure the resistance between connector terminals.

Preparation tool:

Circuit tester

Terminal No.	Inspection conditions	Operating position
1 — 3	Always	4.2 — 7.8 -

3. Connect the connector, turn the ignition switch to ON, and check the voltage between actuator terminals.

Terminal No.	Inspection conditions	Operating position
5 (+) — 3 (−)	HOT	Approx. 1 V
5 (+) — 3 (−)	COOL	Approx. 4 V

4. Replace the motor assembly - rear heater if faulty is found in the inspection.

Removal

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