Subaru Legacy 2002 Service Manual page 3149

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HVAC System (Auto A/C) (Diagnostics)

4) Firmly hold a thin thread (b) in front of the in-

vehicle sensor suction port (a) for the auto A/C

control unit and check that the thread moves

towards the port indicating that air is being sucked

into the port.

¼ Ensure the thread does not get sucked into the

¼ Hold the thread approximately 5 mm (0.20 in)

away from the port when the suction force is not

very strong.

5) If the thread does not move at all, remove the

auto A/C control unit <Ref. to AC-34, AUTO A/C,

REMOVAL, Control Unit.> and check for improper

connection of the aspirator hose (a) and auto A/C

control unit and secure as necessary.

GENERAL DESCRIPTION

3. REFRIGERANT LINE

Check contact for refrigerant line (A).

4. CONTROL LINKAGE

1) Check state of mode door control rod and link-

2) Check state of air mix door control rod and link-

3) Check state of intake door control rod and link-

S001001A1003

S001001A1004

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