Honda Civic manuals

Subaru Legacy Service Manual: Inspection

1. INSPECTION WITH PRESSURE SYMPTOM

Symptoms

Reference

Both high and low pressure sides are low

Refrigerant Pressure with Manifold Gauge Set > INSPECTION

Both high and low pressure sides are high

Refrigerant Pressure with Manifold Gauge Set > INSPECTION

High and low pressure sides are equal, high-pressure side is low

Refrigerant Pressure with Manifold Gauge Set > INSPECTION

High-pressure side is high

Refrigerant Pressure with Manifold Gauge Set > INSPECTION

Low-pressure side is low

Refrigerant Pressure with Manifold Gauge Set > INSPECTION

Low-pressure side is high

Refrigerant Pressure with Manifold Gauge Set > INSPECTION

2. BOTH HIGH AND LOW PRESSURE SIDES ARE LOW

STEPCHECKYESNO

1.CHECK REFRIGERANT LEAKS.

Check the refrigerant for leaks. Refrigerant Leak Check > INSPECTION

NOTE:

When high-pressure side is less than 0.69Mpa: Go to step 2.

Are there refrigerant leaks-

Repair the refrigerant leaking points.

Refrigerant Pressure with Manifold Gauge Set > INSPECTION

2.FILL PROPER AMOUNT OF REFRIGERANT.

Drain all refrigerant, and refill proper amount of refrigerant.

Recovery: Refrigerant Recovery Procedure > PROCEDURE

Fill: Refrigerant Charging Procedure > PROCEDURE

Is refrigerant pressure within the standard value-

Refrigerant pressure is normal.

Perform corresponding “INSPECTION WITH PRESSURE SYMPTOM”.

3. BOTH HIGH AND LOW PRESSURE SIDES ARE HIGH

STEPCHECKYESNO

1.FILL PROPER AMOUNT OF REFRIGERANT.

Drain all refrigerant, and refill proper amount of refrigerant.

Recovery: Refrigerant Recovery Procedure > PROCEDURE

Fill: Refrigerant Charging Procedure > PROCEDURE

Is refrigerant pressure within the standard value-

Refrigerant pressure is normal.

Perform corresponding “INSPECTION WITH PRESSURE SYMPTOM”.

4. HIGH AND LOW PRESSURE SIDES ARE EQUAL, OR HIGH-PRESSURE SIDE IS LOW

STEPCHECKYESNO

1.CHECK REFRIGERANT LEAKS.

Check the refrigerant for leaks. Refrigerant Leak Check > INSPECTION

NOTE:

When high-pressure side is less than 0.69Mpa: Go to step 2.

Are there refrigerant leaks-

Repair the refrigerant leaking points.

Refrigerant Pressure with Manifold Gauge Set > INSPECTION

2.FILL PROPER AMOUNT OF REFRIGERANT.

Drain all refrigerant, and refill proper amount of refrigerant.

Recovery: Refrigerant Recovery Procedure > PROCEDURE

Fill: Refrigerant Charging Procedure > PROCEDURE

Is refrigerant pressure within the standard value-

Refrigerant pressure is normal.

Inspect the compressor. Diagnostics with Phenomenon > DIAGNOSTIC PROCEDURE WITH PHENOMENON

5. HIGH-PRESSURE SIDE IS HIGH

STEPCHECKYESNO

1.CHECK CONDENSER.

Check the condenser. Condenser > INSPECTION

Is condenser OK-

Refrigerant Pressure with Manifold Gauge Set > INSPECTION

Clean or replace the condenser.

2.CHECK RADIATOR FAN.

Check the radiator fan system.

H4 model: Radiator Fan System

H6 model: Radiator Fan System

Is radiator fan system normal-

Refrigerant Pressure with Manifold Gauge Set > INSPECTION

Repair the radiator fan system or replace the faulty parts.

3.FILL PROPER AMOUNT OF REFRIGERANT.

Drain all refrigerant, and refill proper amount of refrigerant.

Recovery: Refrigerant Recovery Procedure > PROCEDURE

Fill: Refrigerant Charging Procedure > PROCEDURE

Is refrigerant pressure within the standard value-

Refrigerant pressure is normal.

Check the high-pressure hose and condenser for kinks or clogging, and replace if defective.

6. LOW-PRESSURE SIDE IS LOW

STEPCHECKYESNO

1.CHECK REFRIGERANT LEAKS.

Check the refrigerant for leaks. Refrigerant Leak Check > INSPECTION

NOTE:

When high-pressure side is less than 0.69Mpa: Go to step 2.

Are there refrigerant leaks-

Repair the refrigerant leaking points.

Refrigerant Pressure with Manifold Gauge Set > INSPECTION

2.FILL PROPER AMOUNT OF REFRIGERANT.

Drain all refrigerant, and refill proper amount of refrigerant.

Recovery: Refrigerant Recovery Procedure > PROCEDURE

Fill: Refrigerant Charging Procedure > PROCEDURE

Is refrigerant pressure within the standard value-

Refrigerant pressure is normal.

Refrigerant Pressure with Manifold Gauge Set > INSPECTION

3.REPLACE EXPANSION VALVE.

Replace the expansion valve. Expansion Valve > REMOVAL

Is refrigerant pressure within the standard value-

Refrigerant pressure is normal.

Inspect the compressor. Diagnostics with Phenomenon > DIAGNOSTIC PROCEDURE WITH PHENOMENON

7. LOW-PRESSURE SIDE IS HIGH

STEPCHECKYESNO

1.FILL PROPER AMOUNT OF REFRIGERANT.

Drain all refrigerant, and refill proper amount of refrigerant.

Recovery: Refrigerant Recovery Procedure > PROCEDURE

Fill: Refrigerant Charging Procedure > PROCEDURE

Is refrigerant pressure within the standard value-

Refrigerant pressure is normal.

Refrigerant Pressure with Manifold Gauge Set > INSPECTION

2.REPLACE EXPANSION VALVE.

Replace the expansion valve. Expansion Valve > REMOVAL

Is refrigerant pressure within the standard value-

Refrigerant pressure is normal.

Replace the evaporator. Evaporator > REMOVAL

Procedure
1. CHECK REFRIGERANT GAS PRESSURE1. Prepare the vehicle.NOTE:Check that the ambient temperature is 25 — 40°C (77 — 104°F) and that the humidity is 30% — 80%.• Place the vehic ...

Relay and fuse
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