Hyundai Tucson: External Control Valve Compressor Inspection (GDS)

Compressor type: Fixed type compressor, External control valve, Internal control valve.

In cases of fixed type and internal control valve, it is possible to inspect compressor's operation with clutch noise.

When it comes to External control valve, however, it cannot be checked in this way bacause it doesn't have a clutch.

So, ECV should be inspected with GDS as below.

1. Connect GDS to the vehicle and select 'Aircon Compressor Test(ECV type)'

ECV1

2. Make the vehicle ready as the GDS instruction on the monitor. (Turn off A/C 'switch' only)

3. Check if other DTC codes are found before inspect ECV compressor. If so, solve that problems first. If not, press 'OK' button to continue.

WARNING

Do not continue inspection if these DTC codes are found: B1241, B1242. B1672, B1685, B1686. B1687

4. Start inspection

WARNING

Check if condenser fan is operating when condition is changed to 'ECV running'

WARNING

Relief valve will operate if condenser fandoesn't work due to overpressure in thecompressor. It helps the airconditiong system torelieve by releasing refrigerant and oil (losed ifrelieved).

• Refill refrigerant and oil after operation of relief valve
• Noise occurred when relief valve is in operation

5. Check the result of inspection.

ECV7

ECV8

6. If the result shows "Check", click "Check" and follow the instruction.

7. Inspect ECV again from the first step.

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