Repair Procedures: Inspection

1. Check the plated parts of the limiter assembly (A) for color changes, peeling or other damage. If there is damage, replace the limiter assembly.
2. Check the pulley (B) bearing play and drag by rotating the pulley by hand. Replace the limiter assembly with a new one if it is noisy or has excessive play/drag.
   Fig 1: Pulley And Limiter Assembly

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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 because it doesn't have a clutch.

So, ECV should be inspected with GDS as in illustration below.

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

   [ECV1] 

   Fig 2: Display - ECV1 Inspection/Test Screen

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

   [ECV2] 

   Fig 3: Display - ECV2 Inspection/Test Screen

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   [ECV3] 

   Fig 4: Display - ECV3 Inspection/Test Screen

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

   Information 

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

   [ECV4] 

   Fig 5: Display - ECV4 Inspection/Test Screen

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4. Start inspection

   [ECV5] 

   Fig 6: Display - ECV5 Inspection/Test Screen

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   [ECV6] 

   Fig 7: Display - ECV6 Inspection/Test Screen

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   CAUTION: Check if condenser fan is operating when condition is changed to 'ECV running'
   CAUTION: Relief valve will be operated if a condenser fan doesn't work because of overpressure in the compressor. It helps the air conditioning system to relieve by releasing refrigerant and oil. (Closed if relieved)
   * Refill refrigerant and oil after operation of Relief valve
   * Noise occurred when Relief valve is in operation
5. Check the result of inspection and click 'Check Detail' if it's 'Check'. Follow the instruction and inspect ECV again from the fir

   [ECV7] 

   Fig 8: Display - ECV7 Inspection/Test Screen

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   [ECV8] 

   Fig 9: Display - ECV8 Inspection/Test Screen

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