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HEATER, AIR CONDITIONER AND VENTILATION - Troubleshooting 55-7 Inspection procedure 5 Cold air not coming out from the air outlet Probable cause If cold air does not come out from the air outlet, the amount of refrigerant may be inappropriate or the compressor circuit system may be defective. D Refrigerant line fault D Amount of refrigerant fault D Compressor fault D Compressor relay fault D Dual pressure switch fault D Engine-ECUfault D A/C-ECU fault OK NG Repair NG Check the harness between the A/C compressor relay and the ignition switch (IG2), and repair if necessary. OK Check the trouble symptoms. Check the following connectors: <L.H.D.> C-12X, C-130, C-102, C-209, C-210 <R.H.D.> C-12X, C-128, D-102, C-209, C-210 NG Repair Check the following connectors: <L.H.D.> C-12X, A-13, A-47. <R.H.D.> C-12X, A-136, A-47. OK OK Check the trouble symptoms. NG OK NG Replace OK OK OK NG Check the harness between the battery and the A/C compressor relay., and repair if necessary. OK Check the trouble symptoms. Check the following connectors: <L.H.D.> B-12X, A-43 <R.H.D.>B-12X, C-136. (1) NG Repair NG (2) NG OK Check the dual pressure switch. OK NG Repair Check the harness between the A/Compressor relay and the A/Compressor. NG Repair Check the following connectors: B-12X, C-126. OK Check the trouble symptoms. NG OK NG Repair Check the harness between the A/Compressor relay and the Engine-ECU. To the next page Check refrigerant for leakage. NG Replace NG Replace NG NG Replace Check the amount of refrigerant. Check the compressor relay. Check the compressor magnetic clutch. Check the refrigerant temperature switch. Measure at the compressor relay B-12X. Disconnect the connector and measure at the harness side. D Ignition switch: ON (1) Voltage between terminal 1 and body earth. OK : Battery voltage (2) Continuity between terminal 2 and body earth. OK : Battery voltage Refer to Inspection procedure 6 magnet clutch not working normally. |