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TROUBLESHOOTING HEATER, AIR CONDITIONER AND VENTILATION 55A-16 STEP 19. Check the wiring harness between A-38 AC509977AG Harness side A-38 (BR) Connector: A-38 AC509613 CD Harness side C-105 (B) Connector: C-105 <LHD> 35 40 41 42 1817 38 39 15 16 14 3736 12 13 11 32 8 3433 9 10 30 31 7 6 29 5 4 28 3 27 2 26 1 25 19 2120 22 23 46 47 4544 24 76 52 86 62 63 64 65 66 67 68 69 70 71 72 92 95 96 93 94 89 90 91 8887 53 54 55 56 57 58 59 60 61 83 8584 8281 78 79 80 77 49 50 51 74 75 73 AC509930 CA C-105 (B) Connector: C-105 <RHD> Harness side 35 40 41 42 1817 38 39 15 16 14 3736 12 13 11 32 8 3433 9 10 30 31 7 6 29 5 4 28 3 27 2 26 1 25 19 2120 22 23 46 47 4544 24 76 52 86 62 63 64 65 66 67 68 69 70 71 72 92 95 96 93 94 89 90 91 8887 53 54 55 56 57 58 59 60 61 83 8584 8281 78 79 80 77 49 50 51 74 75 73 NOTE: AC509975AH Connector: A-28 A-28 (B) Prior to the wiring harness inspection, check interme- • Check the dual pressure switch signal line. Q: Is the check result normal? YES : Go to Step 20. NO : Repair the wiring harness. STEP 20. Check the A/C compressor clutch . Q: Can the sound of the A/C compressor clutch (click) be heard? Go to Step 21. NO : Replace the A/C compressor clutch. STEP 21. Refrigerant level check Q: Is the check result normal? YES : Go to Step 22. NO : Charge or remove the refrigerant level. STEP 22. Replace the A/C switch module, and Q: Is the check result normal? YES : This diagnosis is complete. NO : Go to Step 23. STEP 23. Replace the A/C evaporator air outlet Q: Is the check result normal? YES : This diagnosis is complete. NO : Replace the engine-ECU. |