{"model":"mk4","model_name":"MK4 Supra","vehicle":"Toyota Supra A80 (1993–2002, 2JZ-GE / 2JZ-GTE)","document":"Repair Manual","section":"AC","section_name":"Air Conditioning","page":65,"pages_in_section":111,"title":"Air Conditioning","section_header":"Air Conditioning System — Troubleshooting","ocr_text":"AC-65\n\nAIR CONDITIONING SYSTEM – TROUBLESHOOTING\n\n7 Check magnetic clutch relay.\n\nP Remove magnetic clutch relay from R/B No. 2.\n\nC Check continuity between each pair of terminals shown below of magnetic clutch relay.\n\nOK Terminals 1 and 2    Approx. 75 Ω\n   Terminals 3 and 5    No continuity\n\nP 1. Apply battery positive voltage between terminals 1 and 2.\n   2. Check continuity between terminals 3 and 5.\n\nOK Terminals 3 and 5    Continuity\n\nN08833\n\nOK\n\nNG Replace magnetic relay.\n\n8 Check voltage between terminal ACMG of ECM and body ground.\n\nON\nIG ON\nECM\n\nBE6663\nAC2997\nACMG\n\nP 1. Remove the ECM with connectors still connected.\n   2. Turn ignition switch on.\n\nC 1. Turn fan speed control dial (Lo, Med or Hi).\n   2. Measure voltage between terminal ACMG of the ECM connector and body ground.\n\nOK A/C Switch         Voltage\n   ON               Approx. 1.3. V\n   OFF              Battery positive voltage ~ 1.3 V\n\nNG\n\nOK Proceed to next circuit inspection shown on matrix chart (See page AC-26).\n\n9 Check for open and short in harness and connector between the ECM and battery (See page IN-30).\n\nOK\n\nNG Repair or replace harness or connector.\n\nCheck and replace the 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