TSRM/MK3 Supra/Repair Manual
Repair ManualWiring Diagrams
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AC/Air Conditioning System44 / 46
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AIR CONDITIONING SYSTEM — Functional Test and Adjustment — MK3 Supra Air Conditioning System, page 44
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AC-44 AIR CONDITIONING SYSTEM — Functional Test and Adjustment RECIRC/FRESH Control Servo Motor INSPECTION OF RECIRC/FRESH CONTROL SERVO MOTOR (Operation) (a) Connect the positive (+) lead from the battery to terminal 1 and the negative (—) lead to terminal 2. (b) Check that the arm rotates smoothly. (c) At this time, check for continuity between terminals 3 and 4 as shown in the illustration. (d) Connect the positive (+) lead from the battery to terminal 2 and the negative (—) lead to terminal 1. (e) Check that the arm rotates smoothly. (f) At this time, check for continuity between terminals 5 and 6 as shown in the illustration. If operation is not as specified, replace the servo motor. Air Vent Mode Control Servo Motor INSPECTION OF AIR VENT MODE CONTROL SERVO MOTOR (Operation) (a) Connect the positive (+) lead from the battery to terminal 1 and the negative (—) lead to terminal 4. (b) Check that the arm rotates smoothly. (c) Connect the positive (+) lead from the battery to terminal 4 and the negative (—) lead to terminal 1. (d) Check that the arm rotates smoothly. (Continuity) Check for continuity between terminal as shown below. Terminals Arm position 2 5 6 7 9 10 11 FACE O—O O O—O BI-LEVEL O—O O—O—O FOOT O—O O O—O FOOT-DEF O O—O—O DEF O O O O—O If operation or continuity is not as specified, replace the servo motor. FACE BI-LEVEL FOOT FOOT/DEF DEF