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TROUBLE DIAGNOSIS ATC-81 C D E F G H I K L M A B ATC 1. CHECK POWER SUPPLY FOR COMPRESSOR Disconnect compressor harness connector. OK or NG OK >> Check magnet clutch coil. 1. If NG, replace magnet clutch. Refer to "Compressor Clutch (Except F9Q Engine Models)" . 2. Go to self-diagnosis function confirmation procedure ATC-49, "FUNCTION CONFIRMATION and perform self-diagnosis STEP-4. Confirm that magnet clutch operation is in good order. NG >> Disconnect A/C relay. And GO TO 2. 2. CHECK CIRCUIT CONTINUITY BETWEEN A/C RELAY AND COMPRESSOR OK or NG OK >> Check harness for short. And GO TO 3. NG >> Repair harness or connector. 3. CHECK POWER SUPPLY FOR A/C RELAY Disconnect A/C relay. OK or NG OK >> GO TO 4. NG >> Check power supply circuit and 10A (No.15 fuse, located in the fuse block). Refer to PG-10, "IGNITION POWER SUPPLY — IGNITION SW. IN . ● If OK, check for open circuit in wiring harness. Repair or replace as necessary. ● If NG, replace fuse and check wiring harness for short circuit. Repair or replace as necessary. Terminal Voltage (+) ( − ) Compressor connector Terminal No. (Wire color) E32 1 (L/R) Ground Battery voltage RJIA0295E Terminal Continuity (+) ( − ) A/C relay con- nector Terminal No. (Wire color) Compressor connector Terminal No. (Wire color) E17 3 (L/R) E32 1 (L/R) Yes RJIA0793E Terminal Voltage (+) ( − ) A/C relay con- nector Terminal No. (Wire color) E17 1 (L/Y) Ground Battery voltage E17 5 (L/Y) RJIA0794E |