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7 CHECK REFRIGERANT PRESSURE SENSOR INPUT SIGNAL Do approx. 0 volts exist between ECM harness terminal No. 51 and ground? SHA432F Yes or No Yes © GO TO 8. No © 1. Repair harness or connector. form self-diagnosis STEP 4. 8 CHECK REFRIGERANT PRESSURE SENSOR Refer to HA-80. OK or NG OK © GO TO 9. NG © Replace refrigerant pressure sensor. 9 CHECK CIRCUIT CONTINUITY BETWEEN A/C RELAY AND ECM Check circuit continuity between A/C relay harness terminal No. 2 and ECM harness terminal No. 27. RHA403H Continuity should exist. If OK, check harness for short. OK or NG OK © Check ECM. Refer to EC-132, “ECM Terminals and Reference Value”. NG © Repair harness or connector. GI MA EM LC EC FE AT AX SU BR ST RS BT SC EL IDX TROUBLE DIAGNOSES Magnet Clutch (Cont’d) HA-79 |