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PTC HEATER HAC-215 < DTC/CIRCUIT DIAGNOSIS > [MANUAL AIR CONDITIONING] C D E F G H J K L M A B HAC N O P YES >> GO TO 4. NO >> Repair harness or connector. 4. CHECK PTC HEATER POWER SUPPLY CIRCUIT FOR OPEN Check continuity between PTC relay harness connector and PTC heater harness connector. Is the inspection result normal? YES >> GO TO 5. NO >> Repair harness or connector. 5. CHECK PTC HEATER GROUND CIRCUIT FOR OPEN Check continuity between PTC heater harness connector and ground. Is the inspection result normal? YES >> GO TO 6. NO >> Repair harness or connector. 6. CHECK PTC RELAY Check PTC relay. Refer to HAC-215, "Component Inspection (PTC Relay)" . Is the inspection result normal? YES >> GO TO 7. NO >> Replace malfunctioning PTC relay. 7. CHECK PTC HEATER Check PTC heater. Refer to HAC-216, "Component Inspection (PTC Heater)" . Is the inspection result normal? YES >> Replace BCM. Refer to BCS-121, "Removal and Installation" . NO >> Replace PTC heater. Refer to HAC-226, "Removal and Installation" . Component Inspection (PTC Relay) INFOID:0000000010939865 1. CHECK PTC RELAY 1. Remove PTC relay. 2. Check continuity between PTC relay terminals 3 and 5 when the Is the inspection result normal? YES >> INSPECTION END NO >> Replace malfunctioning PTC relay. PTC relay PTC heater Continuity Relay Connector Terminal Connector Terminal 1 E139 5 E138 1 Existed 2 E140 3 3 E141 5 PTC heater — Continuity Connector Terminal E138 2 Ground Existed 4 Terminal Voltage Continuity 3 5 ON Existed OFF Not existed JSIIA1551ZZ |