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IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM) PG-21 < SERVICE INFORMATION > C D E F G H I J L M A B PG N O P NOTE: Concept of Auto Active Test • IPDM E/R actuates auto active test mode when it receives door switch signal from BCM via CAN communi- cation line. Therefore, when auto active test mode is activated successfully, CAN communication between • If any of systems controlled by IPDM E/R cannot be operated, possible cause can be easily diagnosed using auto active test. Diagnosis chart in auto active test mode Symptom Inspection contents Possible cause Any of front wipers, tail Perform auto active YES • BCM signal input system malfunction NO • Lamp/wiper motor malfunction Rear window defogger Perform auto active YES • BCM signal input circuit malfunction NO • Rear window defogger relay malfunction fogger relay. • Open circuit of rear window defogger A/C compressor does Perform auto active YES • BCM signal input circuit malfunction NO • Magnetic clutch malfunction Cooling fan does not op- Perform auto active YES • ECM signal input circuit NO • Cooling fan motor malfunction Oil pressure warning Perform auto active YES • Harness/connector malfunction between IPDM E/R and oil pressure switch NO • CAN communication signal between BCM and unified meter and A/C amp. |