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IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM) PG-23 C D E F G H I J L M A B PG Revision: 2006 July 2007 Murano Concept of Auto Active Test ● IPDM E/R actuates auto active test mode when it receives door switch signal from BCM via CAN commu- ● If any of systems controlled by IPDM E/R cannot be operated, possible cause can be easily diagnosed 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 ● Lamp/wiper motor ground circuit malfunction ● Harness/connector malfunction between IPDM E/R and system in ● IPDM E/R (integrated relay) malfunction Rear window defogger Perform auto active YES ● BCM signal input circuit malfunction NO ● Rear window defogger relay malfunction ● Harness/connector malfunction between IPDM E/R and rear window ● Open circuit of rear window defogger ● IPDM E/R malfunction A/C compressor does Perform auto active YES ● BCM signal input circuit malfunction ● CAN communication signal between BCM and ECM. ● CAN communication signal between ECM and IPDM E/R NO ● Magnetic clutch malfunction ● Harness/connector malfunction between IPDM E/R and magnetic ● IPDM E/R (integrated relay) malfunction Cooling fan does not Perform auto active YES ● ECM signal input circuit ● CAN communication signal between ECM and IPDM E/R NO ● Cooling fan motor malfunction ● Harness/connector malfunction between IPDM E/R and cooling fan ● IPDM E/R (integrated relay) malfunction Oil pressure warning Perform auto active YES ● Harness/connector malfunction between IPDM E/R and oil pressure ● Oil pressure switch malfunction ● IPDM E/R malfunction NO ● CAN communication signal between BCM and unified meter and A/C ● Combination meter |