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EXL-28 < SYSTEM DESCRIPTION > [XENON TYPE] DIAGNOSIS SYSTEM (IPDM E/R) Concept of auto active test • IPDM E/R starts the auto active test with the door switch signals transmitted by BCM via CAN communica- tion. Therefore, the CAN communication line between IPDM E/R and BCM is considered normal if the auto • The auto active test facilitates troubleshooting if any systems controlled by IPDM E/R cannot be operated. Diagnosis chart in auto active test 5 Headlamp LO for 10 seconds → HI ON ⇔ OFF 5 times 6 A/C compressor (magnet clutch) ON ⇔ OFF 5 times Operation Inspection location Operation JMMIA0492GB Symptom Inspection contents Possible cause Rear window defogger does not operate Perform auto active test. YES BCM signal input circuit NO • Rear window defogger ground circuit • Harness or connector be- tween IPDM E/R and rear • IPDM E/R Any of the following components do not operate • Parking lamp Perform auto active test. YES BCM signal input circuit NO • Lamp or motor cuit • Harness or connector be- tween IPDM E/R and appli- • IPDM E/R A/C compressor does not operate Perform auto active test. YES • A/C auto amp. signal input circuit • CAN communication signal between A/C auto amp. and • CAN communication signal between ECM and IPDM E/ NO • Magnet clutch tween IPDM E/R and mag- • IPDM E/R |