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LAN-62 [CAN] CAN SYSTEM (TYPE 1) Revision; 2004 April 2003 Murano 8. CHECK HARNESS FOR SHORT CIRCUIT 1. Disconnect ABS actuator and electric unit (control unit) connector and IPDM E/R connector. 2. Check continuity between IPDM E/R harness connector E9 ter- OK or NG OK >> GO TO 9. NG >> Check the following harnesses. If any harness is dam- aged, repair the harness. ● Harness between IPDM E/R and ABS actuator and ● Harness between IPDM E/R and harness connector 9. CHECK HARNESS FOR SHORT CIRCUIT Check continuity between IPDM E/R harness connector E9 termi- OK or NG OK >> GO TO 10. NG >> Check the following harnesses. If any harness is dam- aged, repair the harness. ● Harness between IPDM E/R and ABS actuator and ● Harness between IPDM E/R and harness connector E105. 10. ECM/IPDM E/R INTERNAL CIRCUIT INSPECTION Check components inspection. Refer to LAN-62, "ECM/IPDM E/R INTERNAL CIRCUIT INSPECTION" . OK or NG OK >> Connect all the connectors and diagnose again. Refer to . NG >> Replace ECM and/or IPDM E/R. IPDM E/R Ignition Relay Circuit Check AKS00698 Check the following. If no malfunction is found, replace the IPDM E/R. ● IPDM E/R power supply circuit. Refer to PG-45, "IPDM E/R Power/Ground Circuit Inspection" . ● Ignition power supply circuit. Refer to PG-10, "IGNITION POWER SUPPLY - IGNITION SW. IN “ON” Component Inspection AKS00699 ECM/IPDM E/R INTERNAL CIRCUIT INSPECTION ● Remove ECM and IPDM E/R from vehicle. ● Check resistance between ECM terminals 94 and 86. ● Check resistance between IPDM E/R terminals 48 and 49. 48 (L) - 49 (Y) : Continuity should not exist. LKIA0030E 48 (L) - Ground : Continuity should not exist. 49 (Y) - Ground : Continuity should not exist. LKIA0036E Unit Terminal Resistance value ( Ω ) (Approx.) ECM 94 - 86 108 - 132 IPDM E/R 48 - 49 LKIA0037E |