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Home >> Infiniti >> 2013 >> QX56 AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 308 (Security Control System (Except CROSSCABRIOLET)) >> DTC/Circuit Diagnosis >> DTC P1612: Chain Of ECM-IMMU >> DTC Logic >> DTC Detection Logic
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DTC Detection Logic

WARNING: This page is about a different car, the 2013 Nissan Murano. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
  • If DTC P1612 is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to "BCM: DTC LOGIC ".
  • If DTC P1612 is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer to "BCM: DTC LOGIC ".
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P1612 CHAIN OF ECM-IMMU Inactive communication between ECM and BCM
  • Harness or connectors (The CAN communication line is open or shorted)
  • BCM
  • ECM