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Home >> Nissan-Datsun >> 2019 >> Versa Note S >> Repair and Diagnosis (Single Page) >> Body & Frame >> Door Locks >> Security Control System (With Intelligent Key System) (DTC/Circuit Diagnosis) >> DTC/Circuit Diagnosis >> DTC P1612: Chain Of ECM-IMMU >> DTC Description >> DTC Detection Logic
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DTC Detection Logic

NOTE:
  • If DTC P1612 is displayed with DTC U1000 (for BCM), first perform the trouble diagnosis for DTC U1000. Refer to DTC Logic .
  • If DTC P1612 is displayed with DTC U1010 (for BCM), first perform the trouble diagnosis for DTC U1010. Refer to 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
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