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Home >> Infiniti >> 2010 >> G37 Base, 2D Coupe >> Repair and Diagnosis >> External Pages >> Different car >> Section 19 (Security Control System (With Intelligent Key System)) >> Component Diagnosis >> DTC B2193: Chain Of ECM-IMMU >> Diagnosis Procedure
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Diagnosis Procedure

WARNING: This page is about a different car, the 2010 Nissan Armada. However, it is still accessible from the selected car via links, so may be relevant.
  1. REPLACE BCM
    1. Replace BCM. Refer to "REMOVAL AND INSTALLATION ".
    2. Perform initialization with CONSULT-III.

      For initialization, refer to CONSULT-III Operation Manual.

      Does the engine start? 

      YES: BCM was malfunctioning.

      NO: ECM is malfunctioning.

      • Replace ECM.
      • Perform ECM re-communicating function.