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Home >> Infiniti >> 2012 >> G37 Base, 2D Convertible >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 108 (Power Control System (Sedan)) >> Power Distribution System >> DTC/Circuit Diagnosis >> DTC B2553: Ignition Relay >> Diagnosis Procedure
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Diagnosis Procedure

WARNING: This page is about a different variant/trim than selected.
  1. CHECK DTC WITH IPDM E/R

    Check "Self diagnostic result" with CONSULT. Refer to "DTC INDEX ".

    Is the inspection result normal? 

    YES: GO TO 2.

    NO: Repair or replace malfunctioning parts.

  2. CHECK IGNITION RELAY FEEDBACK INPUT SIGNAL
    1. Turn ignition switch OFF.
    2. Disconnect BCM connector.
    3. Check voltage between BCM harness connector and ground.
      (+) (-) Condition Voltage (V) (Approx.)
      BCM
      Connector Terminal
      M123 123 Ground Ignition switch OFF 0
      ON Battery voltage

      Is the inspection result normal? 

      YES: GO TO  4.

      NO: GO TO 3.

  3. CHECK IGNITION RELAY FEEDBACK CIRCUIT
    1. Disconnect IPDM E/R connector.
    2. Check continuity between BCM harness connector and IPDM E/R harness connector.
      BCM IPDM E/R Continuity
      Connector Terminal Connector Terminal
      M123 123 E5 19 Existed
    3. Check continuity between BCM harness connector and ground.
      BCM Ground Continuity
      Connector Terminal
      M123 123 Not existed

      Is the inspection result normal? 

      YES: Replace IPDM E/R. Refer to "REMOVAL AND INSTALLATION ".

      NO: Repair or replace harness or connector.

  4. CHECK INTERMITTENT INCIDENT

    Refer to "INTERMITTENT INCIDENT ".

    INSPECTION END

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