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Home >> Infiniti >> 2012 >> G37 Base, 2D Convertible >> Repair and Diagnosis (Single Page) >> External Pages >> Different car >> Section 190 (Power Control System) >> Power Distribution System >> DTC/Circuit Diagnosis >> DTC B2616: Ignition Relay Circuit >> Diagnosis Procedure
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Diagnosis Procedure

WARNING: This page is about a different car, the 2011 Nissan 370Z. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK IGNITION RELAY POWER SUPPLY
    1. Turn ignition switch OFF.
    2. Disconnect ignition relay.
    3. Check voltage between ignition relay harness connector and ground.
      VOLTAGE SPECIFICATION

      (+) (-) Condition Voltage (V) (Approx.)
      Ignition relay
      Terminal
      1 Ground Ignition switch OFF or ACC 0
      ON Battery voltage

      Is the inspection result normal? 

      YES: Go to  3.

      NO: Go to 2.

  2. CHECK IGNITION RELAY POWER SUPPLY CIRCUIT
    1. Turn ignition switch OFF.
    2. Disconnect BCM connector.
    3. Check continuity between ignition relay harness connector and BCM harness connector.
      CONTINUITY SPECIFICATION

      Ignition relay BCM Continuity
      Terminal Connector Terminal
      1 M122 82 Existed
    4. Check continuity between ignition relay harness connector and ground.
      CONTINUITY SPECIFICATION

      Ignition relay Ground Continuity
      Terminal
      1 Not existed

      Is the inspection result normal? 

      YES: Go to  6.

      NO: Repair or replace harness.

  3. CHECK IGNITION RELAY GROUND CIRCUIT
    1. Turn ignition switch OFF.
    2. Check continuity between ignition relay harness connector and ground.
      CONTINUITY SPECIFICATION

      Ignition relay Ground Continuity
      Terminal
      2 Existed

      Is the inspection result normal? 

      YES: Go to 4.

      NO: Repair ignition relay ground circuit.

  4. CHECK IGNITION RELAY POWER SUPPLY CIRCUIT-2
    1. Turn ignition switch ON.
    2. Check voltage between ignition relay harness connector and ground.
      VOLTAGE SPECIFICATION

      (+) (-) Voltage (V) (Approx.)
      Ignition relay
      Terminal
      5 Ground Battery voltage

      Is the inspection result normal? 

      YES: Go to 5.

      NO: Check continuity open or short between ignition relay and battery.

  5. CHECK IGNITION RELAY

    Refer to "COMPONENT INSPECTION ".

    Is the inspection result normal? 

    YES: Go to 6.

    NO: Replace ignition relay.

  6. CHECK INTERMITTENT INCIDENT

    Refer to "INTERMITTENT INCIDENT ".

    INSPECTION END