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Home >> Infiniti >> 2011 >> EX35 Base, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 84 (Power Control System (CROSSCABRIOLET)) >> Power Distribution System >> DTC/Circuit Diagnosis >> DTC B2615: Blower Relay Circuit >> Diagnosis Procedure

Diagnosis Procedure

WARNING: This page is about a different car, the 2011 Nissan Murano. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK BLOWER RELAY POWER SUPPLY-1
    1. Turn ignition switch OFF.
    2. Remove blower relay.
    3. Check voltage between blower relay harness connector and ground.
      VOLTAGE REFERENCE CHART

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

      Is the inspection result normal? 

      YES: GO TO  4.

      NO: GO TO 2.

  2. CHECK BLOWER RELAY POWER SUPPLY-2
    1. Disconnect fuse block (J/B) connector.
    2. Check voltage between fuse block (J/B) harness connector and ground.
      VOLTAGE REFERENCE CHART

      (+) (-) Condition Voltage (V) (Approx.)
      Fuse block (J/B)
      Connector Terminal
      E103 6F Ground Ignition switch OFF or ACC 0
      ON Battery voltage

      Is the inspection result normal? 

      YES: Replace fuse block (J/B).

      NO: GO TO 3.

  3. CHECK BLOWER RELAY POWER SUPPLY CIRCUIT-1
    1. Disconnect BCM connector.
    2. Check continuity between fuse block (J/B) harness connector and BCM harness connector.
      CONTINUITY REFERENCE CHART

      Fuse block (J/B) BCM Continuity
      Connector Terminal Connector Terminal
      E103 6F M122 102 Existed
    3. Check continuity between fuse block (J/B) harness connector and ground.
      CONTINUITY REFERENCE CHART

      Fuse block (J/B) Ground Continuity
      Connector Terminal
      E103 6F Not existed

      Is the inspection result normal? 

      YES: Replace BCM. Refer to , "REMOVAL AND INSTALLATION ".

      NO: Repair or replace harness.

  4. CHECK BLOWER RELAY GROUND CIRCUIT

    Check continuity between blower relay harness connector and ground.

    CONTINUITY REFERENCE CHART

    Blower relay Ground Continuity
    Terminal
    2 Existed

    Is the inspection result normal? 

    YES: GO TO 5.

    NO: Repair blower relay ground circuit.

  5. CHECK BLOWER RELAY POWER SUPPLY CIRCUIT-2
    1. Install blower relay.
    2. Turn ignition switch ON.
    3. Check voltage between blower relay harness connector and ground.
      VOLTAGE REFERENCE CHART

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

      Is the inspection result normal? 

      YES: GO TO  7.

      NO: GO TO 6.

  6. CHECK BLOWER RELAY

    Refer to "COMPONENT INSPECTION ".

    Is the inspection result normal? 

    YES: Replace fuse block (J/B).

    NO: Replace blower relay.

  7. CHECK INTERMITTENT INCIDENT

    Refer to , "INTERMITTENT INCIDENT ".

    INSPECTION END

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