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Home >> Infiniti >> 2011 >> G37 IPL, Standard >> Repair and Diagnosis >> Accessories & Equipment >> Exterior Lights >> Exterior Lighting System -- G37 Coupe >> DTC/Circuit Diagnosis >> Daytime Running Light Relay Circuit >> Diagnosis Procedure

Diagnosis Procedure

  1. CHECK DAYTIME RUNNING LIGHT RELAY FUSE

    Check that the following fuse is not fusing.

    FUSE REFERENCE CHART

    Unit Location Fuse No. Capacity
    Daytime running light relay IPDM E/R #59 10 A

    Is the fuse fusing? 

    YES: Replace the fuse after repairing the applicable circuit.

    NO: GO TO 2.

  2. CHECK DAYTIME RUNNING LIGHT RELAY POWER SUPPLY
    1. Remove the daytime running light relay.
    2. Check voltage between the daytime running light relay harness connector and the ground.
      VOLTAGE REFERENCE CHART

      Terminals Voltage (Approx.)
      (+) (-)
      Daytime running light relay Ground
      Connector Terminal
      E53 1 Battery voltage
      3

      Is the measurement value normal? 

      YES: GO TO 3.

      NO: Repair harnesses or connectors.

  3. CHECK DAYTIME RUNNING LIGHT RELAY

    Check the daytime running light relay. Refer to "COMPONENT INSPECTION ".

    Is the daytime running light relay normal? 

    YES: GO TO 4.

    NO: Replace daytime running light relay.

  4. CHECK DAYTIME RUNNING LIGHT RELAY CONTROL SIGNAL OUTPUT

    CONSULT-III ACTIVE TEST

    1. Turn the ignition switch OFF.
    2. Install the daytime running light relay.
    3. Turn the ignition switch ON.
    4. Select "EXTERNAL LAMPS" of IPDM E/R active test item.
    5. With operating the test item, check voltage between the IPDM E/R harness connector and the ground.
      VOLTAGE REFERENCE CHART

      Terminals Test item Voltage (Approx.)
      (+) (-)
      IPDM E/R Ground EXTERNAL LAMPS
      Connector Terminal
      E9 105 TAIL 0 V
      Off Battery voltage

      Is the measurement value normal? 

      YES: Check the parking lamp circuit. Refer to "DIAGNOSIS PROCEDURE ".

      Fixed at 0 V: GO TO 5.

      Fixed at battery voltage: Replace IPDM E/R.

  5. CHECK DAYTIME RUNNING LIGHT RELAY CONTROL SIGNAL OPEN CIRCUIT
    1. Remove the daytime running light relay.
    2. Disconnect IPDM E/R harness connector.
    3. Check continuity between the IPDM E/R harness connector and the daytime running light relay harness connector.
      CONTINUITY REFERENCE CHART

      IPDM E/R Daytime running light relay Continuity
      Connector Terminal Connector Terminal
      E9 105 E53 2 Existed

      Does continuity exist? 

      YES: GO TO 6.

      NO: Repair the harnesses or connectors.

  6. CHECK DAYTIME RUNNING LIGHT RELAY CONTROL SIGNAL SHORT CIRCUIT

    Check continuity between the IPDM E/R harness connector and the ground.

    CONTINUITY REFERENCE CHART

    IPDM E/R Ground Continuity
    Connector Terminal
    E9 105 Not existed

    Does continuity exist? 

    YES: Repair the harnesses or connectors.

    NO: Replace IPDM E/R.