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Home >> Nissan-Datsun >> 2004 >> Altima S, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 1026 (Security Control System) >> Component Diagnosis >> B210D Starter Relay >> Diagnosis Procedure

Diagnosis Procedure

WARNING: This page is about a different car, the 2009 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK STARTER RELAY POWER SUPPLY CIRCUIT
    1. Turn ignition switch OFF.
    2. Disconnect IPDM E/R harness connector.
    3. Check voltage between IPDM E/R harness connector and ground.
      VOLTAGE REFERENCE CHART

      IPDM E/R Ground Voltage (V)
      Connector Terminal
      E18 36 Ground Battery voltage
      Fig 1: Checking Voltage Between IPDM E/R Harness Connector And Ground
      G05691918Courtesy of NISSAN MOTOR CO., U.S.A.

      Is the inspection result normal? 

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

      NO: Check harness for open or short between IPDM E/R and battery.



  1. CHECK STARTER RELAY OUTPUT SIGNAL/CVT MODELS
    1. Turn ignition switch OFF.
    2. Disconnect BCM harness connector.
    3. Check voltage between BCM harness connector and ground.
      Fig 1: Checking Voltage Between BCM Harness Connector And Ground
      G05046605Courtesy of NISSAN MOTOR CO., U.S.A.
      VOLTAGE REFERENCE CHART

      BCM connector Ground Condition Voltage (V)
      Connector Terminal Ignition switch Brake pedal CVT selector lever
      M21 132 Ground ON Depressed P or N Battery voltage
      Other than above 0

      Is the inspection result normal? 

      YES: GO TO  3.

      NO: GO TO 2.

  2. CHECK STARTER RELAY OUTPUT SIGNAL CIRCUIT
    1. Disconnect IPDM E/R harness connector.
    2. Check continuity between IPDM E/R harness connector and BCM harness connector.
      CONTINUITY REFERENCE CHART

      IPDM E/R BCM Continuity
      Connector Terminal Connector Terminal
      A: E17 46 B: M21 132 Yes
    3. Check continuity between BCM harness connector and ground.
      CONTINUITY REFERENCE CHART

      IPDM E/R Ground Continuity
      Connector Terminal
      A: E17 46 Ground No
      Fig 2: Checking Continuity Between IPDM E/R Harness Connector And Ground
      G05691888Courtesy of NISSAN MOTOR CO., U.S.A.

      Is the inspection result normal? 

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

      NO: Repair harness connector.

  3. CHECK STARTER RELAY POWER SUPPLY CIRCUIT
    1. Turn ignition switch OFF.
    2. Disconnect IPDM E/R harness connector.
    3. Check voltage between IPDM E/R harness connector and ground.
      VOLTAGE REFERENCE CHART

      IPDM E/R Ground Voltage (V)
      Connector Terminal
      E17 46 Ground Battery voltage
      Fig 3: Checking Voltage Between IPDM E/R Harness Connector And Ground
      G05691922Courtesy of NISSAN MOTOR CO., U.S.A.

      Is the inspection result normal? 

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

      NO: Check harness for open or short between IPDM E/R and battery.

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