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Home >> Nissan-Datsun >> 2004 >> Altima S, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 1033 (Interior Lighting System) >> Component Diagnosis >> Battery Saver Output/Power Supply Circuit >> 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 BATTERY SAVER OUTPUT/POWER SUPPLY OUTPUT

    CONSULT-III

    1. Turn ignition switch ON.
    2. Select "BATTERY SAVER" of BCM (BATTERY SAVER) active test item.
    3. While operating the test item, check voltage between BCM connector M17 terminal 4 and ground.
    VOLTAGE REFERENCE CHART

    (+) (-) Test item Voltage
    BCM Ground BATTERY SAVER
    Connector Terminal
    M17 4 OFF 0 V
    ON Battery voltage
    Fig 1: Checking Voltage Between BCM Connector M17 Terminal 4 And Ground
    G05878513Courtesy of NISSAN MOTOR CO., U.S.A.

    Is the inspection result normal? 

    YES: GO TO 2

    NO: Replace BCM. Refer to "REMOVAL AND INSTALLATION ".

  2. CHECK BATTERY SAVER OUTPUT/POWER SUPPLY OPEN CIRCUIT
    1. Turn ignition switch OFF.
    2. Disconnect the following connectors.
      • BCM M17
      • Front room/map lamp assembly
      • Vanity mirror lamp LH
      • Vanity mirror lamp RH
      • Foot lamp LH
      • Foot lamp RH
      • Front step lamp LH
      • Front step lamp RH
      • Rear step lamp LH
      • Rear step lamp RH
      • Trunk room lamp
    3. Check continuity between BCM connector M17 terminal 4 and each interior room lamp connector.
    CONTINUITY REFERENCE CHART

    BCM Each interior room lamp Continuity
    Connector Terminal Connector Terminal
    M17 4 Front room/map lamp assembly R8 1 Yes
    Vanity mirror lamp LH R3 2
    Vanity mirror lamp RH R9 2
    Foot lamp LH M99 1
    Foot lamp RH M100 1
    Front step lamp LH D11 1
    Front step lamp RH D109 1
    Rear step lamp LH D206 1
    Rear step lamp RH D301 1
    Trunk room lamp B36 1

    Is the inspection result normal? 

    YES: GO TO 3

    NO: Repair the harness or connectors.

  3. CHECK BATTERY SAVER OUTPUT/POWER SUPPLY SHORT CIRCUIT

Check continuity between BCM connector M17 terminal 4 and ground.

CONTINUITY REFERENCE CHART

BCM Ground Continuity
Connector Terminal
M17 4 No
Fig 2: Checking Continuity Between BCM Connector M17 Terminal 4 And Ground
G05878514Courtesy of NISSAN MOTOR CO., U.S.A.

Is the inspection result normal? 

YES: Replace the interior room lamp. Refer to "REMOVAL AND INSTALLATION ".

NO: Repair the harness or connectors.