LEMON Manuals: Even more car manuals for everyone
Home >> Nissan-Datsun >> 2002 >> Sentra SE-R, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 1105 (Sunroof) >> Sunroof >> BCM Check

BCM Check

WARNING: This page is about a different car, the 2004 Nissan Murano. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK RETAINED POWER INPUT SIGNAL 

    Check voltage between sunroof motor assembly connector and ground.

    VOLTAGE CHECK CHART

    Connector Terminals (Wire color) Condition Voltage (V) (Approx.)
    (+) (-)
    R6 9 (W) Ground Ignition switch ON Battery voltage
    Within 45 seconds after ignition switch in turned to OFF position Battery voltage
    Within approx.45 seconds after ignition switch OFF while front door LH or RH is open 0
    Fig 1: Checking Voltage Between Sunroof Motor Assembly Connector And Ground
    G03491774Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG

    1. OK: Retained power operation input signal is OK.
    2. NG: GO TO 2.
  2. CHECK HARNESS CONTINUITY 
    1. Turn ignition switch OFF.
    2. Disconnect BCM and sunroof motor assembly connector.
    3. Check continuity between BCM connector M35 terminal 53 and sunroof motor assembly connector R6 terminal 9.

      53 (W/L) - 9 (W): Continuity should exist. 

    4. Check continuity between BCM connector M35 terminal 53 and ground.

      53 (W/L) - Ground: Continuity should not exist. 

      Fig 2: Checking Continuity Between BCM Connector M35 Terminal 53 And Ground
      G03491775Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG

    1. OK: GO TO 3.
    2. NG: Repair or replace harness between BCM and sunroof motor assembly.
  3. CHECK RETAINED POWER OUTPUT SIGNAL 
    1. Connect BCM connector.
    2. Check voltage between BCM connector and ground.
      VOLTAGE CHECK CHART

      Connector Terminals (Wire color) Condition Voltage (V)
      (Approx.)
      (+) (-)
      M35 53 (W/L) Ground Ignition switch ON Battery voltage
      Within 45 seconds after ignition switch in turned to OFF position Battery voltage
      Within approx.45 seconds after ignition switch OFF while front door LH or RH is open 0
      Fig 3: Checking Voltage Between BCM Connector And Ground
      G03491776Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG

    1. OK: Check condition of the harness and the connector.
    2. NG: Replace BCM.
scientia non olet · About LEMON Manuals