LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Nissan-Datsun >> 2004 >> Sentra SE-R >> Repair and Diagnosis >> External Pages >> Different car >> Section 1450 (Glass, Window System & Mirrors) >> Power Window System >> Encoder Circuit Check (Passenger Side)
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Encoder Circuit Check (Passenger Side)

WARNING: This page is about a different car, the 2005 Nissan 350Z. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK PASSENGER SIDE POWER WINDOW MOTOR POWER SUPPLY 
    1. Turn ignition switch ON.
    2. Check voltage between passenger side power window motor connector D38 terminal 4 and ground.
      • 4 (R) - Ground: Approx. 10V 

    OK or NG 

    • OK: GO TO  3.
    • NG: GO TO 2.
    Fig 1: Passenger Side Power Window Motor Connector D38 Terminal 4 & Ground Voltage Test
    G02404652Courtesy of NISSAN MOTOR CO., U.S.A.
  2. CHECK HARNESS CONTINUITY 
    1. Turn ignition switch OFF.
    2. Disconnect power window sub-switch and passenger side power window motor connector.
    3. Check continuity between power window sub-switch connector D37 terminal 4 and passenger side power window motor connector D38 terminal 4.
      • 4 (R) - 4 (R): Continuity should exist. 

    OK or NG 

    • OK: Replace power window sub-switch.
    • NG: Repair or replace harness.
    Fig 2: Power Window Sub-Switch Connector D37 Terminal 4 & Passenger Side Power Window Motor Connector D38 Terminal 4 Continuity Test
    G02404653Courtesy of NISSAN MOTOR CO., U.S.A.
  3. CHECK ENCODER GROUND 
    1. Turn ignition switch OFF.
    2. Disconnect passenger side power window motor connector.
    3. Check continuity between passenger side power window motor connector D38 terminal 6 and ground.
      • 6 (GY) - Ground: Continuity should exist. 

    OK or NG 

    • OK: GO TO  5.
    • NG: GO TO 4.
    Fig 3: Passenger Side Power Window Motor Connector D38 Terminal 6 & Ground Continuity Test
    G02404654Courtesy of NISSAN MOTOR CO., U.S.A.
  4. CHECK ENCODER GROUND CIRCUIT 
    1. Disconnect power window sub-switch connector.
    2. Check continuity between power window sub-switch connector D37 terminal 3 and passenger side power window motor connector D38 terminal 6.
      • 3 (GY) - 6 (GY): Continuity should exist. 

    OK or NG 

    • OK: Replace power window sub switch.
    • NG: Repair or replace harness.
    Fig 4: Power Window Sub-Switch Connector D37 Terminal 3 & Passenger Side Power Window Motor Connector D38 Terminal 6 Continuity Test
    G02404655Courtesy of NISSAN MOTOR CO., U.S.A.
  5. CHECK ENCODER SIGNAL 
    1. Connect passenger side power window motor connector.
    2. Turn ignition ON.
    3. Check signal between power window sub-switch connector and ground with oscilloscope.
      Fig 5: Reference Valve Graph
      G02404656Courtesy of NISSAN MOTOR CO., U.S.A.
      Fig 6: Power Window Sub-Switch Connector & Ground Signal Test
      G02404657Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    • OK: Replace power window sub-switch.
    • NG: GO TO 6.
  6. CHECK ENCODER CIRCUIT 
    1. Turn ignition switch OFF.
    2. Disconnect power window sub-switch and passenger side power window motor connector.
    3. Check continuity between power window sub-switch connector D37 terminal 12 and passenger side power window motor connector D38 terminal 3.
      • 12 (PU) - 3 (PU): Continuity should exist. 

    OK or NG 

    • OK: Replace passenger side power window motor.
    • NG: Repair or replace harness.
    Fig 7: Power Window Sub-Switch Connector D37 Terminal 12 & Passenger Side Power Window Motor Connector D38 Terminal 3 Continuity Test
    G02404658Courtesy of NISSAN MOTOR CO., U.S.A.
scientia non olet · About LEMON Manuals