Rear Power Window Control Unit LH or RH Power Supply and Ground Circuit Check

WARNING: This page is about a different car, the 2005 Infiniti QX56. However, it is still accessible from the selected car via links, so may be relevant.

CHECK POWER WINDOW POWER SUPPLY CIRCUIT
1. Turn ignition switch ON.
2. Check voltage between rear power window control unit LH or RH connector D209 (LH), D309 (RH) terminal 13 and ground.
  1. 13 (W/R) - Ground: Battery voltage
OK or NG
1. OK: GO TO 2.
2. NG: GO TO 3.
Fig 1: Checking Voltage Between Rear Power Window Control Unit LH Or RH Connector D209 (LH), D309 (RH) Terminal 13
Courtesy of NISSAN MOTOR CO., U.S.A.
CHECK POWER WINDOW GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect rear power window control unit LH or RH.
3. Check continuity between rear power window control unit LH or RH connector D209 (LH), D309 (RH) terminal 15 and ground.
  1. 15 (B) - Ground: Continuity should exist.
OK or NG
1. OK: Rear power window control unit LH or RH power supply and ground circuit is OK. Refer to "TROUBLE DIAGNOSES SYMPTOM CHART ".
2. NG: Repair or replace harness.
Fig 2: Checking Continuity Between Rear Power Window Control Unit LH Connector D209 (LH), D309 (RH) Terminal 15 And Ground
Courtesy of NISSAN MOTOR CO., U.S.A.
CHECK REAR POWER WINDOW CONTROL UNIT LH OR RH POWER SUPPLY CIRCUIT
1. Disconnect BCM.
2. Check continuity between BCM connector M20 terminal 69 and rear power window control unit LH or RH connector D209 (LH), D309 (RH) terminal 13.
  1. 69 (W/R) - 13 (W/R): Continuity should exist.
OK or NG
1. OK: GO TO 4.
2. NG: Repair or replace harness.
Fig 3: Checking Continuity Between BCM Connector M20 terminal 69 And Rear Power Window Control Unit LH Or RH Connector D209 (LH), D309 (RH) Terminal 13
Courtesy of NISSAN MOTOR CO., U.S.A.
CHECK BCM OUTPUT SIGNAL
1. Connect BCM.
2. Turn ignition switch ON.
3. Check voltage between BCM connector M20 terminal 69 and ground.
  1. 69 (W/R) - Ground: Battery voltage
OK or NG
1. OK: Check the condition of the harness and the connector.
2. NG: Replace BCM.
Fig 4: Checking Voltage Between BCM Connector M20 Terminal 69 And Ground
Courtesy of NISSAN MOTOR CO., U.S.A.