Rear Power Window Switch 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 switch LH or RH connector D203 (LH), D303 (RH) terminals 2, 3 and ground.
  1. 2, 3 (G/W) - Ground: Battery voltage
OK or NG
1. OK: GO TO 2.
2. NG: Repair or replace harness.
Fig 1: Checking Voltage Between Rear Power Window Switch LH Or RH Connector D203 (LH), D303 (RH) Terminals 2, 3 And Ground
Courtesy of NISSAN MOTOR CO., U.S.A.
CHECK POWER WINDOW GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect rear power window switch LH or RH.
3. Check continuity between rear power window switch LH or RH connector D203 (LH), D303 (RH) terminals 1, 7 and ground.
  1. 1, 7 (L) - Ground: Continuity should exist.
OK or NG
1. OK: Rear power window switch 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 Switch LH Or RH Connector D203 (LH), D303 (RH) Terminals 1, 7 And Ground
Courtesy of NISSAN MOTOR CO., U.S.A.