Encoder Circuit Check (Rear LH or RH)/With Front and Rear Power Window Anti-Pinch System
WARNING: This page is about a different car, the 2003 Infiniti G35. However, it is still accessible from the selected car via links, so may be relevant.
- CHECK ENCODER SIGNAL
- Turn ignition switch ON.
- Check the signal between power window sub-switch (rear LH or RH) connector D55 (LH), D75 (RH) and ground with oscilloscope.
Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
- OK : Encoder sw circuit is OK
- NG : GO TO 2.
- CHECK HARNESS CONTINUITY
- Turn ignition switch OFF.
- Disconnect power window sub-switch (rear LH or RH) and power window regulator (rear LH or RH).
- Check continuity between power window sub-switch (rear LH or RH) connector D55 (LH), D75 (RH) terminal 19 and power window regulator (rear LH or RH) connector D52 (LH), D72 (RH) terminal 5.
- 19 (G/Y) - 5 (G/Y): Continuity should exist.
Fig 3: Checking Continuity Between Connector D55 And Connector D52 (LH) Or Connector D75 And Connector D72 (RH)Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
- OK : GO TO 3.
- NG : Repair or replace harness between power window sub-switch (rear LH or RH) and power window regulator (rear LH or RH).
- CHECK ENCODER GROUND
Check continuity between power window regulator (rear LH or RH) connector D52 (LH), D72 (RH) terminal 4 and ground.
- 4 (W/B) - Ground: Continuity should exist.
OK or NG
- OK : Replace power window regulator (rear LH or RH).
- NG : GO TO 4.
- CHECK ENCODER GROUND CIRCUIT
Check continuity between power window regulator (rear LH or RH) connector D52 (LH), D72 (RH) terminal 4 and power window sub-switch (rear LH or RH) connector D55 (LH), D75 (RH) terminal 20.
- 6 (W/B) - 20 (W/B): Continuity should exist.
OK or NG
- OK : Replace power window sub-switch (rear LH or RH).
- NG : Repair or replace harness between power window regulator (rear LH or RH) and power window sub-switch (rear LH or RH).