Reclining Switch System Inspection

CHECK FUNCTION
With CONSULT-II

With "RECLINING SW-FR, RECLINING SWRR" on the DATA MONITOR, operate the reclining switch to check ON/OFF operation.

Fig 1: Reclining Switch Operation Chart (With CONSULT-II)
Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 2: Checking Function - RECLINING SW-FR, RECLINING SWRR (With CONSULT-II)
Courtesy of NISSAN MOTOR CO., U.S.A.

Without CONSULT-II

Carry out "SWITCH MONITOR" in the on-board diagnosis function, and operate the reclining switch to check. Refer to "SWITCH MONITOR ".

OK or NG
1. OK: Replace the driver seat control unit.
2. NG: GO TO 2.
CHECK RECLINING SWITCH INPUT/OUTPUT
1. Turn ignition switch OFF.
2. Check voltage between driver seat control unit connector and ground.
  
  Fig 3: Driver Seat Control Unit Connector Terminals Voltage Reference Chart
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Fig 4: Checking Reclining Switch Input/Output
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
1. OK: System is OK.
2. NG: GO TO 3.
CHECK HARNESS CONTINUITY
1. Disconnect driver seat control unit connector and power seat switch (driver side) connector.
2. Check continuity between driver seat control unit connector B143 terminals 18 (GY/B), 24 (SB) and power seat switch (driver side) connector B144 terminals 18 (GY/B), 24 (SB).
  1. 18 (GY/B) - 18 (GY/B): Continuity should exist.
  2. 24 (SB) - 24 (SB): Continuity should exist.
  Fig 5: Checking Harness Continuity
  Courtesy of NISSAN MOTOR CO., U.S.A.
3. Check continuity between driver seat control unit connector B143 terminals 18 (GY/B), 24 (SB) and ground.
  1. 18 (GY/B) - Ground: Continuity should not exist.
  2. 24 (SB) - Ground: Continuity should not exist.
OK or NG
1. OK: GO TO 4.
2. NG: Repair or replace harness between driver seat control unit and power seat switch.
CHECK RECLINING SWITCH
Check continuity between driver seat control unit connector B144 terminal 18, 24 and 15.

Fig 6: Driver Seat Control Unit Connector Terminals Continuity Reference Chart
Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 7: Checking Reclining Switch
Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG
1. OK: GO TO 5.
2. NG: Replace power seat switch (driver side).
CHECK POWER SEAT SWITCH GROUND CIRCUIT
Check continuity between power seat switch B144 terminal 15 (B) and ground.
1. 15 (B) - Ground: Continuity should exist.
Fig 8: Checking Power Seat Switch Ground Circuit
Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG
1. OK: Check the condition of the harness and connector.
2. NG: Repair or replace harness between power seat switch (driver side) and ground.