Rear Lifting Sensor Circuit Inspection

WARNING: This page is about a different car, the 2003 Nissan Murano. However, it is still accessible from the selected car via links, so may be relevant.

CHECK REAR END LIFTING SENSOR INPUT/OUTPUT SIGNAL

With CONSULT-II

Check operation with "LIFT RR PULSE" on the DATA MONITOR to make sure pulse changes.

MONITOR ITEM CHART

Monitor item [OPERATION or UNIT
LIFT RR PULSE	-	The rear lifting position (pulse) judged from the rear lifting sensor is displayed.

Fig 1: Displaying "LIFT RR PULSE" on DATA MONITOR

Courtesy of NISSAN MOTOR CO., U.S.A.

Without CONSULT-II

Turn ignition switch OFF.
Check signal between driver seat control unit connector and ground, with oscilloscope.

Fig 2: Oscilloscope Signal Chart
Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 3: Checking Signal Between Driver Seat Control Unit Connector And Ground
Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG

OK : Rear lifting sensor circuit is OK.
NG : GO TO 2.

CHECK REAR LIFTING SENSOR CIRCUIT HARNESS CONTINUITY
1. Disconnect driver seat control unit connector and rear lifting motor connector.
2. Check continuity between driver seat control unit connector B303 terminals 10 (W/R), 31 (R/W) and rear lifting motor connector B310 terminals 10 (W/R), 31C (R/W).
  1. 10 (W/R) - 10 (W/R): Continuity should exist.
  2. 31 (R/W) - 31C (R/W): Continuity should exist.
3. Check continuity between driver seat control unit connector B303 terminals 10 (W/R), 31 (R/W) and ground.
  1. 10 (W/R) - Ground: Continuity should not exist.
  2. 31 (R/W) - Ground: Continuity should not exist.
OK or NG
1. OK : Replace rear lifting motor.
2. NG : Repair or replace harness between driver seat control unit and rear lifting motor.
Fig 4: Checking Continuity Between Driver Seat Control Unit Connector B303 Terminals 10, 31 And Rear Lifting Motor Connector B310 Terminals 10, 31C, And Between Connector B303 Terminals 10, 31 And Ground
Courtesy of NISSAN MOTOR CO., U.S.A.