Reclining Sensor

RECLINING SENSOR

Description

- The reclining motor LH is installed to the seatback assembly.
- The pulse signal is input to the driver seat control unit when the reclining is operated.
- The driver seat control unit counts the pulse and calculates the reclining amount of the seat.


Component Function Check


1. CHECK FUNCTION

1.Select "RECLN PULSE" in "DATA MONITOR" mode with CONSULT.
2.Check reclining sensor signal under the following conditions.





Is the inspection result normal?
YES- Inspection End.
NO- Perform diagnosis procedure. Refer to "Diagnosis Procedure" .


Diagnosis Procedure

Regarding Wiring Diagram information, refer to "Wiring Diagram" [1][2]Electrical Diagrams.

1. CHECK RECLINING SENSOR SIGNAL

1.Turn ignition switch ON.
2.Read voltage signal between driver seat control unit harness connector and ground with oscilloscope.





Is the inspection result normal?
YES- Replace driver seat control unit. Refer to "Removal and Installation" Service and Repair.
NO- GO TO 2.

2. CHECK RECLINING SENSOR CIRCUIT

1.Turn ignition switch OFF.
2.Disconnect driver seat control unit and reclining motor LH.
Revision: March 20122013 Infiniti JX
3.Check continuity between driver seat control unit harness connector and reclining motor LH harness connector.





4.Check continuity between driver seat control unit harness connector and ground.





Is the inspection result normal?
YES- GO TO 3.
NO- Repair or replace harness.

3. CHECK RECLINING SENSOR POWER SUPPLY

1.Connect driver seat control unit.
2.Turn ignition switch ON.
3.Check voltage between reclining motor LH harness connector and ground.





Is the inspection result normal?
YES- GO TO 5.
NO- GO TO 4.

4. CHECK RECLINING SENSOR POWER SUPPLY CIRCUIT

1.Turn ignition switch OFF.
2.Disconnect driver seat control unit.
3.Check continuity between driver seat control unit harness connector and reclining motor LH harness connector.





4.Check continuity between driver seat control unit harness connector and ground.





Is the inspection result normal?
YES- Replace driver seat control unit. Refer to "Removal and Installation" Service and Repair.
NO- Repair or replace harness.

5. CHECK RECLINING SENSOR GROUND

1.Turn ignition switch OFF.
2.Check continuity between reclining motor LH harness connector and ground.
Revision: March 20122013 Infiniti JX





Is the inspection result normal?
YES- Replace reclining motor LH. Refer to "Removal and Installation" Removal and Installation.
NO- Repair or replace harness.
Revision: March 20122013 Infiniti JX