Nissan Maxima Service and Repair Manual: Lifting sensor (front)
Description
- The lifting sensor (front) is installed to the seat frame.
- The pulse signal is input to the driver seat control unit when the
lifting (front) is operated.
- The driver seat control unit counts the pulse and calculates the lifting
(front) amount of the seat.
Component Function Check
1.CHECK FUNCTION
- Select "LIFT FR PULSE" in "DATA MONITOR" mode with CONSULT.
- Check the lifting sensor (front) signal under the following
conditions.

Diagnosis Procedure
1. CHECK LIFTING SENSOR (FRONT) SIGNAL
- Turn ignition switch ON.
- Read the voltage signal between driver seat control unit harness
connector and ground with an oscilloscope.

2. CHECK LIFTING SENSOR (FRONT) CIRCUIT
- Turn ignition switch OFF.
- Disconnect driver seat control unit and front power seat LH
[lifting motor (front)].
- Check continuity between driver seat control unit harness connector and
front power seat LH [lifting motor (front)] harness connector.

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

3. CHECK LIFTING SENSOR (FRONT) POWER SUPPLY
- Connect driver seat control unit.
- Turn ignition switch ON.
- Check voltage between front power seat LH [lifting motor (front)]
harness connector and ground.

4. CHECK LIFTING SENSOR (FRONT) POWER SUPPLY CIRCUIT
- Turn ignition switch OFF.
- Disconnect driver seat control unit.
- 3. Check continuity between driver seat control unit harness connector
and front power seat LH [lifting motor (front)] harness connector.

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

5. CHECK LIFTING SENSOR (FRONT) GROUND

- Turn ignition switch OFF.
- Check continuity between front power seat LH [lifting motor
(front)] harness connector and ground.

Description
The reclining motor 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 ...
Description
The lifting sensor (rear) is installed to the seat frame.
The pulse signal is input to the driver seat control unit when the
lifting (rear) is operated.
The driver seat control ...
Other materials:
System maintenance
The sensor A is located behind the lower grille
of the front bumper.
To keep the system operating properly, be sure to
observe the following:
Always keep the sensor area of the front
bumper clean.
Do not strike or damage the areas around
the sensor.
Do not cover or attach sticke ...
Service data and specifications (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
Capacity
Thermostat
Radiator
...
B2112 sliding motor
Description
The seat sliding motor is installed to the seat frame.
The seat sliding motor is activated with the driver seat control unit.
Slides the seat forward/backward by changing the rotation direction of
sliding motor.
DTC Logic
DTC DETECTION LOGIC
DTC No.
Trouble diag ...