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:
Oil pump
Removal and Installation
REMOVAL
Remove the engine from the vehicle. Refer to EM-103, "Removal and
Installation".
Remove the upper oil pan. Refer to EM-37, "Removal and
Installation (Upper Oil Pan)".
Remove the timing chain. Refer to EM-64, "Removal and
Installati ...
Door request switch
Description
Transmits door lock/unlock operation to BCM.
Component Function Check
1. CHECK FUNCTION
With CONSULT
Check door request switch REQ SW-DR, REQ SW-AS in Data Monitor mode.
Diagnosis Procedure
1. CHECK DOOR REQUEST SWITCH OUTPUT SIGNAL
Turn ignition switch OFF.
Check ...
U1000 CAN comm circuit
Description
CAN (Controller Area Network) is a serial communication line for real time
application. It is an on-vehicle multiplex communication line with high data
communication speed and excellent error detection ability. Many electronic
control units are equipped on a vehicle and each contr ...