Infiniti QX56 (Z62). Manual - part 3

PRECAUTIONS

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PRECAUTION

PRECAUTIONS

Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT 
PRE-TENSIONER"

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The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the “SRS AIR BAG” and “SEAT BELT” of this
Service Manual.

WARNING:

• To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in

the event of a collision that would result in air bag inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.

• Improper maintenance, including incorrect removal and installation of the SRS, can lead to personal

injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag
Module, see the “SRS AIR BAG”.

• Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this

Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or har-
ness connectors.

PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS

WARNING:

• When working near the Air Bag Diagnosis Sensor Unit or other Air Bag System sensors with the

ignition ON or engine running, DO NOT use air or electric power tools or strike near the sensor(s)
with a hammer. Heavy vibration could activate the sensor(s) and deploy the air bag(s), possibly
causing serious injury.

• When using air or electric power tools or hammers, always switch the ignition OFF, disconnect the

battery, and wait at least 3 minutes before performing any service.

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COMPONENT PARTS

SYSTEM DESCRIPTION

COMPONENT PARTS

Component Parts Location

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JMJIA3772GB

1.

A/T shift selector (detention switch)
Refer to 

TM-10, "A/T CONTROL 

SYSTEM : Component Parts Loca-
tion"

2.

TCM
Refer to 

TM-10, "A/T CONTROL 

SYSTEM : Component Parts Loca-
tion"

3.

Door mirror (passenger side)

4.

Unified meter and A/C amp.
Refer to 

MWI-6, "METER SYSTEM : 

Component Parts Location"

5.

BCM
Refer to 

BCS-4, "BODY CONTROL 

SYSTEM : Component Parts Loca-
tion"

6.

Tilt & telescopic switch

COMPONENT PARTS

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Component Description

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7.

ABS actuator and electric unit (con-
trol unit)
Refer to 

BRC-10, "Component Parts 

Location"

 (With VDC) or 

BRC-142, 

"Component Parts Location"

  (With 

BRAKE ASSIST) or 

BRC-149, 

"Component Parts Location"

 (With 

INTELLIGENT BRAKE ASSIST)

8.

Door mirror remote control switch

9.

Seat memory switch

10. Sliding, lifting switch

11.

Reclining switch

12. Driver side door switch

13. Door mirror (driver side)

14. Tilt motor

15. Telescopic motor

16. Automatic drive positioner control 

unit

17. Lifting motor (rear)

18. Diver seat control unit

19. Lifting motor (front)

20. Sliding motor

21. Reclining motor

A.

View with steering column cover low-
er removed

B.

View with instrument lower panel LH 
removed

C.

View with seat cushion pad and seat 
back pad removed

D.

Backside of seat cushion

E.

View with seat cushion pad and seat 
back pad removed

Component parts

Description

Driver seat control unit

• Main units of automatic drive positioner system.
• It is connected to the CAN.
• It communicates with automatic drive positioner control unit via 

UART communication.

• It perform memory function after receiving the door unlock signal 

from BCM.

• The address of each part is recorded.
• Operates each motor of seat to the registered position.
• Requests the operation of steering column and door mirror to 

automatic drive positioner control unit

• Operates the specific seat motor with the signal from power seat 

switch.

• Transmits the ignition switch signal (ACC/ON) via UART com-

munication to automatic driver positioner control unit.

Automatic drive positioner control unit

• It communicates with driver seat control unit via UART commu-

nication.

• Perform various controls with the instructions of driver seat con-

trol unit.

• Perform the controls of tilt & telescopic, door mirror and seat 

memory switch.

• Operates steering column and door mirror with the signal from 

the driver seat control

BCM

Recognizes the following status and transmits it to driver seat con-
trol unit via CAN communication.
• Handle position: LHD
• Driver door: OPEN/CLOSE
• Ignition switch position: ACC/ON
• Steering lock unit status: LOCK/UNLOCK
• Door lock: UNLOCK (with Intelligent key or driver side door re-

quest switch operation)

• Key  ID
• Starter: CRANKING/OTHER

IPDM E/R

ON/OFF signal of A/T shift selector (detention switch) is transmit-
ted to driver seat control unit via CAN communication.

TCM

The following signals are transmitted to driver seat control unit via 
CAN communication.
• Shift position signal (P range)
• Identification of transmission: A/T

Unified meter and A/C amp.

Transmit the vehicle speed signal to driver seat control unit via 
CAN communication.

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< SYSTEM DESCRIPTION >

COMPONENT PARTS

ABS actuator and electric unit (control unit)

Transmit the vehicle speed signal to driver seat control unit via 
CAN communication.

A/T sift selector (Detention switch)

• Detention switch is installed on A/T shift selector. It is turned 

OFF when A/T shift selector is in P position.

• Driver seat control unit judges that A/T shift selector is in P posi-

tion if continuity does not exist in this circuit.

Door mirror remote con-
trol switch

Mirror switch

• Mirror switch is integrated in door mirror remote control switch.
• It operates angle of door mirror face.
• It transmits mirror face adjust operation to automatic drive posi-

tioner control unit.

Changeover switch

• Changeover switch is integrated in door mirror remote control 

switch.

• Changeover switch has three positions (L, N and R).
• It changes operating door mirror motor by transmitting control 

signal to automatic drive positioner control unit.

Open/close switch

• Open/close switch is integrated in door mirror remote control 

switch.

• Power is supplied to folding mirror from door mirror remote con-

trol switch when operating switch.

Tilt & telescopic switch

Tilt switch

• Tilt switch is equipped to steering column.
• The operation signal is input to automatic drive positioner control 

unit when tilt switch is operated.

Telescopic switch

• Telescopic switch is equipped to steering column.
• The operation signal is input to automatic drive positioner control 

unit when telescopic switch is operated.

Seat memory switch

Set switch

It is used for registration and setting change of driving position and 
Intelligent Key interlock function.

Seat memory switch

• The maximum 2 driving positions can be registered by memory 

switch 1 to 2.

• Driving position is set to the registered driving position when 

memory switch is pressed while operation conditions are satis-
fied.

Seat memory indicator

Memory indicator indicates the status of auto driving position sys-
tem by turning ON or blinking.

Power seat switch

Sliding switch

• Sliding switch is equipped to power seat switch on seat cushion 

side surface.

• The operation signal is input to driver seat control unit when slid-

ing switch is operated.

Reclining switch

• The operation signal is input to driver seat control unit when re-

clining switch is operated.

• The operation signal is input to driver seat control unit when re-

clining switch is operated.

Lifting switch (front)

• Lifting switch (front) is equipped to power seat switch on seat 

cushion side surface.

• The operation signal is input to driver seat control unit when lift-

ing switch (front) is operated.

Lifting switch (rear)

• Lifting switch (rear) is equipped to power seat switch on seat 

cushion side surface.

• The operation signal is input to driver seat control unit when lift-

ing switch (rear) is operated.

Component parts

Description