Infiniti G37 Coupe. Manual - part 1086

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< FUNCTION DIAGNOSIS >

POWER SEAT FOR DRIVER SIDE

Backward Operation

3

—

Sliding motor
(forward)

Driver seat control unit operates the seat sliding 
motor forward when it detects that the power walk-
in switch is operated.

4

Sliding limit switch

—

Driver seat control unit stops the seat sliding motor 
when it detects that the seat sliding reaches the 
front end position by the sliding limit switch.

Order

Inputs

Outputs

Control unit condition

Order

Inputs

Outputs

Control unit condition

1

Forward switch

—

Driver seat control unit detects that the seatback is 
folded up by the signal from the forward switch.

2

Power walk-in switch

—

The operation signal is inputted to the driver seat 
control unit when the power walk-in switch is oper-
ated.

3

—

Sliding motor
(backward)

Driver seat control unit operates the sliding motor 
backward when it detects that the power walk-in 
switch is operated.

4

Sliding sensor

—

Driver seat control unit stops the seat sliding motor 
when the seat sliding position reaches the position 
before performing the forward operation by the 
signal from sliding sensor.

POWER SEAT FOR DRIVER SIDE

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< FUNCTION DIAGNOSIS >

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POWER WALK-IN FUNCTION : Component Parts Location

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POWER WALK-IN FUNCTION : Component Description

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CONTROL UNITS

JMJIA0913ZZ

1.

BCM M122, M123

2.

Seat belt buckle switch (driver side) 
B13 

3.

Power walk-in switch B513

4.

Reclining switch
(Power seat switch B511)

5.

Sliding, lifting switch
(Power seat switch B511)

6.

Reclining relay (backward) B518

7.

Sliding relay (forward) B515

8.

Sliding relay (backward) B516

9.

Reclining relay (forward) B517

10. Reclining motor B524

11.

Driver seat control unit B503, B504

12. Sliding sensor B526

13. Lifting motor (front) B528

14. Sliding motor B525

15. Lifting motor (rear) B530

16. Forward switch B512

17. Sliding limit switch B514

18. Driver side door switch B16

19. Unified meter and A/C amp. M67

A.

Dash side lower (passenger side)

B.

View with seat cushion pad and seat 
back pad are removed.

C.

View with back side of seat cushion.

D.

View with seat back pad is removed. E.

View with seat cushion pad is re-
moved.

F.

Behind cluster lid C

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< FUNCTION DIAGNOSIS >

POWER SEAT FOR DRIVER SIDE

INPUT PARTS

Switches

Sensors

OUTPUT PARTS

Item

Function

Driver seat control unit

Operates the specific seat motor with the signal from the power seat switch.

Unified meter and A/C amp.

Transmit the vehicle speed signal to the driver seat control unit via CAN communi-
cation.

BCM

Transmit the following status to the driver seat control unit via CAN communication.
• Driver door: OPEN/CLOSE
• Starter: CRANKING/OTHER

Item

Function

Driver side door switch

Detect driver side door open/close status. 

Power walk-in switch

Perform the power walk-in operation by operating the power walk-in switch.

Sliding limit switch

Detect the front end position of seat sliding during the power walk-in function front-
ward operation.

Seat belt buckle switch

Detect the seat belt fastening/releasing condition.

Forward switch

Detect the folded up/folded down condition of seatback that is the operation condi-
tion of power walk-in function.

Item

Function

Sliding sensor

Detect the frontward/rearward position of seat.

Item

Function

Sliding motor

Slide the seat frontward/rearward.

POWER SEAT FOR PASSENGER SIDE

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< FUNCTION DIAGNOSIS >

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POWER SEAT FOR PASSENGER SIDE

POWER SEAT FUNCTION

POWER SEAT FUNCTION : System Diagram

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POWER SEAT FUNCTION : System Description

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BCM can operate regardless of the ignition switch position, because battery power is supplied at all times to
power seat switch.

SLIDING OPERATION

While operating the sliding switch located in power seat switch, sliding motor operates and makes possible the
seat frontward and backward position adjustment.

RECLINING OPERATION

While operating the reclining switch located in power seat switch, reclining motor operates and makes possi-
ble the seat back forward and backward position adjustment.

LIFTING OPERATION

While operating the lifting switch located in power seat switch, lifting motor operates and makes possible the
seat cushion (front/rear) upward and downward position adjustment.

*: If seat lifting (front/rear) function is equipped.

JMJIA0923GB