Infiniti M35/M45 Y50. Manual - part 1076

POWER SEAT(REAR)

SE-101

C

D

E

F

G

H

J

K

L

M

A

B

SE

TIWT2128E

SE-102

POWER SEAT(REAR)

TIWT1390E

POWER SEAT(REAR)

SE-103

C

D

E

F

G

H

J

K

L

M

A

B

SE

Terminals and Reference Values for Rear Seat Control Unit 

NIS00276

Termi-

nal

Wire 

Color

Item

Signal

Input/Output

Condition

Voltage (V) 

(Approx.)

1

R

Power source (BAT)

Input

—

Battery voltage

2

R/W

Sliding motor forward signal

Output

When sliding switch forward is 
operated

Battery voltage

Other than above

0

7

W/R

Sliding motor backward signal

Output

When sliding switch backward 
is operated

Battery voltage

Other than above

0

8

B/L

Ground (power)

—

—

0

10

Y/B

Sliding switch forward signal

Input

When sliding switch forward is 
operated

0

Other than above.

Battery voltage

11

Y/R

Cancel switch signal

Input

Cancel switch ON

5

Cancel switch CANCEL

0

12

Y/G

Sliding sensor signal

Input

Sliding device active

Sliding device inactive

0 or 5

13

B/Y

Ground (signal)

—

—

0

15

L/R

Sliding switch backward signal

Input

When sliding switch backward 
is operated

0

Other than above

Battery voltage

16

L/B

Rear door switch signal

Input

Rear door open (ON)

0

Rear door close (OFF)

Battery voltage

19

Y

Sensor ground

—

—

0

SIIA0690J

SE-104

POWER SEAT(REAR)

Work Flow

NIS00277

1.

Check the symptom and customer's requests.

2.

Understand the outline of system. Refer to 

SE-96, "System Description"

 .

3.

According to the trouble diagnosis chart, repair or replace the cause of the malfunction. Refer to 

SE-104,

"Trouble Diagnoses Symptom Chart"

 .

4.

Does rear power seat operate normally? YES: GO TO 5, NO: GO TO 4.

5.

INSPECTION END.

Trouble Diagnoses Symptom Chart

NIS00278

●

Check that other systems using the signal of the following systems operate normally.

Check Rear Power Seat Power Supply Circuit

NIS00279

1. 

CHECK FUSIBLE LINK 

Check 50A fusible link (letter F  located in the fuse and fusible link box).

NOTE:
Refer to 

SE-96, "Component Parts and Harness Connector Location"

 .

OK or NG

OK

>> GO TO 2.

NG

>> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse, refer to 

PG-

3, "POWER SUPPLY ROUTING CIRCUIT"

 .

2. 

CHECK CIRCUIT BREAKER

Check circuit breaker.

NOTE:
Refer to 

PG-3, "POWER SUPPLY ROUTING CIRCUIT"

 .

OK or NG

OK

>> Check the condition of the harness and connector.

NG

>> Replace the circuit breaker.

Symptom

Diagnoses / service procedure

Refer to page

Rear power seat LH, RH do not operate.

Check rear power seat power supply circuit

SE-104

Rear power seat LH or RH sliding switch does not operate moreover, 
retreat function  does not operate if the door is opened

1. Check rear seat control unit power supply 
and ground circuit 

SE-105

2. Check rear seat sliding motor circuit 

SE-106

Rear power seat LH or RH does not operate, but retreat function 
operates when the door is opened

Check rear power seat switch circuit

SE-107

Rear power seat LH and RH retreat function does not operate,
but operates by sliding switch

Check automatic return cancel switch

SE-110

Rear power seat LH or RH retreat function does not operate,
but operates by a sliding switch

1. Check rear door switch circuit

SE-111

2. Check automatic return cancel switch circuit 

SE-109

3. Check rear seat sliding sensor circuit

SE-112