Infiniti Q45. Manual - part 839

POWER SEAT

SE-111

C

D

E

F

G

H

J

K

L

M

A

B

SE

Check Rear Power Seat Sliding Motor Circuit

NIS0013V

WITH HEATED SEAT

1. 

CHECK REAR POWER SEAT SLIDING MOTOR POWER SUPPLY

1.

Turn ignition switch OFF.

2.

Check voltage between rear power seat control unit connector
and ground.

OK or NG

OK

>> Rear power seat sliding motor circuit is OK.

NG

>> GO TO 2.

2. 

CHECK REAR POWER SEAT SLIDING MOTOR HARNESS

1.

Disconnect rear power seat control unit connector and rear
power seat sliding motor connector.

2.

Check continuity between rear power seat control unit connector
B162 (LH), B362 (RH) terminal 4, 11 and rear power seat sliding
motor connector B164 (LH), B364 (RH) terminal 4, 11.

3.

Check continuity between rear power seat control unit connector
B162 (LH), B362 (RH) terminal 4, 11 and ground.

OK or NG

OK

>> Replace rear power seat sliding motor.

NG

>> Repair or replace harness between rear power seat control unit and rear power seat sliding motor.

Connector

Terminal

(Wire color)

Condition

Voltage (V) 

(Approx.)

(+)

(–)

B162 (LH)

B362 (RH)

4 (Y)

Ground

Rear power seat switch
(sliding switch) forward

 Battery voltage

Rear power seat switch
(sliding switch) OFF

0

11 (GY)

Rear power seat switch
(sliding switch) backward

 Battery voltage

Rear power seat switch
(sliding switch) OFF

0

PIIA3980E

4 (Y) 

−

 4 (Y)

:Continuity should exist.

11 (GY) 

−

 11 (GY)

:Continuity should exist.

4 (Y) 

−

 Ground

:Continuity should not exist.

11 (GY) 

−

 Ground

:Continuity should not exist.

PIIA3981E

SE-112

POWER SEAT

WITHOUT HEATED SEAT

1. 

CHECK REAR POWER SEAT SLIDING MOTOR POWER SUPPLY

1.

Turn ignition switch OFF.

2.

Check voltage between rear power seat control unit connector
and ground.

OK or NG

OK

>> Rear power seat sliding motor circuit is OK.

NG

>> GO TO 2.

2. 

CHECK REAR POWER SEAT SLIDING MOTOR HARNESS

1.

Disconnect rear power seat control unit connector and rear
power seat sliding motor connector.

2.

Check continuity between rear power seat control unit connector
B168 (LH), B368 (RH) terminal 4, 11 and rear power seat sliding
motor connector B164 (LH), B364 (RH) terminal 4, 11.

3.

Check continuity between rear power seat control unit connector
B168 (LH), B368 (RH) terminal 4, 11 and ground.

OK or NG

OK

>> Replace rear power seat sliding motor.

NG

>> Repair or replace harness between rear power seat control unit and rear power seat sliding motor.

Connector

Terminal

(Wire color)

Condition

Voltage (V) 

(Approx.)

(+)

(–)

B168 (LH)

B368 (RH)

4 (Y)

Ground

Rear power seat switch
(sliding switch) forward

 Battery voltage

Rear power seat switch
(sliding switch) OFF

0

11 (GY)

Rear power seat switch
(sliding switch) backward

 Battery voltage

Rear power seat switch
(sliding switch) OFF

0

PIIA3999E

4 (Y) 

−

 4 (Y)

:Continuity should exist

11 (GY) 

−

 11 (GY)

:Continuity should exist

4 (Y) 

−

 Ground

:Continuity should not exist

11 (GY) 

−

 Ground

:Continuity should not exist

PIIA4000E

POWER SEAT

SE-113

C

D

E

F

G

H

J

K

L

M

A

B

SE

Check Rear Power Seat Switch Circuit

NIS0013W

WITH HEATED SEAT

1. 

CHECK REAR POWER SEAT SWITCH POWER SUPPLY

1.

Turn ignition switch OFF.

2.

Check voltage between rear power seat control unit connector
and ground.

OK or NG

OK

>> Rear power seat switch circuit check is OK.

NG

>> GO TO 2.

2. 

CHECK REAR POWER SEAT SWITCH HARNESS

1.

Disconnect rear power seat control unit connector and rear
power seat switch connector.

2.

Check continuity between rear power seat control unit connector
B163 (LH), B363 (RH) terminal 18, 24 and rear power seat
switch connector D55 (LH), D75 (RH) terminal 7, 8.

3.

Check continuity between rear power seat control unit connector B163 (LH), B363 (RH) terminal 18, 24
and ground.

OK or NG

OK

>> GO TO 3.

NG

>> Repair or replace harness between rear power seat control unit and rear power seat switch.

Connector

Terminal

(Wire color)

Condition

Voltage (V) 

(Approx.)

(+)

(–)

B163 (LH)

B363 (RH)

18 (BR/W)

Ground

Rear power seat switch
(sliding switch) backward

0

Rear power seat switch
(sliding switch) OFF

 Battery voltage

24 (L/G)

Rear power seat switch
(sliding switch) forward

0

Rear power seat switch
(sliding switch) OFF

 Battery voltage

PIIA3983E

LH

18 (BR/W) 

−

 7 (G/Y)

:Continuity should exist

24 (L/G) 

−

 8 (OR/L)

:Continuity should exist

RH

18 (BR/W) 

−

 8 (OR/L)

:Continuity should exist

24 (L/G) 

−

 7 (G/Y)

:Continuity should exist

18 (BR/W) 

−

 Ground

:Continuity should not exist

24 (L/G) 

−

 Ground

:Continuity should not exist

PIIA3984E

SE-114

POWER SEAT

3. 

CHECK REAR POWER SEAT SWITCH

Check continuity between rear power seat switch as follows.

OK or NG

OK

>> GO TO 4.

NG

>> Replace rear power seat switch.

4. 

CHECK REAR POWER SEAT SWITCH GROUND CIRCUIT

Check continuity between rear power seat switch connector D55
(LH), D75 (RH) terminal 2 and ground.

OK or NG

OK

>> Replace rear power seat control unit.

NG

>> Repair or replace harness between rear power seat

switch and ground.

WITHOUT HEATED SEAT

1. 

CHECK REAR POWER SEAT SWITCH POWER SUPPLY

1.

Turn ignition switch OFF.

2.

Check voltage between rear power seat control unit connector
and ground.

OK or NG

OK

>> Rear power seat switch circuit is OK.

NG

>> GO TO 2.

Terminal

Condition

Continuity

LH

7

2

Rear power seat switch (sliding switch) backward

Yes

Rear power seat switch (sliding switch) OFF

No

8

Rear power seat switch (sliding switch) forward

Yes

Rear power seat switch (sliding switch) OFF

No

RH

7

Rear power seat switch (sliding switch) forward

Yes

Rear power seat switch (sliding switch) OFF

No

8

Rear power seat switch (sliding switch) backward

Yes

Rear power seat switch (sliding switch) OFF

No

PIIA3985E

2 (B) 

−

 Ground

:Continuity should exist

PIIA3986E

Connector

Terminal

(Wire color)

Condition

Voltage (V) 

(Approx.)

(+)

(–)

B168 (LH)

B368 (RH)

18 (BR/W)

Ground

Rear power seat switch
(sliding switch) backward

0

Rear power seat switch
(sliding switch) OFF

 Battery voltage

24 (L/G)

Rear power seat switch
(sliding switch) forward

0

Rear power seat switch
(sliding switch) OFF

 Battery voltage

PIIA4017E