Infiniti Q45. Manual - part 838

POWER SEAT

SE-107

C

D

E

F

G

H

J

K

L

M

A

B

SE

Check Front Power Seat Passenger Side Reclining Circuit

NIS0013R

1. 

CHECK POWER SEAT SWITCH

1.

Turn ignition switch OFF.

2.

Disconnect front power seat passenger side switch connector.

3.

Check continuity between front power seat passenger side
switch as follows.

OK or NG

OK

>> GO TO 2.

NG

>> Replace front power seat passenger side switch.

2. 

CHECK RECLINING MOTOR HARNESS

1.

Disconnect reclining motor connector.

2.

Check continuity between front power seat passenger side
switch connector B342 terminals 2, 9 and reclining motor con-
nector B344 terminals 2, 9.

3.

Check continuity between front power seat passenger side
switch connector B342 terminals 2, 9 and ground.

OK or NG

OK

>> Replace reclining motor.

NG

>> Repair or replace harness between front power seat passenger side switch and reclining motor.

Terminal

Condition

Continuity

2

15A

Reclining switch backward

Yes

16

Reclining switch forward

Yes

15A, 16

Other than above

No

9

15A

Reclining switch forward

Yes

16

Reclining switch backward

Yes

15A, 16

Other than above

No

PIIA3970E

2 (G) 

−

 2 (G)

:Continuity should exist

9 (PU) 

−

 9 (PU)

:Continuity should exist

2 (G) 

−

 Ground

:Continuity should not exist

9 (PU) 

−

 Ground

:Continuity should not exist

PIIA3971E

SE-108

POWER SEAT

Check Front Power Seat Passenger Side Front Lifting Circuit

NIS0013S

1. 

CHECK POWER SEAT SWITCH

1.

Turn ignition switch OFF.

2.

Disconnect front power seat passenger side switch connector.

3.

Check continuity between front power seat passenger side
switch as follows.

OK or NG

OK

>> GO TO 2.

NG

>> Replace front power seat passenger side switch.

2. 

CHECK FRONT LIFTING MOTOR HARNESS

1.

Disconnect front lifting motor connector.

2.

Check continuity between front power seat passenger side
switch connector B342 terminals 10, 11 and front lifting motor
connector B346 terminals 10, 11.

3.

Check continuity between front power seat passenger side
switch connector B342 terminals 10, 11 and ground.

OK or NG

OK

>> Replace front lifting motor.

NG

>> Repair or replace harness between front power seat passenger side switch and front lifting motor.

Terminal

Condition

Continuity

10

15A

Front lifting switch up

Yes

16

Front lifting switch down

Yes

15A, 16

Other than above

No

11

15A

Front lifting switch down

Yes

16

Front lifting switch up

Yes

15A, 16

Other than above

No

PIIA3973E

10 (OR) 

−

 10 (OR)

:Continuity should exist.

11 (LG) 

−

 11 (LG)

:Continuity should exist.

10 (OR) 

−

 Ground

:Continuity should not exist.

11 (LG) 

−

 Ground

:Continuity should not exist.

PIIA3974E

POWER SEAT

SE-109

C

D

E

F

G

H

J

K

L

M

A

B

SE

Check Front Power Seat Passenger Side Rear Lifting Circuit

NIS0013T

1. 

CHECK POWER SEAT SWITCH

1.

Turn ignition switch OFF.

2.

Disconnect front power seat passenger side switch connector.

3.

Check continuity between front power seat passenger side
switch as follows.

OK or NG

OK

>> GO TO 2.

NG

>> Replace front power seat passenger side switch.

2. 

CHECK REAR LIFTING MOTOR HARNESS

1.

Disconnect rear lifting motor connector.

2.

Check continuity between front power seat passenger side
switch connector B342 terminals 4, 6 and rear lifting motor con-
nector B347 terminals 4, 6.

3.

Check continuity between front power seat passenger side
switch connector B342 terminals 4, 6 and ground.

OK or NG

OK

>> Replace rear lifting motor.

NG

>> Repair or replace harness between front power seat passenger side switch and rear lifting motor.

Check Rear Power Seat Control Unit Power Supply and Ground Circuit

NIS0013U

WITH HEATED SEAT

1. 

CHECK REAR POWER SEAT CONTROL UNIT POWER SUPPLY CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect rear power seat control unit connector.

3.

Check voltage between rear power seat control unit connector
B162 (LH), B362 (RH) terminal 2 and ground.

OK or NG

OK

>> GO TO 2.

NG

>> Repair or replace harness between fuse block (J/B)

No.1 and rear power seat control unit.

Terminal

Condition

Continuity

4

15A

Rear lifting switch up

Yes

16

Rear lifting switch down

Yes

15A, 16

Other than above

No

6

15A

Rear lifting switch down

Yes

16

Rear lifting switch up

Yes

15A, 16

Other than above

No

PIIA3976E

4 (R) 

−

 4 (R)

:Continuity should exist.

6 (Y) 

−

 6 (Y)

:Continuity should exist.

4 (R) 

−

 Ground

:Continuity should not exist.

6 (Y) 

−

 Ground

:Continuity should not exist.

PIIA3977E

2 (G) 

−

 Ground

: Battery voltage.

PIIA3978E

SE-110

POWER SEAT

2. 

CHECK REAR POWER SEAT CONTROL UNIT GROUND CIRCUIT

1.

Check continuity between rear power seat control unit connector
B162 (LH), B362 (RH) terminals 15 and ground.

2.

Check continuity between rear power seat control unit connector
B163 (LH), B363 (RH) terminals 28 and ground.

OK or NG

OK

>> Rear power seat control unit power supply and ground

circuit check is OK.

NG

>> Repair or replace harness between rear power seat con-

trol unit and ground.

WITHOUT HEATED SEAT

1. 

CHECK REAR POWER SEAT CONTROL UNIT POWER SUPPLY CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect rear power seat control unit connector.

3.

Check voltage between rear power seat control unit connector
B168 (LH), B368 (RH) terminal 2 and ground.

OK or NG

OK

>> GO TO 2.

NG

>> Repair or replace harness between fuse block (J/B)

No.1 and rear power seat control unit.

2. 

CHECK REAR POWER SEAT CONTROL UNIT GROUND CIRCUIT

Check continuity between rear power seat control unit connector
B168 (LH), B368 (RH) terminals 15, 28 and ground.

OK or NG

OK

>> Rear power seat control unit power supply and ground

circuit check is OK.

NG

>> Repair or replace harness between rear power seat con-

trol unit and ground.

15 (B) 

−

 Ground

:Continuity should exist.

28 (B) 

−

 Ground

:Continuity should exist.

PIIA3979E

2 (G) 

−

 Ground

: Battery voltage

PIIA3997E

15 (B) 

−

 Ground

:Continuity should exist

28 (G/B) 

−

 Ground

:Continuity should exist

PIIA3998E