Infiniti M35/M45 Y50. Manual - part 1090

HEATED SEAT

SE-157

C

D

E

F

G

H

J

K

L

M

A

B

SE

3. 

CHECK REAR HEATED SEAT SWITCH 

Check continuity rear heated seat switch connector.

OK or NG

OK

>> GO TO 4.

NG

>> Replace rear heated seat switch.

4. 

CHECK REAR HEATED SEAT SWITCH GROUND CIRCUIT

Check continuity between rear heated seat switch connector and
ground.

OK or NG

OK

>> GO TO 5.

NG

>> Replace or replace harness between rear heated seat

switch and ground.

5. 

CHECK  REAR HEATED SEAT SWITCH POWER SUPPLY-2

1.

Connect rear seat control unit.

2.

Turn ignition switch ON.

3.

Check voltage between rear seat control unit connector and
ground.

OK or NG

OK

>> Check the condition of the harness and connector.

NG

>> Replace rear seat control unit.

Rear heated 

seat switch 

connector

Terminal Condition

Continuity 

B507 (LH)

B558 (RH)

1

3

Rear heated 

seat switch 

HIGH

Yes

Other than above.

No

2

Rear heated

 seat switch

LOW

Yes

Other than above.

No

PIIB6003E

Terminal

Continuity 

Rear heated seat

switch connector

Terminal

Ground

B507 (LH)

B558 (RH)

3

Yes

PIIB6004E

Terminals

Voltage (V)

(Approx.)

(+)

(–)

Rear seat control 

unit connector

Terminal

B304 (LH)

B354 (RH)

17

Ground

5

18

PIIB6001E

SE-158

HEATED SEAT

Check Rear Heated Seat Indicator Power Supply Circuit

NIS0028A

1. 

CHECK REAR HEATED SEAT INDICATOR POWER SUPPLY

1.

Turn ignition switch OFF.

2.

Disconnect rear heated seat switch connector.

3.

Check voltage between rear heated seat switch connector and
ground.

OK or NG

OK

>> GO TO 3.

NG

>> GO TO 2.

2. 

CHECK REAR HEATED SEAT INDICATOR HARNESS

1.

Turn ignition switch OFF.

2.

Disconnect IPDM E/R (heated seat relay) connector.

3.

Check continuity between IPDM E/R (heated seat relay) con-
nector and   rear heated seat switch connector. 

4.

Check continuity between rear heated seat switch connector
and ground.

OK or NG

OK

>> Check the condition of the harness and connector.

NG

>> Replace or replace harness between IPDM E/R (heated seat relay) and rear heated seat switch.

Terminal

Condition

Voltage (V)

(Approx.)

(+)

(–)

Rear heated 

seat switch 

connector

Terminal

B507 (LH)

B558 (RH)

6

Ground

Ignition 

switch

ON

Battery voltage

OFF

0

PIIB6005E

A

B

Continuity 

Rear heated seat 

switch connector

Terminal

IPDM E/R

(heated seat  relay) 

connector

Terminal

B507 (LH)

6

E6

12 

Yes

B558 (RH)

E5

9

A

Ground

Continuity 

Rear heated seat 

switch connector

Terminal

B507 (LH)

B558 (RH)

6

No

PIIB6006E

HEATED SEAT

SE-159

C

D

E

F

G

H

J

K

L

M

A

B

SE

3. 

CHECK REAR HEATED SEAT SWITCH 

Check continuity rear heated seat switch connector.

OK or NG

OK

>> Check the condition of the harness and connector.

NG

>> Replace rear heated seat switch.

Check Rear Heated Seat Indicator Circuit

NIS0028B

1. 

CHECK REAR SEAT CONTROL UNIT POWER SUPPLY

1.

Turn ignition switch ON.

2.

Check voltage between rear seat control unit connector and
ground.

OK or NG

OK

>> Replace rear heated seat switch.

NG

>> GO TO 2.

Rear heated seat 

switch connector

Terminal 

Continuity 

(+)

(-)

B507 (LH)

B558 (RH)

4

6

Yes

5

6

4

No

5

PIIB6007E

Terminal

Condition

Voltage (V)

(Approx.)

(+)

(–)

Rear seat 

control unit 

connector

Terminal 

B304 (LH)

B354 (RH)

9

Ground

Rear heated

 seat switch 

HIGH

0

Other than above.

Battery voltage

14

Rear heated

 seat switch 

LOW

0

Other than above.

Battery voltage

PIIB6008E

SE-160

HEATED SEAT

2. 

CHECK REAR HEATED SEAT INDICATOR HARNESS

1.

Turn ignition switch OFF.

2.

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

3.

Check continuity between rear heated seat switch connector
and rear seat control unit connector.

4.

Check continuity between rear heated seat switch connector
and ground.

OK or NG

OK

>> GO TO 3.

NG

>> Replace or replace harness between rear heated seat switch and rear seat control unit.

3. 

CHECK REAR HEATED SEAT SWITCH

Check continuity rear heated seat switch connector.

OK or NG

OK

>> Replace rear seat control unit.

NG

>> Replace rear heated seat switch.

A

B

Continuity 

Rear heated seat 

switch connector

Terminal

Rear seat control 

unit connector

Terminal

B507 (LH)

B558 (RH)

4

B304 (LH)

B354 (RH)

9

Yes

5

14

A

Ground

Continuity 

Rear heated seat 

switch connector

Terminal

B507 (LH)

B558 (RH)

4

No

5

PIIB6009E

Rear heated seat 
 switch connector

Terminal 

Continuity 

(+)

(-)

B507 (LH)

B558 (RH)

4

6

Yes

5

6

4

No

5

PIIB6007E