Infiniti M35/M45 Y50. Manual - part 1084

CLIMATE CONTROLLED SEAT

SE-133

C

D

E

F

G

H

J

K

L

M

A

B

SE

2. 

 CHECK CLIMATE CONTROLLED SEAT SWITCH HARNESS CIRCUIT

1.

Disconnect climate controlled seat control unit connector.

2.

Check continuity between climate controlled seat control unit
connector and climate controlled seat switch connector.

–

Driver side

–

Passenger side

3.

Check continuity between climate controlled seat control unit
connector and ground.

OK or NG

OK

>> Replace climate controlled seat control unit.

NG

>> Repair or replace harness between climate controlled seat control unit and climate controlled seat

switch.

A

B

Continuity 

Climate 

controlled seat 

control unit     

connector

Terminal

Climate controlled 

seat switch 

connector

Terminal

B283

10

B430

3 

Yes

20

2

A

C

Continuity 

Climate 

controlled seat 

control unit     

connector

Terminal

Climate controlled 

seat switch 

connector

Terminal

B293

10

B429

3 

Yes

20

2

A

Ground

Continuity 

Climate controlled seat 

control unit connector

Terminal

B283 (driver side) 

B293 (passenger side)

10

No

20

PIIB6076E

SE-134

CLIMATE CONTROLLED SEAT

Check Climate Controlled Seat Switch Indicator Circuit

NIS0027T

1. 

CHECK CLIMATE CONTROLLED SEAT CONTROL UNIT CUIRCUIT 

1.

Turn ignition switch ON.

2.

Check voltage between climate controlled seat switch connector
and ground.

OK or NG

OK

>> GO TO 2.

NG

>> Replace climate controlled seat control unit.

Terminal

Condition

Voltage (V)

(Approx.)

(+)

(–)

Climate 

controlled

 seat control 

unit connector

Terminal 

B283

(driver side) 

B293

(passenger 

side)

8

Ground

Climate 
controlled 
seat switch

HEAT

Battery voltage

Other than above.

0

9

Climate 
controlled 
seat switch

COOL

Battery voltage

Other than above.

0

PIIB6077E

CLIMATE CONTROLLED SEAT

SE-135

C

D

E

F

G

H

J

K

L

M

A

B

SE

2. 

CHECK CLIMATE CONTROLLED SEAT SWITCH HARNESS CURCUIT 

1.

Turn ignition switch OFF.

2.

Disconnect climate controlled seat switch and climate controlled seat control unit connector.

3.

Check continuity between climate controlled seat control unit
connector and climate controlled seat switch.

–

Driver side

–

Passenger side

4.

Check continuity between climate controlled seat control unit
connector and ground.

OK or NG

OK

>>  GO TO 3.

NG

>> Repair or replace harness between climate controlled seat control unit and climate controlled seat

switch.

A

B

Continuity 

Climate

 controlled seat 

control unit

connector

Terminal

Climate controlled 

seat switch

connector

Terminal

B283

8

B430

5 

Yes

9

4 

A

C

Continuity 

Climate

 controlled seat 

control unit

connector

Terminal

Climate controlled 

seat switch

connector

Terminal

B293

8

B429

5 

Yes

9

4 

A

Ground

Continuity 

Climate controlled seat 

control unit connector

Terminal

B283 (driver side) 

B293 (passenger side)

8

No

9

PIIB6078E

SE-136

CLIMATE CONTROLLED SEAT

3. 

CHECK CLIMATE COMTROLLED SEAT SWICH INDICATOR

Check continuity between climate controlled seat switch.

*: Driver side

OK or NG

OK

>> Check the condition of the harness and the connector.

NG

>> Replace climate controlled seat switch.

Check Seat Cushion Thermal Electric Device Circuit 

NIS0027U

1. 

CHECK SEAT CUSHION THERMAL ELECTRIC DEVICE POWER SUPPLY CIRCUIT

1.

Turn ignition switch ON.

2.

Check voltage between climate controlled seat control unit con-
nector and ground.

OK or NG

OK

>> Seat cushion thermal electric device circuit is OK.

NG

>> GO TO 2.

Climate controlled seat switch 

connector

Terminal Continuity 

(+)

(–)

B430 (driver side)

B429 (passenger side)

4

6

No

5

6

4

Yes

5

PIIB6079E

Terminal

Condition

Voltage (V)

(Approx.)

(+)

(–)

Climate 

controlled seat 

control unit 

connector

Terminal 

B283

(driver side)

B293

(passenger 

side)

5

Ground

Climate 
controlled
seat switch

HEAT or 

COOL

0 -  Battery 

voltage

Other than above.

0

6

Climate 
controlled
seat switch

COOL or 

HEAT

0 - Battery volt-

age

Other than above.

0

PIIB6080E