Infiniti M35/M45 Y50. Manual - part 1083

CLIMATE CONTROLLED SEAT

SE-129

C

D

E

F

G

H

J

K

L

M

A

B

SE

3. 

CHECK CLIMATE CONTROLLED SEAT RELAY POWER SUPPLY CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect climate controlled seat relay.

3.

Check voltage between climate controlled seat relay connector
and ground.

OK or NG

OK

>> GO TO 4.

NG

>> Repair or replace harness between climate controlled seat relay and ground.

4. 

CHECK CLIMATE CONTROLLED SEAT RELAY

Check continuity climate controlled seat relay.

OK or NG

OK

>> GO TO 5.

NG

>> Replace climate controlled seat relay.

Terminal

Voltage (V)

(Approx.) 

(+)

(–)

Climate controlled 

seat relay connector

Terminal 

E16

5 

Ground

Battery voltage

7 

PIIB6070E

Climate controlled 

seat relay connector

Terminal Condition

Continuity 

E16

3

5

12V direct current

 supply between 

 terminals 1and 2

Yes

No current supply

No

6

7

12V direct current

 supply between 

 terminals 1and 2

Yes

No current supply

No

SEC202B

SE-130

CLIMATE CONTROLLED SEAT

5. 

CHECK CLIMATE CONTROLLED SEAT CONTROL UNIT HARNESS CIRCUIT

1.

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

2.

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

OK or NG

OK

>> Check the condition of the harness and connector.

NG

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

relay.

6. 

CHECK CLIMATE CONTROLLED SEAT CONTROL UNIT GROUND CIRCUIT

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

OK or NG

OK

>> Climate controlled seat control unit power supply and ground circuit is OK.

NG

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

A

B

Continuity 

Climate controlled 

seat control unit 

connector

Terminal

Climate controlled 

seat relay 
connector

Terminal

B284

(driver side)

2

E16

6 

Yes

4

B294

(passenger side)

2

3 

4

A

Ground

Continuity 

Climate controlled 

seat control unit

connector

Terminal

B284 (driver side)

B294 (passenger side)

2

No

4

PIIB6071E

Terminal

Continuity 

Climate controlled  

seat control unit  

connector

Terminal

Ground

Yes

B284

(driver side)

B294

(passenger side)

3

PIIB6072E

CLIMATE CONTROLLED SEAT

SE-131

C

D

E

F

G

H

J

K

L

M

A

B

SE

Check Climate Controlled Seat Switch Power Supply Circuit

NIS0027R

1. 

 CHECK CLIMATE CONTROLLED SEAT CONTROL UNIT POWER SUPPLY 

1.

Turn ignition switch ON.

2.

Check voltage between climate controlled seat control unit and
ground.

OK or NG

OK

>> GO TO 2.

NG

>> Replace climate controlled seat control unit. 

2. 

 CHECK CLIMATE CONTROLLED SEAT SWITCH POWER SUPPLY

1.

Turn ignition switch OFF.

2.

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

3.

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

–

Driver side

–

Passenger side

4.

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

OK or NG

OK

>> Climate controlled seat control unit power supply circuit is OK.

NG

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

switch.

Terminal

Voltage (V)

(Approx.)

(+)

(–)

Climate controlled

seat control unit

connector

Terminal

B283

(driver side)

B293

(passenger side)

11

Ground

Battery voltage

PIIB6073E

A

B

Continuity 

Climate controlled 

seat control unit 

connector

Terminal

Climate controlled 

seat switch

connector

Terminal

 B283

11

B430

1 

Yes

A

C

Continuity 

Climate controlled 

seat control unit 

connector

Terminal

Climate controlled 

seat switch 

connector

Terminal

B293

11

B429

1 Yes

A

Ground

Continuity 

Climate controlled

seat control unit

connector

11

B283 (driver side)

B293 (passenger side)

No

PIIB6074E

SE-132

CLIMATE CONTROLLED SEAT

Check Climate Controlled Seat Switch Circuit 

NIS0027S

1. 

 CHECK CLIMATE CONTROLLED SEAT SWITCH

1.

Turn ignition switch OFF.

2.

Disconnect climate controlled seat switch connector.

3.

Check continuity between climate controlled seat switch.

*: Driver side

OK or NG

OK

>> GO TO 2.

NG

>> Replace climate controlled seat switch. 

Climate 

controlled seat 

switch connector

Terminal Condition

Continuity 

B430

(driver side)

B429

(passenger side)

1

3

Climate controlled

seat switch

HEAT

Yes

Other than above.

No

2

Climate controlled  

seat switch

COOL

Yes

Other than above.

No

PIIB6075E