Infiniti Q45. Manual - part 854

CLIMATE CONTROLLED SEAT

SE-171

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SE

2. 

 CHECK CLIMATE CONTROLLED SEAT HEAT SWITCH POWER SUPPLY CIRCUIT

1.

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

2.

Turn ignition switch ON.

3.

Turn climate controlled seat switch “HEAT”.

4.

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

OK or NG

OK

>> Replace climate controlled seat control unit. 

NG

>> GO TO 3.

3. 

 CHECK CLIMATE CONTROLLED SEAT HEAT SWITCH

1.

Turn ignition switch OFF.

2.

Disconnect climate controlled seat switch connector.

3.

Check continuity between climate controlled seat switch as fol-
lows.

OK or NG

OK

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

NG

>> Replace climate controlled seat switch. 

Check Climate Controlled Seat “COOL” Switch Circuit 

NIS00157

1. 

 CHECK CLIMATE CONTROLLED SEAT COOL SWITCH HARNESS CIRCUIT

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 B159 (driver side), B359 (passenger side) terminal
J16 and climate controlled seat switch connector B156 (driver
side), B356 (passenger side) terminal J16.

4.

Check continuity between climate controlled seat control unit
connector B159 (driver side), B359 (passenger side) terminal
J16 and ground.

OK or NG

OK

>> GO TO 2.

NG

>> Repair or replace harness.

Connector

Terminal

(Wire color)

Condition

Voltage (V)

(Approx.)

(+)

(–)

B159

 (Driver side)

B359 

(Passenger side)

J6 (PU)

Ground

Turn climate controlled 
seat switch “HEAT”

0

Climate controlled seat 
switch “OFF”

 Battery voltage

PIIA3330E

Terminal

Condition

Continuity

J6

JCA

Climate controlled seat switch HEAT position

Yes

Climate controlled seat switch OFF

No

PIIA4127E

J16 (R) 

−

 J16 (R)

:Continuity should exist.

J16 (R) 

−

 Ground

:Continuity should not exist.

PIIA3329E

SE-172

CLIMATE CONTROLLED SEAT

2. 

 CHECK CLIMATE CONTROLLED SEAT COOL SWITCH POWER SUPPLY CIRCUIT

1.

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

2.

Turn ignition switch ON.

3.

Turn climate controlled seat switch COOL.

4.

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

OK or NG

OK

>> Replace climate controlled seat control unit. 

NG

>> GO TO 3.

3. 

 CHECK CLIMATE CONTROLLED SEAT COOL SWITCH 

1.

Turn ignition switch OFF.

2.

Disconnect climate controlled seat switch connector.

3.

Check continuity between climate controlled seat switch as fol-
lows.

OK or NG

OK

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

NG

>> Replace climate controlled seat switch. 

Check Climate Controlled Seat Temperature Dial

NIS00158

1. 

CHECK CLIMATE CONTROLLED SEAT TEMPERATURE DIAL

1.

Turn ignition switch OFF.

2.

Disconnect climate controlled seat temperature dial connector.

3.

Check continuity between climate controlled seat temperature
dial as follows.

OK or NG

OK

>> Climate controlled seat temperature dial check is OK.

NG

>> Replace climate controlled seat temperature dial. 

Connector

Terminal

(Wire color)

Condition

Voltage (V)

(Approx.)

(+)

(–)

B159

 (Driver side)

B359 

(Passenger side)

J16 (R)

Ground

Climate controlled seat 
switch COOL

0

Climate controlled seat 
switch OFF

 Battery voltage

PIIA3328E

Terminal

Condition

Continuity

J16

JCA

Climate controlled seat switch COOL position

Yes

Climate controlled seat switch OFF

No

PIIA4128E

Terminal

Condition

Continuity(

Ω

)

(Approx)

J7

J15

Temperature dial 1st

2370

Temperature dial 2nd

 1100

Temperature dial 3rd

 619

Temperature dial 4th

 237

PIIB0390E

CLIMATE CONTROLLED SEAT

SE-173

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B

SE

Check Climate Controlled Seat Temperature Dial Circuit

NIS00159

1. 

CHECK CLIMATE CONTROLLED SEAT TEMPERATURE DIAL HARNESS

1.

Turn ignition switch OFF.

2.

Disconnect climate controlled seat control unit connector and climate controlled seat temperature dial
connector.

3.

Check continuity between climate controlled seat control unit
connector B159 (driver side), B359 (passenger side) terminal
J7, J15 and climate controlled seat temperature dial connector
B157 (driver side), B357 (passenger side) terminal J7, J15.

4.

Check continuity between climate controlled seat control unit
connector B159 (driver side), B359 (passenger side) terminal
J7, J15 and ground.

OK or NG

OK

>> GO TO 2.

NG

>> Repair or replace harness.

2. 

CHECK CLIMATE CONTROLLED SEAT TEMPERATURE DIAL POWER SUPPLY CIRCUIT

1.

Connect climate controlled seat control unit connector and climate controlled seat temperature dial con-
nector.

2.

Turn ignition switch ON.

3.

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

OK or NG

OK

>> Climate controlled seat temperature dial circuit check is OK.

NG

>> When turn ignition ON and temperature dial adjust, check the following

●

When voltage is approx 12V, GO TO 3

●

When voltage is approx 0V, Replace climate controlled seat control unit.

J7 (L) 

−

 J7 (L)

: Continuity should exist

J15 (Y) 

−

 J15 (Y)

: Continuity should exist

J7 (L) 

−

 Ground

: Continuity should not exist

J15 (Y) 

−

 Ground

: Continuity should not exist

PIIA3333E

Connector

Terminal

(Wire color)

Condition

Voltage 

(V)

(+)

(–)

B159

 (Driver side)

B359

(Passenger side)

J7 (L)

Ground

temperature dial 1 – 4

7.1 – 11.4

Turn ignition switch OFF

0

PIIB2125E

SE-174

CLIMATE CONTROLLED SEAT

3. 

CHECK CLIMATE CONTROLLED SEAT TEMPERATURE DIAL

1.

Turn ignition switch OFF.

2.

Disconnect climate controlled seat temperature dial connector.

3.

Check continuity between climate controlled seat temperature
dial as follows.

OK or NG

OK

>> Replace climate controlled seat control unit.

NG

>> Replace climate controlled seat temperature dial. 

Check Climate Controlled Seat Switch Ground Circuit

NIS0015A

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 as fol-
lows.

OK or NG

OK

>> GO TO 2.

NG

>> Replace climate controlled seat switch. 

2. 

 CHECK CLIMATE CONTROLLED SEAT SWITCH GROUND CIRCUIT

Check continuity between climate controlled seat switch connector
B156 (driver side), B356 (passenger side) terminal JCA and ground.

OK or NG

OK

>> Climate controlled seat control circuit check is OK.

NG

>> Repair or replace harness.

Terminal

Condition

Continuity(

Ω

)

(Approx)

J7

J15

Temperature dial 1st

2370

Temperature dial 2nd

 1100

Temperature dial 3rd

 619

Temperature dial 4th

 237

PIIB0390E

Terminal

Condition

Continuity

J6

JCA

Climate controlled seat switch HEAT position

Yes

Climate controlled seat switch OFF

No

J16

Climate controlled seat switch COOL position

Yes

Climate controlled seat switch OFF

No

PIIA3350E

JCA (B) 

−

 Ground

:Continuity should exist.

PIIA3332E