Infiniti QX56 (Z62). Manual - part 1137

 

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Infiniti QX56 (Z62). Manual - part 1137

 

 

SE-86

< DTC/CIRCUIT DIAGNOSIS >

CLIMATE CONTROLLED SEAT CUSHION BLOWER MOTOR

CLIMATE CONTROLLED SEAT CUSHION BLOWER MOTOR

Component Function Check

INFOID:0000000006217406

1.

CHECK CLIMATE CONTROLLED SEAT CUSHION BLOWER MOTOR FUNCTION

When turning the climate controlled seat switch to the HEAT or COOL mode position, check that the climate
controlled seat cushion blower is operated in each specific mode.

Is the inspection result normal?

YES

>> Climate controlled seat cushion blower motor is OK.

NO

>> Refer to 

SE-86, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000006217407

1.

CHECK CLIMATE CONTROLLED SEAT CUSHION BLOWER MOTOR POWER SUPPLY

1.

Turn ignition switch ON.

2.

Check voltage between climate controlled seat cushion blower motor harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> GO TO 2.

2.

CHECK CLIMATE CONTROLLED SEAT CUSHION BLOWER MOTOR POWER SUPPLY CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect climate controlled seat cushion blower motor connector and climate controlled seat control
unit connector.

3.

Check continuity between climate controlled seat cushion blower motor harness connector and climate
controlled seat control unit harness connector. 

4.

Check continuity between climate controlled seat cushion blower motor harness connector and ground.

Is the inspection result normal?

YES

>> Replace climate controlled seat control unit. Refer to 

SE-117, "CLIMATE CONTROLLED SEAT

UNIT : Disassembly and Assembly"

.

NO

>> Repair or replace harness.

(+)

(–)

Condition

Voltage (V)

(Approx.)

Climate controlled seat cushion blower motor

Connector

Terminal

Driver side

B506

71

Ground

Climate controlled seat 
switch

HEAT mode

12

COOL mode

Other than above

0

Passenger side

B516

Climate controlled seat 
switch

HEAT mode

12

COOL mode

Other than above

0

Climate controlled seat cushion blower motor

Climate controlled seat control unit

Continuity 

Connector

Terminal

Connector

Terminal

Driver side

B506

71

B507

71

Existed

Passenger side

B516

B517

Climate controlled seat cushion blower motor

Ground

Continuity 

Connector

Terminal

Driver side

B506

71

Not existed

Passenger side

B516

CLIMATE CONTROLLED SEAT CUSHION BLOWER MOTOR

SE-87

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

H

I

K

L

M

A

B

SE

N

O

P

3.

CHECK CLIMATE CONTROLLED SEAT CUSHION BLOWER MOTOR SPEED CONTROL SIGNAL

Check voltage between climate controlled seat cushion blower motor harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> GO TO 4.

4.

CHECK CLIMATE CONTROLLED SEAT CUSHION BLOWER MOTOR SPEED CONTROL SIGNAL CIR-

CUIT

1.

Turn ignition switch OFF.

2.

Disconnect climate controlled seat cushion blower motor connector and climate controlled seat control
unit connector.

3.

Check continuity between climate controlled seat cushion blower motor harness connector and climate
controlled seat control unit harness connector. 

4.

Check continuity between climate controlled seat cushion blower motor harness connector and ground.

Is the inspection result normal?

YES

>> Replace climate controlled seat control unit. Refer to 

SE-117, "CLIMATE CONTROLLED SEAT

UNIT : Disassembly and Assembly"

.

NO

>> Repair or replace harness.

5.

CHECK CLIMATE CONTROLLED SEAT CUSHION BLOWER MOTOR GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect climate controlled seat cushion blower motor and climate controlled seat control unit connec-
tor.

3.

Check continuity between climate controlled seat cushion blower motor harness connector and climate
controlled seat control unit harness connector. 

(+)

(–)

Condition

Voltage (V)

(Approx.)

Climate controlled seat cushion blower motor

Connector

Terminal

Driver side

B506

72

Ground

Climate controlled seat 
switch

HEAT

5.5 - 8

COOL

HI

9.2

MID

8

LO

6.5

Other than above

0

Passenger side

B516

Climate controlled seat 
switch

HEAT

5.5 - 8

COOL

HI

9.2

MID

8

LO

6.5

Other than above

0

Climate controlled seat cushion blower motor

Climate controlled seat control unit

Continuity 

Connector

Terminal

Connector

Terminal

Driver side

B506

72

B507

72

Existed

Passenger side

B516

B517

Climate controlled seat cushion blower motor

Ground

Continuity 

Connector

Terminal

Driver side

B506

72

Not existed

Passenger side

B516

SE-88

< DTC/CIRCUIT DIAGNOSIS >

CLIMATE CONTROLLED SEAT CUSHION BLOWER MOTOR

4.

Check continuity between climate controlled seat cushion blower motor harness connector and ground.

Is the inspection result normal?

YES

>> Replace climate controlled seat cushion blower motor. Refer to 

SE-117, "CLIMATE CON-

TROLLED SEAT UNIT : Disassembly and Assembly"

.

NO

>> Repair or replace harness.

Climate controlled seat cushion blower motor

Climate controlled seat control unit

Continuity 

Connector

Terminal

Connector

Terminal

Driver side

B506

64

B507

64

Existed

Passenger side

B516

B517

Climate controlled seat cushion blower motor

Ground

Continuity 

Connector

Terminal

Driver side

B506

64

Not existed

Passenger side

B516

CLIMATE CONTROLLED SEAT SWITCH INDICATOR

SE-89

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

H

I

K

L

M

A

B

SE

N

O

P

CLIMATE CONTROLLED SEAT SWITCH INDICATOR

Component Function Check

INFOID:0000000006217408

1.

CHECK CLIMATE CONTROLLED SEAT SWITCH INDICATOR FUNCTION

Check that the related indicator lamp illuminates when climate controlled seat switch is set to HEAT or COOL
mode.

Is the inspection result normal?

YES

>> Climate controlled seat switch indicator function is OK.

NO

>> Refer to 

SE-89, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000006217409

1.

CHECK CLIMATE CONTROLLED SEAT SWITCH INPUT SIGNAL

1.

Turn ignition switch ON.

2.

Check voltage between climate controlled seat switch harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> GO TO 2.

2.

CHECK CLIMATE CONTROLLED SEAT SWITCH INDICATOR CIRCUIT

1.

Turn ignition switch OFF.

2.

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

3.

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

4.

Check continuity between climate controlled seat switch harness connector and ground.

(+)

(–)

Condition

Voltage (V)

(Approx.)

Climate controlled seat switch

Connector

Terminal

Driver side

M38

5

Ground

Climate controlled seat 
switch (driver side)

HEAT mode

12

OFF

0

4

COOL mode

12

OFF

0

Passenger side

M39

5

Climate controlled seat 
switch (passenger side)

HEAT mode

12

OFF

0

4

COOL mode

12

OFF

0

Climate controlled seat switch

Climate controlled seat control unit

Continuity 

Connector

Terminal

Connector

Terminal

Driver side

M38

4

B507

56

Existed

5

57

Passenger side

M39

4

B517

56

5

57

 

 

 

 

 

 

 

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