Infiniti QX56 (Z62). Manual - part 1138

SE-90

< DTC/CIRCUIT DIAGNOSIS >

CLIMATE CONTROLLED SEAT SWITCH INDICATOR

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.

3.

CHECK CLIMATE CONTROLLED SEAT SWITCH GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect climate controlled seat switch connector.

3.

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

Is the inspection result normal?

YES

>> Replace climate controlled seat switch. Refer to 

SE-147, "Removal and Installation"

.

NO

>> Repair or replace harness.

Climate controlled seat switch

Ground

Continuity 

Connector

Terminal

Driver side

M38

4

Not existed

5

Passenger side

M39

4

5

Climate controlled seat switch

Ground

Continuity 

Connector

Terminal

Driver side

M38

6

Existed

Passenger side

M39

CLIMATE CONTROLLED SEAT BLOWER FILTER

SE-91

< DTC/CIRCUIT DIAGNOSIS >

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CLIMATE CONTROLLED SEAT BLOWER FILTER

SEATBACK BLOWER MOTOR

SEATBACK BLOWER MOTOR : Diagnosis Procedure

INFOID:0000000006217410

1.

CHECK CLIMATE CONTROLLED SEATBACK BLOWER FILTER

Remove climate controlled seatback blower filter and check that there is no clogging by dirt or foreign matters.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace climate controlled seatback blower filter. Refer to 

SE-148, "SEATBACK : Removal and

Installation"

.

SEAT CUSHION BLOWER MOTOR

SEAT CUSHION BLOWER MOTOR : Diagnosis Procedure

INFOID:0000000006217411

1.

CHECK CLIMATE CONTROLLED SEAT CUSHION BLOWER FILTER

Remove climate controlled seat cushion blower filter and check that there is no clogging by dirt or foreign mat-
ters.
Is the inspection result normal?

YES

>> INSPECTION END

NO

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

SE-148, "SEAT CUSHION :

Removal and Installation"

.

SE-92

< SYMPTOM DIAGNOSIS >

CLIMATE CONTROLLED SEAT DOES NOT OPERATE.

SYMPTOM DIAGNOSIS

CLIMATE CONTROLLED SEAT DOES NOT OPERATE.

Diagnosis Procedure

INFOID:0000000006217412

Both sides

1.

CHECK CLIMATE CONTROLLED SEAT CONTROL UNIT POWER SUPPLY AND GROUND CIRCUIT

Check climate controlled seat control unit power supply and ground circuit.
Refer to 

SE-67, "CLIMATE CONTROLLED SEAT CONTROL UNIT : Diagnosis Procedure"

.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace the malfunctioning parts.

2.

CHECK CLIMATE CONTROLLED SEAT SWITCH

Check climate controlled seat switch.
Refer to 

SE-72, "Component Function Check"

.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace the malfunctioning parts.

3.

CHECK CLIMATE CONTROLLED SEATBACK BLOWER MOTOR

Check climate controlled seatback blower motor ground circuit.
Refer to 

SE-83, "Component Function Check"

.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace the malfunctioning parts.

4.

REPLACE CLIMATE CONTROLLED SEAT CONTROL UNIT

Replace climate controlled seat control unit.
Refer to 

SE-117, "CLIMATE CONTROLLED SEAT UNIT : Disassembly and Assembly"

.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> GO TO 5.

5.

CONFIRM THE OPERATION

Confirm the operation again.

Is the inspection result normal?

YES

>> Check intermittent incident. Refer to 

GI-40, "Intermittent Incident"

.

NO

>> GO TO 1.

seatback

1.

CHECK CLIMATE CONTROLLED SEATBACK BLOWER MOTOR

Check climate controlled seatback blower motor.
Refer to 

SE-83, "Component Function Check"

.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace the malfunctioning parts.

2.

CONFIRM THE OPERATION

Confirm the operation again.

Is the inspection result normal?

YES

>> Check intermittent incident. Refer to 

GI-40, "Intermittent Incident"

.

NO

>> GO TO 1.

CLIMATE CONTROLLED SEAT DOES NOT OPERATE.

SE-93

< SYMPTOM DIAGNOSIS >

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seat cushion

1.

CHECK CLIMATE CONTROLLED SEAT CUSHION BLOWER MOTOR

Check climate controlled seat cushion blower motor.
Refer to 

SE-86, "Component Function Check"

.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace the malfunctioning parts.

2.

CONFIRM THE OPERATION

Confirm the operation again.

Is the inspection result normal?

YES

>> Check intermittent incident. Refer to 

GI-40, "Intermittent Incident"

.

NO

>> GO TO 1.