Nissan Pathfinder. Manual - part 1013

SE-50

< DTC/CIRCUIT DIAGNOSIS >

POWER SUPPLY AND GROUND CIRCUIT

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace harness or connector.

4.

CHECK CLIMATE CONTROLLED SEAT RELAY POWER SUPPLY CIRCUIT

1. Turn ignition switch ON.

2. Check voltage between climate controlled seat relay harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Repair or replace harness or connector.

5.

CHECK CLIMATE CONTROLLED SEAT RELAY GROUND CIRCUIT

1. Turn ignition switch OFF.

2. Check continuity between climate controlled seat relay harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Repair or replace harness.

6.

CHECK CLIMATE CONTROLLED SEAT RELAY

Check climate controlled seat relay.

Refer to 

SE-52, "CLIMATE CONTROLLED SEAT CONTROL UNIT : Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 8.

NO

>> Replace climate controlled seat relay.

7.

CHECK CLIMATE CONTROLLED SEAT CONTROL UNIT (DRIVER SIDE) GROUND CIRCUIT

1. Turn ignition switch OFF.

2. Check continuity between climate control unit (driver side) harness connector and ground.

Is the inspection result normal?

YES

>> Check intermittent incident. Refer to 

GI-49, "Intermittent Incident"

.

NO

>> Repair or replace harness or connector.

PASSENGER SIDE

1.

CHECK FUSE

Check if any of the following fuses are blown.

(+)

(

−)

Voltage (V)

(Approx.)

Climate controlled seat relay

Connector

Terminal

M58

2

Ground

Battery voltage

7

Climate controlled seat relay

Ground

Continuity

Connector

Terminal

M58

1

Yes

Climate controlled seat control unit (driver side)

Ground

Continuity

Connector

Terminal

B205

30

Yes

Signal name

Fuse No.

Battery power supply

66 (15A)

IGN power supply

29 (5A)

POWER SUPPLY AND GROUND CIRCUIT

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< DTC/CIRCUIT DIAGNOSIS >

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Is the fuse blown?

YES

>> Replace the blown fuse after repairing the affected circuit.

NO

>> GO TO 2.

2.

CHECK CLIMATE CONTROLLED SEAT CONTROL UNIT (PASSENGER SIDE) POWER SUPPLY 

1. Turn ignition switch OFF.

2. Disconnect climate controlled seat control unit (passenger side) connector.

3. Turn ignition switch ON.

4. Check voltage between climate controlled seat control unit (passenger side) harness connector and

ground.

Is the inspection result normal?

YES

>> GO TO 7.

NO

>> GO TO 3.

3.

CHECK CLIMATE CONTROLLED SEAT CONTROL UNIT (PASSENGER SIDE) POWER SUPPLY CIR-

CUIT

1. Turn ignition switch OFF.

2. Disconnect climate controlled seat relay.

3. Check continuity between climate controlled seat control unit (passenger side) harness connector and cli-

mate controlled seat relay harness connector.

4. Check continuity between climate controlled seat control unit (passenger side) harness connector and

ground.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace harness or connector.

4.

CHECK CLIMATE CONTROLLED SEAT RELAY POWER SUPPLY CIRCUIT 

1. Turn ignition switch ON.

2. Check voltage between climate controlled seat relay harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 5.

(+)

(

−)

Voltage (V)

(Approx.)

Climate controlled seat control unit (passenger side)

Connector

Terminal

B304

21

Ground

Battery voltage

B305

29

Climate controlled seat control unit (passenger side)

Climate controlled seat relay

Continuity

Connector

Terminal

Connector

Terminal

B304

21

M58

3

Yes

B305

29

Climate controlled seat control unit (passenger side)

Ground

Continuity

Connector

Terminal

B304

21

No

B305

29

(+)

(

−)

Voltage (V)

(Approx.)

Climate controlled seat relay

Connector

Terminal

M58

2

Ground

Battery voltage

5

SE-52

< DTC/CIRCUIT DIAGNOSIS >

POWER SUPPLY AND GROUND CIRCUIT

NO

>> Repair or replace harness or connector.

5.

CHECK CLIMATE CONTROLLED SEAT RELAY GROUND CIRCUIT

1. Turn ignition switch OFF.

2. Check continuity between climate controlled seat relay harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Repair or replace harness.

6.

CHECK CLIMATE CONTROLLED SEAT RELAY

Check climate controlled seat relay.

Refer to 

SE-52, "CLIMATE CONTROLLED SEAT CONTROL UNIT : Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 8.

NO

>> Replace climate controlled seat relay.

7.

CHECK CLIMATE CONTROLLED SEAT CONTROL UNIT (PASSENGER SIDE) GROUND CIRCUIT

1. Turn ignition switch OFF.

2. Check continuity between harness connector and ground.

Is the inspection result normal?

YES

>> Check intermittent incident. Refer to 

GI-49, "Intermittent Incident"

.

NO

>> Repair harness or connector.

CLIMATE CONTROLLED SEAT CONTROL UNIT : Component Inspection

INFOID:0000000009176472

1.

CHECK CLIMATE CONTROLLED SEAT RELAY

1. Turn ignition switch OFF.

2. Remove climate controlled seat relay.

3. Check the continuity between climate controlled seat relay ter-

minals under the following conditions.

Is the inspection result normal?

YES

>> Inspection End.

NO

>> Replace climate controlled seat relay.

Climate controlled seat relay

Ground

Continuity

Connector

Terminal

M58

1

Yes

Climate controlled seat control unit (passenger side)

Ground

Continuity

Connector

Terminal

B305

30

Yes

Terminal

Condition

Continuity

3

5

12 V direct current supply between ter-
minals 1 and 2.

Yes

No current supply

No

6

7

12 V direct current supply between ter-
minals 1 and 2.

Yes

No current supply

No

JMJIA2104ZZ

CLIMATE CONTROLLED SEAT SWITCH

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CLIMATE CONTROLLED SEAT SWITCH

Component Function Check

INFOID:0000000009176473

1.

CHECK CLIMATE CONTROLLED SEAT SWITCH FUNCTION

Check that climate controlled seat activates when operating climate controlled seat control switch.
Is the inspection result normal?

YES

>> Climate controlled seat switch is OK.

NO

>> Refer to 

SE-53, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000009176474

Regarding Wiring Diagram information, refer to 

SE-37, "Wiring Diagram"

.

1.

CHECK CLIMATE CONTROLLED SEAT CONTROL UNIT INPUT SIGNAL

1. Turn ignition switch ON.

2. Check voltage between climate controlled seat control unit harness connector and ground.

Is the inspection result normal?

YES

>> Inspection End.

NO-1 >> HEAT or COOL mode is NG. GO TO 2.

NO-2 >> HEAT and COOL mode are NG. GO TO 3.

2.

CHECK CLIMATE CONTROLLED SEAT SWITCH 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. 

(+)

(–)

Condition

Voltage (V)

(Approx.)

Climate controlled seat control unit

Connector

Terminal

Driver side

B204

20

Ground

Climate controlled seat 
switch (driver side)

COOL

HI

2.6 - 4.2

MID 1.6 

- 

2.5

LO 0.8 

- 

1.5

OFF

0

19

HEAT

HI

2.6 - 4.2

MID 1.6 

- 

2.5

LO 0.8 

- 

1.5

OFF

0

Passenger side

B304

20

Climate controlled seat 
switch (passenger seat)

COOL

HI

2.6 - 4.2

MID 1.6 

- 

2.5

LO 0.8 

- 

1.5

OFF

0

19

HEAT

HI

2.6 - 4.2

MID 1.6 

- 

2.5

LO 0.8 

- 

1.5

OFF

0