Infiniti G35 (V35) Sedan. Manual - part 1136

POWER SEAT POWER SUPPLY CIRCUIT

SE-11

< COMPONENT DIAGNOSIS >

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COMPONENT DIAGNOSIS

POWER SEAT POWER SUPPLY CIRCUIT

Component Function Check

INFOID:0000000000960472

1.

CHECK DOOR LOCK FUNCTION

Check door lock function.
Refer to 

DLK-10, "DOOR LOCK AND UNLOCK SWITCH : System Description"

.

Is the inspection results normal?

YES

>> GO TO 2.

NO

>> Refer to 

DLK-168, "DOOR LOCK AND UNLOCK SWITCH : Symptom Table"

.

2.

CHECK POWER SEAT FUNCTION

Check slide operation with power seat switch.
Is the inspection results normal?

YES

>> Power seat power supply circuit is OK.

NO

>> Refer to 

SE-11, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000000960473

1.

CHECK POWER SUPPLY CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect power seat switch and side support unit connectors.

3.

Check voltage between power seat switch connector and ground.

4.

Check voltage between side support unit connector and ground.

Is the inspection result normal?

YES

>> Check intermittent incident. Refer to 

GI-39, "Intermittent Incident"

.

NO

>> Repair or replace power supply circuit.

Terminals

Voltage

(+)

(-)

 Power seat switch connector

Terminal

B414

1

Ground

Battery voltage

Terminals

Voltage

(+)

(-)

 Side supoort unit connector

Terminal

B420

1

Ground

Battery voltage

SE-12

< COMPONENT DIAGNOSIS >

HEATED SEAT POWER SUPPLY AND GROUND CIRCUIT

HEATED SEAT POWER SUPPLY AND GROUND CIRCUIT

Component Function Check

INFOID:0000000000960474

1.

CHECK HEATED SEAT FUNCTION

1.

Turn ignition switch ON.

2.

Check operation of heated seat with heated seat switch.

Is the inspection result normal?

YES

>> Heated seat power supply and ground circuit are OK.

NO

>> Refer to 

SE-12, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000000960475

1.

CHECK POWER SUPPLY CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect heated seat switch connector.

3.

Check voltage between heated seat switch (driver side) and ground.

4.

Check voltage between heated seat switch (passenger side) and ground.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace power supply circuit.

2.

CHECK GROUND CIRCUIT

1.

Check continuity between heated seat switch (driver side) and ground.

2.

Check continuity between heated seat switch (passenger side) and ground.

Is the inspection result normal?

YES

>> Check intermittent incident. Refer to 

GI-39, "Intermittent Incident"

.

NO

>> Repair or replace power supply circuit.

Terminals

Voltage

(+)

(-)

 Heated seat switch connector

Terminal

M138 (with A/T)

M172 (with M/T)

1

Ground

Battery voltage

Terminals

Voltage

(+)

(-)

 Heated seat switch connector

Terminal

M140 (with A/T)

M173 (with M/T)

1

Ground

Battery voltage

 Heated seat switch connector

Terminal

Ground

Continuity

M138 (with A/T)

M172 (with M/T)

4

Existed

 Heated seat switch connector

Terminal

Ground

Continuity

M140 (with A/T)

M173 (with M/T)

4

Existed

POWER SEAT SWITCH

SE-13

< COMPONENT DIAGNOSIS >

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POWER SEAT SWITCH

Description

INFOID:0000000000960476

With a built-in reclining switch, sliding switch and lifting switch, power seat switch controls the power supplied
to each motor.

Component Function Check

INFOID:0000000000960477

1.

CHECK POWER SEAT SWITCH FUNCTION

Check power seat operation with power seat switch.
Is the inspection results normal?

YES

>> Power seat switch is OK.

NO

>> Refer to 

SE-13, "Diagnosis Procedure"

..

Diagnosis Procedure

INFOID:0000000000960478

1.

CHECK GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect power seat switch connector.

3.

Check continuity between power seat switch (driver side) and ground.

4.

Check continuity between power seat switch (passenger side) and ground.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace ground circuit.

2.

CHECK POWER SEAT SWITCH

Check power seat switch function.
Refer to 

SE-13, "Component Inspection"

.

Is the inspection result normal?

YES

>> Power seat switch is OK.

NO

>> Replace power seat switch.

Component Inspection

INFOID:0000000000960479

NOTE:
Same component inspection procedure for driver seat and passenger seat.

1.

CHECK POWER SEAT SWITCH

1.

Turn ignition switch OFF.

2.

Remove power seat switch.

3.

Detect the malfunctioning switch.

Which switch is malfunctioning?

RECLINING SWITCH>>GO TO 2.
SLIDING SWITCH>>GO TO 3.
LIFTING MOTOR (FRONT)>>GO TO 4.
LIFTING MOTOR (REAR)>>GO TO 5.

2.

CHECK RECLINING SWITCH

Check continuity between power seat switch terminals.

 Power seat switch connector

Terminal

Ground

Continuity

B414

2

Existed

 Power seat switch connector

Terminal

Ground

Continuity

B434

2

Existed

SE-14

< COMPONENT DIAGNOSIS >

POWER SEAT SWITCH

Is the inspection result normal?

YES

>> Power seat switch (reclining switch) is OK.

NO

>> Replace power seat switch. Refer to 

SE-109, "Removal and Installation"

.

3.

CHECK SLIDING SWITCH

Check continuity between power seat switch terminals.

Is the inspection result normal?

YES

>> Power seat switch (sliding switch) is OK.

NO

>> Replace power seat switch. Refer to 

SE-109, "Removal and Installation"

.

4.

CHECK LIFTING SWITCH (FRONT)

Check continuity between power seat switch terminals.

Terminal

Switch condition

Continuity

1

3

Forward

Existed

Neutral

Not existed

Back ward

Not existed

2

Forward

Not existed

Neutral

Not existed

Back ward

Existed

1

4

Forward

Not existed

Neutral

Not existed

Back ward

Existed

2

Forward

Existed

Neutral

Not existed

Back ward

Not existed

Terminal

Switch condition

Continuity

1

5

Forward

Existed

Neutral

Not existed

Back ward

Not existed

2

Forward

Not existed

Neutral

Not existed

Back ward

Existed

1

6

Forward

Not existed

Neutral

Not existed

Back ward

Existed

2

Forward

Existed

Neutral

Not existed

Back ward

Not existed

Terminal

Switch condition

Continuity

1

9

Up

Existed

Neutral

Not existed

Down

Not existed

2

Up

Not existed

Neutral

Not existed

Down

Existed