Infiniti Q45. Manual - part 848

 

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Infiniti Q45. Manual - part 848

 

 

HEATED SEAT

SE-147

C

D

E

F

G

H

J

K

L

M

A

B

SE

Check Rear Heated Seat Circuit 2

NIS0014Q

1. 

CHECK REAR SEATBACK HEATER POWER SUPPLY

1.

Turn ignition switch ON.

2.

Check voltage between rear power seat control unit connector
and ground.

OK or NG

OK

>> GO TO 3.

NG

>> GO TO 2.

2. 

CHECK REAR SEATBACK HEATER HARNESS

1.

Turn ignition switch OFF.

2.

Disconnect rear power seat control unit connector.

3.

Check continuity between rear power seat control unit connector
B162 (LH), B362 (RH) terminal 8 and ground.

OK or NG

OK

>> Replace rear power seat control unit.

NG

>> Repair or replace harness between rear seat control unit

and seatback heater.

3. 

CHECK REAR SEATBACK HEATER HARNESS

1.

Turn ignition switch OFF.

2.

Disconnect rear power seat control unit connector and rear seat-
back heater connector.

3.

Check continuity between rear power seat control unit connector
B162 (LH), B362 (RH) terminal 8 and rear seatback heater con-
nector B165 (LH), B365 (RH) terminal 8.

OK or NG

OK

>> GO TO 4.

NG

>> Repair or replace harness between rear power seat con-

trol unit and rear seatback heater.

Connector

Terminal

(Wire color)

Condition

Voltage (V) 

(Approx.)

(+)

(–)

B162 (LH)

B362 (RH)

8 (OR)

Ground

Turn ignition switch ON
Heater switch LOW

 Battery voltage

Heater switch OFF

0

PIIA4101E

8 (OR) 

 Ground

:Continuity should not exist

PIIA4102E

8 (OR) 

 8 (OR)

:Continuity should exist

PIIA4120E

SE-148

HEATED SEAT

4. 

CHECK REAR SEATBACK HEATER

Check continuity between rear seatback heater B165 (LH), B365
(RH) terminal A and 8.

OK or NG

OK

>> Check the condition of the harness and connector.

NG

>> Replace rear seatback heater.

Check Rear Heated Seat Circuit 3

NIS0014R

1. 

CHECK REAR SEATBACK HEATER POWER SUPPLY

1.

Turn ignition switch ON.

2.

Check voltage between rear power seat control unit connector
and ground.

OK or NG

OK

>> GO TO 3.

NG

>> GO TO 2.

2. 

CHECK REAR SEATBACK HEATER HARNESS

1.

Turn ignition switch OFF.

2.

Disconnect rear power seat control unit connector and rear seat-
back heater connector.

3.

Check continuity between rear power seat control unit connector
B162 (LH), B362 (RH) terminal 5 and ground.

OK or NG

OK

>> Replace rear power seat control unit.

NG

>> Repair or replace harness between rear power seat con-

trol unit and rear seatback heater.

A (Y/B) 

 8 (OR)

: Continuity should exist

PIIA4117E

Connector

Terminal

(Wire color)

Condition

Voltage (V) 

(Approx.)

(+)

(–)

B162 (LH)

B362 (RH)

5 (BR)

Ground

Turn ignition switch ON
Heater switch HIGH

 Battery voltage

Heater switch OFF

0

PIIA4114E

5 (BR) 

 Ground

:Continuity should not exist

PIIA4115E

HEATED SEAT

SE-149

C

D

E

F

G

H

J

K

L

M

A

B

SE

3. 

CHECK REAR SEATBACK HEATER HARNESS

1.

Turn ignition switch OFF.

2.

Disconnect rear power seat control unit connector and rear seat-
back heater connector.

3.

Check continuity between rear power seat control unit connector
B162 (LH), B362 (RH) terminal 5 and rear seatback heater con-
nector B165 (LH), B365 (RH) terminal 5.

OK or NG

OK

>> GO TO 4.

NG

>> Repair or replace harness between rear power seat con-

trol unit and rear seatback heater.

4. 

CHECK REAR SEATBACK HEATER

Check continuity between rear seatback heater B165 (LH), B365
(RH) terminal A and 5.

OK or NG

OK

>> Check the condition of the harness and connector.

NG

>> Replace rear seatback heater.

Check Rear Heated Seat Switch Low Circuit

NIS0014S

1. 

CHECK REAR HEATER SWITCH POWER SUPPLY

1.

Turn ignition switch ON.

2.

Check voltage between rear power seat control unit connector
and ground.

OK or NG

OK

>> Replace rear power seat control unit.

NG

>> When turn ignition switch ON and heater switch LOW, check the following.

When voltage is approx. 0V, GO TO 2.

When voltage is approx. 5V, GO TO 3.

5 (BR) 

 5 (BR)

:Continuity should exist

PIIA4116E

A (Y/B) 

 5 (BR)

: Continuity should exist

PIIA4118E

Connector

Terminal

(Wire color)

Condition

Voltage (V) 

(Approx.)

(+)

(–)

B163 (LH)

B363 (RH)

32 (LG/W)

Ground

Turn ignition switch ON
Heater switch LOW

0

Heater switch OFF

5

PIIA4043E

SE-150

HEATED SEAT

2. 

CHECK REAR POWER SEAT SWITCH (HEATER SWITCH) HEATER HARNESS

1.

Turn ignition switch OFF.

2.

Disconnect rear power seat control unit connector and rear
power seat switch (heater switch) connector.

3.

Check continuity between rear power seat control unit connector
B163 (LH), B363 (RH) terminal 32 and ground.

OK or NG

OK

>> Replace rear power seat control unit.

NG

>> Repair or replace harness between rear power seat con-

trol unit and rear power seat switch (heater switch).

3. 

CHECK REAR POWER SEAT SWITCH (HEATER SWITCH) HEATER HARNESS

1.

Turn ignition switch OFF.

2.

Disconnect rear power seat control unit connector and rear
power seat switch (heater switch) connector.

3.

Check continuity between rear power seat control unit connector
B163 (LH), B363 (RH) terminal 32 and rear power seat switch
(heater switch) connector D55 (LH), D75 (RH) terminal 5 (LH), 6
(RH).

OK or NG

OK

>> GO TO 4.

NG

>> Repair or replace harness between rear power seat control unit and rear power seat switch

(heater switch).

4. 

CHECK REAR POWER SEAT SWITCH (HEATER SWITCH)

Check continuity between rear power seat switch (heater switch).

OK or NG

OK

>> Check the condition of the harness and connector.

NG

>> Replace rear power seat switch (heater switch).

32 (LG/W) 

 Ground

:Continuity should not exist

PIIA4044E

Rear seat LH

32 (LG/W) 

 5 (L/W)

:Continuity should exist

Rear seat RH

32 (LG/W) 

 6 (Y/R)

:Continuity should exist

PIIA4045E

Terminal

Condition

Continuity

5 (LH)

6 (RH)

2

Rear heater switch LOW

Yes

Other than above

No

PIIA4046E

 

 

 

 

 

 

 

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