Infiniti Q45. Manual — part 853

CLIMATE CONTROLLED SEAT

SE-167

C

D

E

F

G

H

J

K

L

M

A

B

SE

4.

CHECK CLIMATE CONTROLLED SEAT CONTROL UNIT GROUND CIRCUIT

Check continuity between climate controlled seat relay connector
B324 terminal 1 and ground.

OK or NG

OK

>> Climate controlled seat relay power supply circuit check

is OK.

NG

>> Repair or replace harness between climate controlled

seat relay and ground.

Check Driver Side Climate Controlled Seat Control Unit Power Supply and
Ground Circuit

NIS00154

1.

CHECK FUSE

Check 15A fuse [No. 71, located in fuse, fusible link and relay unit]

NOTE:
Refer to

SE-153, "Component Parts and Harness Connector Location"

.

OK or NG

OK

>> GO TO 2.

NG

>> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse, refer to

PG-

2, "POWER SUPPLY ROUTING"

.

2.

CHECK CLIMATE CONTROLLED SEAT CONTROL UNIT POWER SUPPLY CIRCUIT 1

1.

Turn ignition switch OFF.

2.

Disconnect climate controlled seat relay.

3.

Check voltage between climate controlled seat relay connector
B324 terminal 5 and ground.

OK or NG

OK

>> GO TO 3.

NG

>> Repair or replace harness.

3.

CHECK CLIMATE CONTROLLED SEAT RELAY

1.

Remove climate controlled seat relay.

2.

Check continuity between terminals 3 and 5.

OK or NG

OK

>> GO TO 4.

NG

>> Replace climate controlled seat relay.

1 (B)

−

Ground

: Continuity should exist

PIIB0388E

5 (R)

−

Ground

: Battery voltage

PIIB0389E

Terminal

Condition

Continuity

3

5

12V direct current supply
between terminals 1 and 2

Yes

No current supply

No

SEC202B

SE-168

CLIMATE CONTROLLED SEAT

4.

CHECK CLIMATE CONTROLLED SEAT CONTROL UNIT POWER SUPPLY CIRCUIT 2

1.

Disconnect climate controlled seat control unit connector.

2.

Turn ignition switch ON.

3.

Check voltage between climate controlled seat control unit con-
nector and ground.

OK or NG

OK

>> GO TO 5.

NG

>> Repair or replace harness.

5.

CHECK CLIMATE CONTROLLED SEAT CONTROL UNIT POWER SUPPLY CIRCUIT

Check voltage between climate controlled seat control unit connec-
tor and ground.

OK or NG

OK

>> GO TO 6.

NG

>> Repair or replace harness.

6.

CHECK CLIMATE CONTROLLED SEAT CONTROL UNIT GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Check continuity between climate controlled seat control unit
connector B158 terminal JC and ground.

OK or NG

OK

>> Driver side climate controlled seat control unit power

supply and ground circuit check is OK.

NG

>> Repair or replace harness.

Check Passenger Side Climate Controlled Seat Control Unit Power Supply and
Ground Circuit

NIS00155

1.

CHECK FUSE

Check 10A fuse [No. 72, located in fuse, fusible link and relay unit]

NOTE:
Refer to

SE-153, "Component Parts and Harness Connector Location"

.

OK or NG

OK

>> GO TO 2.

NG

>> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse, refer to

PG-

2, "POWER SUPPLY ROUTING"

.

Connector

Terminal

(Wire color)

Condition

Voltage (V)

(Approx)

(+)

(–)

B158

JB (W/G)

Ground

Turn ignition switch ON

Battery voltage

Turn ignition switch OFF

0

PIIB2123E

Connector

Terminal

(Wire color)

Condition

Voltage (V)

(Approx)

(+)

(–)

B158

JD (W/R)

Ground

Turn ignition switch ON

Battery voltage

Turn ignition switch OFF

0

PIIB2124E

JC (B)

−

Ground

: Continuity should exist

PIIA3335E

CLIMATE CONTROLLED SEAT

SE-169

C

D

E

F

G

H

J

K

L

M

A

B

SE

2.

CHECK CLIMATE CONTROLLED SEAT CONTROL UNIT POWER SUPPLY CIRCUIT 1

1.

Turn ignition switch OFF.

2.

Check voltage between climate controlled seat relay connector
B324 terminal 7 and ground.

OK or NG

OK

>> GO TO 3.

NG

>> Repair or replace harness.

3.

CHECK CLIMATE CONTROLLED SEAT RELAY

1.

Remove climate controlled seat relay.

2.

Check continuity between terminals 6 and 7.

OK or NG

OK

>> GO TO 4.

NG

>> Replace air conditioning seat relay.

4.

CHECK CLIMATE CONTROLLED SEAT CONTROL UNIT POWER SUPPLY CIRCUIT 2

1.

Disconnect climate controlled seat control unit connector.

2.

Turn ignition switch ON.

3.

Check voltage between climate controlled seat control unit con-
nector and ground.

OK or NG

OK

>> GO TO 5.

NG

>> Repair or replace harness.

7 (B/W)

−

Ground

: Battery voltage

PIIB0386E

Terminal

Condition

Continuity

6

7

12V direct current supply
between terminals 1 and 2

Yes

No current supply

No

SEC202B

Connector

Terminal

(Wire color)

Condition

Voltage (V)

(Approx)

(+)

(–)

B158

JB (W/G)

Ground

Turn ignition switch ON

Battery voltage

Turn ignition switch OFF

0

PIIB2123E

SE-170

CLIMATE CONTROLLED SEAT

5.

CHECK CLIMATE CONTROLLED SEAT CONTROL UNIT POWER SUPPLY CIRCUIT

Check voltage between climate controlled seat control unit connec-
tor and ground.

OK or NG

OK

>> GO TO 6.

NG

>> Repair or replace harness.

6.

CHECK CLIMATE CONTROLLED SEAT CONTROL UNIT GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Check continuity between climate controlled seat control unit
connector B358 terminal JC and ground.

OK or NG

OK

>> Passenger side climate controlled seat unit power sup-

ply circuit and ground check is OK.

NG

>> Repair or replace harness.

Check Climate Controlled Seat “HEAT” Switch Circuit

NIS00156

1.

CHECK CLIMATE CONTROLLED SEAT HEAT SWITCH HARNESS CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect climate controlled seat control unit and climate con-
trolled seat switch connector.

3.

Check continuity between climate controlled seat control unit
connector B159 (driver side), B359 (passenger side) terminal J6
and climate controlled seat switch connector B156 (driver side),
B356 (passenger side) terminal J6.

4.

Check continuity between climate controlled seat control unit
connector B159 (driver side), B359 (passenger side) terminal J6
and ground.

OK or NG

OK

>> GO TO 2.

NG

>> Repair or replace harness.

Connector

Terminal

(Wire color)

Condition

Voltage (V)

(Approx)

(+)

(–)

B158

JD (W/R)

Ground

Turn ignition switch ON

Battery voltage

Turn ignition switch OFF

0

PIIB2124E

JC (B)

−

Ground

:Continuity should exist

PIIA3335E

J6 (PU)

−

J6 (PU)

:Continuity should exist.

J6 (PU)

−

Ground

:Continuity should not exist.

PIIA3331E