Infiniti Q45. Manual — part 856
CLIMATE CONTROLLED SEAT
SE-179
C
D
E
F
G
H
J
K
L
M
A
B
SE
2.
CHECK BLOWER MOTOR POWER SUPPLY CIRCUIT
1.
Connect climate controlled seat control unit connector and
blower motor connector.
2.
Check voltage between climate controlled seat control unit con-
nector and ground.
OK or NG
OK
>> GO TO 3.
NG
>> Replace climate controlled seat control unit.
3.
CHECK BLOWER MOTOR GROUND HARNESS
1.
Turn ignition switch OFF.
2.
Disconnect climate controlled seat control unit connector and blower motor connector.
3.
Check continuity between climate controlled seat control unit
connector B159 (driver side), B359 (passenger side) terminal J
3 and blower motor connector B155 (driver side), B355 (passen-
ger side) terminal J3.
4.
Check continuity between climate controlled seat control unit
connector B159 (driver side), B359 (passenger side) terminal J3
and ground.
OK or NG
OK
>> GO TO 4.
NG
>> Repair or replace harness.
4.
CHECK BLOWER MOTOR GROUND HARNESS
Check continuity between climate controlled seat control unit con-
nector B159 (driver side), B359 (passenger side) terminal J3 and cli-
mate controlled seat control unit connector B158 (driver side), B358
(passenger side) terminal JC.
OK or NG
OK
>> Blower motor circuit check is OK.
NG
>> Replace climate controlled seat control unit.
Connector
Terminal
(Wire color)
Condition
Voltage (V)
(Approx)
(+)
(–)
B159
(Driver side)
B359
(Passenger side)
J10
(PU)
Ground
Turn ignition switch ON
Climate controlled seat
switch “HEAT” or “COOL”
5.5 – Battery
voltage
Turn ignition switch OFF
0
PIIB2128E
J3 (GY)
−
J3 (GY)
: Continuity should exist
J3 (GY)
−
Ground
: Continuity should not exist
PIIA3327E
J3 (GY)
−
JC (B)
:Continuity should exist
PIIB0401E
SE-180
CLIMATE CONTROLLED SEAT
Check Blower Motor Speed Control Circuit
NIS0015G
1.
CHECK BLOWER MOTOR SPEED CONTROL SIGNAL CIRCUIT
Check voltage between climate controlled seat control unit connec-
tor and ground.
OK or NG
OK
>> GO TO 2.
NG
>> Replace climate controlled seat control unit.
2.
CHECK BLOWER MOTOR HARNESS
1.
Turn ignition switch OFF.
2.
Disconnect climate controlled seat control unit connector and blower motor connector.
3.
Check continuity between climate controlled seat control unit
connector B159 (driver side), B359 (passenger side) terminal
J13 and blower motor connector B155 (driver side), B355 (pas-
senger side) terminal J13.
4.
Check continuity between climate controlled seat control unit
connector B159 (driver side), B359 (passenger side) terminal
J13 and ground.
OK or NG
OK
>> Blower motor control circuit check is OK.
NG
>> Repair or replace harness.
Check Blower Motor Tachometer Signal Circuit
NIS0015H
1.
CHECK BLOWER MOTOR TACHOMETER SIGNAL CIRCUIT
1.
Connect climate controlled seat control unit connector and blower motor 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 2.
NG
>> Replace climate controlled seat blower motor.
Connector
Terminal
(Wire color)
Condition
Voltage (V)
(Approx)
(+)
(–)
B159
(Driver side)
B359
(Passenger side)
J13 (R)
Ground
Turn ignition switch ON
Climate controlled seat
switch “HEAT” or “COOL”
4.5 – 9.5
Turn ignition switch OFF
0
PIIB2129E
J13 (R)
−
J13 (R)
: Continuity should exist
J13 (R)
−
Ground
: Continuity should not exist
PIIA3324E
Connector
Terminal
(Wire color)
Condition
Voltage (V)
(Approx)
(+)
(–)
B159
(Driver side)
B359
(Passenger side)
J14 (W)
Ground
Climate controlled seat
switch “HEAT” or “COOL”
temperature dial 1 – 4
5 – 7
Climate controlled seat
switch OFF
0
PIIA3321E
CLIMATE CONTROLLED SEAT
SE-181
C
D
E
F
G
H
J
K
L
M
A
B
SE
2.
CHECK BLOWER MOTOR HARNESS
1.
Turn ignition switch OFF.
2.
Disconnect climate controlled seat control unit connector and blower motor connector.
3.
Check continuity between climate controlled seat control unit
connector B159 (driver side), B359 (passenger side) terminal
J14 and blower motor connector B155 (driver side), B355 (pas-
senger side) terminal J14.
4.
Check continuity between climate controlled seat control unit
connector B159 (driver side), B359 (passenger side) terminal
J14 and ground.
OK or NG
OK
>> Blower motor tachometer signal circuit check is OK.
NG
>> Repair or replace harness.
Check Climate Controlled Seat Control Unit
NIS0015I
1.
CHECK THE CLIMATE CONTROLLED SEAT CONTROL UNIT
Does the heater operate normally when the driver side or passenger side climate controlled seat control unit is
exchanged?
YES or NO
YES
>> Climate controlled seat control unit check is OK.
NO
>> Replace climate controlled seat control unit.
J14 (W)
−
J14 (W)
: Continuity should exist
J14 (W)
−
Ground
: Continuity should not exist
PIIA3322E
SE-182
FRONT SEAT
FRONT SEAT
PFP:87000
Removal and Installation
NIS0015J
DRIVER SIDE POWER SEAT
PIIA0162E
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