Infiniti Q45. Manual — part 855
CLIMATE CONTROLLED SEAT
SE-175
C
D
E
F
G
H
J
K
L
M
A
B
SE
Check Seat Cushion Thermal Electric Device Circuit
NIS0015B
1.
CHECK SEAT CUSHION THERMAL ELECTRIC DEVICE HARNESS
1.
Turn ignition switch OFF.
2.
Disconnect climate controlled seat control unit connector and seat cushion thermal electric device con-
nector.
3.
Check continuity between climate controlled seat control unit
connector B159 (driver side), B359 (passenger side) terminal
J1, J2 and climate controlled seat temperature dial connector
B154 (driver side), B354 (passenger side) terminal J1, J2.
4.
Check continuity between climate controlled seat control unit
connector B159 (driver side), B359 (passenger side) terminal
J1, J2 and ground.
OK or NG
OK
>> GO TO 2.
NG
>> Repair or replace harness.
2.
CHECK SEAT CUSHION THERMAL ELECTRIC DEVICE POWER SUPPLY CIRCUIT
1.
Connect climate controlled seat control unit connector.
2.
Check voltage between climate controlled seat control unit con-
nector and ground.
OK or NG
OK
>> Seat cushion Thelma electric device circuit check is OK.
NG
>> Replace seat cushion thermal electric device.
J1 (Y/G)
−
J1 (Y/G)
: Continuity should exist
J2 (W/L)
−
J2 (W/L)
: Continuity should exist
J1 (Y/G)
−
Ground
: Continuity should not exist
J2 (W/L)
−
Ground
: Continuity should not exist
PIIA3339E
Connector
Terminal
(Wire color)
Condition
Voltage (V)
(Approx)
(+)
(–)
B159
(Driver side)
B359
(Passenger side)
J1 (Y/G)
Ground
Turn ignition switch ON,
climate controlled seat
switch turn “HEAT”
0 – Battery
voltage
Turn ignition switch OFF
0
J2 (WL)
Turn ignition switch ON,
climate controlled seat
switch turn “COOL”
0 – Battery
voltage
Turn ignition switch OFF
0
PIIB2126E
SE-176
CLIMATE CONTROLLED SEAT
Check Seat Cushion Thermal Electric Device Sensor Circuit
NIS0015C
1.
CHECK SEAT CUSHION THERMAL ELECTRIC DEVICE HARNESS
1.
Turn ignition switch OFF.
2.
Disconnect climate controlled seat control unit connector and seat cushion thermal electric device con-
nector.
3.
Check continuity between climate controlled seat control unit
connector B159 (driver side), B359 (passenger side) terminal
J17, J18 and climate controlled seat temperature dial connector
B154 (driver side), B354 (passenger side) terminal J17, J18.
4.
Check continuity between climate controlled seat control unit
connector B159 (driver side), B359 (passenger side) terminal
J17, J18 and ground.
OK or NG
OK
>> GO TO 2.
NG
>> Repair or replace harness.
2.
CHECK SEAT CUSHION THERMAL ELECTRIC DEVICE SENSOR
1.
Connect climate controlled seat control unit connector and seat cushion thermal electric device connector.
2.
Turn ignition switch ON.
3.
Check voltage between seat cushion thermal electric device
connector B154 (driver side), B354 (passenger side) terminal
J18 and body ground.
OK or NG
OK
>> Seat cushion thermal electric device sensor circuit
inspection is OK.
NG
>> Replace seat cushion thermal electric device.
J17 (B/R)
−
J17 (B/R)
: Continuity should exist
J18 (G/R)
−
J18 (G/R)
: Continuity should exist
J17 (B/R)
−
Ground
: Continuity should not exist
J18 (G/R)
−
Ground
: Continuity should not exist
PIIA3337E
J18 (G/R)
−
Ground
: 0.5V
−
4V (Approx.)
PIIA3336E
CLIMATE CONTROLLED SEAT
SE-177
C
D
E
F
G
H
J
K
L
M
A
B
SE
Check Seatback Thermal Electric Device Circuit
NIS0015D
1.
CHECK SEATBACK THERMAL ELECTRIC DEVICE HARNESS
1.
Turn ignition switch OFF.
2.
Disconnect climate controlled seat control unit connector and seatback thermal electric device connector.
3.
Check continuity between climate controlled seat control unit
connector B159 (driver side), B359 (passenger side) terminal
J11, J12 and seatback thermal electric device connector B153
(driver side), B353 (passenger side) terminal J11, J12.
4.
Check continuity between climate controlled seat control unit
connector B159 (driver side), B359 (passenger side) terminal
J11, J12 and ground.
OK or NG
OK
>> GO TO 2.
NG
>> Repair or replace harness.
2.
CHECK SEATBACK THERMAL ELECTRIC DEVICE POWER SUPPLY CIRCUIT
1.
Connect climate controlled seat control unit connector and seat-
back thermal electric device connector.
2.
Check voltage between climate controlled seat control unit con-
nector and ground.
OK or NG
OK
>> Seatback thermal electric device circuit check is OK.
NG
>> Replace seat cushion thermal electric device.
J11 (B/R)
−
J11 (B/R)
: Continuity should exist
J12 (PU/W)
−
J12 (PU/W)
: Continuity should exist
J11 (B/R)
−
Ground
: Continuity should not exist
J12 (PU/W)
−
Ground
: Continuity should not exist
PIIA3343E
Connector
Terminal
(Wire color)
Condition
Voltage (V)
(Approx)
(+)
(–)
B159
(Driver side)
B359
(Passenger side)
J11 (B/R)
Ground
Turn ignition switch ON,
climate controlled seat
switch turn “HEAT
0 – Battery
voltage
Turn ignition switch OFF
0
J12
(PU/W)
Turn ignition switch ON,
climate controlled seat
switch turn “COOL”
0 – Battery
voltage
Turn ignition switch OFF
0
PIIB2127E
SE-178
CLIMATE CONTROLLED SEAT
Check Seatback Thermal Electric Device Sensor Circuit
NIS0015E
1.
CHECK SEATBACK THERMAL ELECTRIC DEVICE HARNESS
1.
Turn ignition switch OFF.
2.
Disconnect climate controlled seat control unit connector and seatback thermal electric device connector.
3.
Check continuity between climate controlled seat control unit
connector B159 (driver side), B359 (passenger side) terminal
J19, J20 and seatback thermal electric device connector B153
(driver side), B353 (passenger side) terminal J19, J20.
4.
Check continuity between climate controlled seat control unit
connector B159 (driver side), B359 (passenger side) terminal
J19, J20 and ground.
OK or NG
OK
>> GO TO 2.
NG
>> Repair or replace harness.
2.
CHECK SEAT CUSHION THERMAL ELECTRIC DEVICE SENSOR
1.
Connect climate controlled seat control unit connector and seatback thermal electric device connector.
2.
Turn ignition switch ON.
3.
Check voltage between seat cushion thermal electric device
connector B153 (driver side), B353 (passenger side) terminal
J19 and ground.
OK or NG
OK
>> Seatback thermal electric device sensor circuit inspec-
tion is OK.
NG
>> Replace seatback thermal electric device.
Check Blower Motor Power Supply Circuit
NIS0015F
1.
CHECK BLOWER MOTOR HARNESS
1.
Turn ignition switch OFF.
2.
Disconnect climate controlled seat control unit and blower motor connector.
3.
Check continuity between climate controlled seat control unit
connector B159 (driver side), B359 (passenger side) terminal
J10 and blower motor connector B155 (driver side), B355 (pas-
senger side) terminal J10.
4.
Check continuity between climate controlled seat control unit
connector B159 (driver side), B359 (passenger side) terminal
J10 and ground.
OK or NG
OK
>> GO TO 2.
NG
>> Repair or replace harness.
J19 (L/OR)
−
J19 (L/OR)
: Continuity should exist
J20 (R/L)
−
J20 (R/L)
: Continuity should exist
J19 (L/OR)
−
Ground
: Continuity should not exist
J20 (R/L)
−
Ground
: Continuity should not exist
PIIA3341E
J19 (L/OR)
−
Ground
: 0.5V
−
4V (Approx)
PIIA3340E
J10 (PU)
−
J10 (PU)
: Continuity should exist
J10 (PU)
−
Ground
: Continuity should not exist
PIIA3326E
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