Infiniti Q45. Manual — part 854
CLIMATE CONTROLLED SEAT
SE-171
C
D
E
F
G
H
J
K
L
M
A
B
SE
2.
CHECK CLIMATE CONTROLLED SEAT HEAT SWITCH POWER SUPPLY CIRCUIT
1.
Connect climate controlled seat control unit connector and climate controlled seat switch.
2.
Turn ignition switch ON.
3.
Turn climate controlled seat switch “HEAT”.
4.
Check voltage between climate controlled seat control unit con-
nector and body ground.
OK or NG
OK
>> Replace climate controlled seat control unit.
NG
>> GO TO 3.
3.
CHECK CLIMATE CONTROLLED SEAT HEAT SWITCH
1.
Turn ignition switch OFF.
2.
Disconnect climate controlled seat switch connector.
3.
Check continuity between climate controlled seat switch as fol-
lows.
OK or NG
OK
>> Check the condition of the harness and the connector.
NG
>> Replace climate controlled seat switch.
Check Climate Controlled Seat “COOL” Switch Circuit
NIS00157
1.
CHECK CLIMATE CONTROLLED SEAT COOL SWITCH HARNESS CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect climate controlled seat control unit and climate controlled seat switch connector.
3.
Check continuity between climate controlled seat control unit
connector B159 (driver side), B359 (passenger side) terminal
J16 and climate controlled seat switch connector B156 (driver
side), B356 (passenger side) terminal J16.
4.
Check continuity between climate controlled seat control unit
connector B159 (driver side), B359 (passenger side) terminal
J16 and ground.
OK or NG
OK
>> GO TO 2.
NG
>> Repair or replace harness.
Connector
Terminal
(Wire color)
Condition
Voltage (V)
(Approx.)
(+)
(–)
B159
(Driver side)
B359
(Passenger side)
J6 (PU)
Ground
Turn climate controlled
seat switch “HEAT”
0
Climate controlled seat
switch “OFF”
Battery voltage
PIIA3330E
Terminal
Condition
Continuity
J6
JCA
Climate controlled seat switch HEAT position
Yes
Climate controlled seat switch OFF
No
PIIA4127E
J16 (R)
−
J16 (R)
:Continuity should exist.
J16 (R)
−
Ground
:Continuity should not exist.
PIIA3329E
SE-172
CLIMATE CONTROLLED SEAT
2.
CHECK CLIMATE CONTROLLED SEAT COOL SWITCH POWER SUPPLY CIRCUIT
1.
Connect climate controlled seat control unit connector and climate controlled seat switch.
2.
Turn ignition switch ON.
3.
Turn climate controlled seat switch COOL.
4.
Check voltage between climate controlled seat control unit con-
nector and body ground.
OK or NG
OK
>> Replace climate controlled seat control unit.
NG
>> GO TO 3.
3.
CHECK CLIMATE CONTROLLED SEAT COOL SWITCH
1.
Turn ignition switch OFF.
2.
Disconnect climate controlled seat switch connector.
3.
Check continuity between climate controlled seat switch as fol-
lows.
OK or NG
OK
>> Check the condition of the harness and the connector.
NG
>> Replace climate controlled seat switch.
Check Climate Controlled Seat Temperature Dial
NIS00158
1.
CHECK CLIMATE CONTROLLED SEAT TEMPERATURE DIAL
1.
Turn ignition switch OFF.
2.
Disconnect climate controlled seat temperature dial connector.
3.
Check continuity between climate controlled seat temperature
dial as follows.
OK or NG
OK
>> Climate controlled seat temperature dial check is OK.
NG
>> Replace climate controlled seat temperature dial.
Connector
Terminal
(Wire color)
Condition
Voltage (V)
(Approx.)
(+)
(–)
B159
(Driver side)
B359
(Passenger side)
J16 (R)
Ground
Climate controlled seat
switch COOL
0
Climate controlled seat
switch OFF
Battery voltage
PIIA3328E
Terminal
Condition
Continuity
J16
JCA
Climate controlled seat switch COOL position
Yes
Climate controlled seat switch OFF
No
PIIA4128E
Terminal
Condition
Continuity(
Ω
)
(Approx)
J7
J15
Temperature dial 1st
2370
Temperature dial 2nd
1100
Temperature dial 3rd
619
Temperature dial 4th
237
PIIB0390E
CLIMATE CONTROLLED SEAT
SE-173
C
D
E
F
G
H
J
K
L
M
A
B
SE
Check Climate Controlled Seat Temperature Dial Circuit
NIS00159
1.
CHECK CLIMATE CONTROLLED SEAT TEMPERATURE DIAL HARNESS
1.
Turn ignition switch OFF.
2.
Disconnect climate controlled seat control unit connector and climate controlled seat temperature dial
connector.
3.
Check continuity between climate controlled seat control unit
connector B159 (driver side), B359 (passenger side) terminal
J7, J15 and climate controlled seat temperature dial connector
B157 (driver side), B357 (passenger side) terminal J7, J15.
4.
Check continuity between climate controlled seat control unit
connector B159 (driver side), B359 (passenger side) terminal
J7, J15 and ground.
OK or NG
OK
>> GO TO 2.
NG
>> Repair or replace harness.
2.
CHECK CLIMATE CONTROLLED SEAT TEMPERATURE DIAL POWER SUPPLY CIRCUIT
1.
Connect climate controlled seat control unit connector and climate controlled seat temperature dial con-
nector.
2.
Turn ignition switch ON.
3.
Check voltage between climate controlled seat control unit con-
nector and ground.
OK or NG
OK
>> Climate controlled seat temperature dial circuit check is OK.
NG
>> When turn ignition ON and temperature dial adjust, check the following
●
When voltage is approx 12V, GO TO 3
●
When voltage is approx 0V, Replace climate controlled seat control unit.
J7 (L)
−
J7 (L)
: Continuity should exist
J15 (Y)
−
J15 (Y)
: Continuity should exist
J7 (L)
−
Ground
: Continuity should not exist
J15 (Y)
−
Ground
: Continuity should not exist
PIIA3333E
Connector
Terminal
(Wire color)
Condition
Voltage
(V)
(+)
(–)
B159
(Driver side)
B359
(Passenger side)
J7 (L)
Ground
temperature dial 1 – 4
7.1 – 11.4
Turn ignition switch OFF
0
PIIB2125E
SE-174
CLIMATE CONTROLLED SEAT
3.
CHECK CLIMATE CONTROLLED SEAT TEMPERATURE DIAL
1.
Turn ignition switch OFF.
2.
Disconnect climate controlled seat temperature dial connector.
3.
Check continuity between climate controlled seat temperature
dial as follows.
OK or NG
OK
>> Replace climate controlled seat control unit.
NG
>> Replace climate controlled seat temperature dial.
Check Climate Controlled Seat Switch Ground Circuit
NIS0015A
1.
CHECK CLIMATE CONTROLLED SEAT SWITCH
1.
Turn ignition switch OFF.
2.
Disconnect climate controlled seat switch connector.
3.
Check continuity between climate controlled seat switch as fol-
lows.
OK or NG
OK
>> GO TO 2.
NG
>> Replace climate controlled seat switch.
2.
CHECK CLIMATE CONTROLLED SEAT SWITCH GROUND CIRCUIT
Check continuity between climate controlled seat switch connector
B156 (driver side), B356 (passenger side) terminal JCA and ground.
OK or NG
OK
>> Climate controlled seat control circuit check is OK.
NG
>> Repair or replace harness.
Terminal
Condition
Continuity(
Ω
)
(Approx)
J7
J15
Temperature dial 1st
2370
Temperature dial 2nd
1100
Temperature dial 3rd
619
Temperature dial 4th
237
PIIB0390E
Terminal
Condition
Continuity
J6
JCA
Climate controlled seat switch HEAT position
Yes
Climate controlled seat switch OFF
No
J16
Climate controlled seat switch COOL position
Yes
Climate controlled seat switch OFF
No
PIIA3350E
JCA (B)
−
Ground
:Continuity should exist.
PIIA3332E
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