Infiniti F50. Manual — part 796
CLIMATE CONTROLLED SEAT
SE-175
C
D
E
F
G
H
J
K
L
M
A
B
SE
4.
CHECK CLIMATE CONTROLLED SEAT CONTROL UNIT POWER SUPPLY CIRCUIT 2
1.
Turn ignition switch OFF.
2.
Disconnect climate controlled seat control unit connector.
3.
Turn ignition switch ON.
4.
Check voltage between climate controlled seat control unit con-
nector and ground.
OK or NG
OK
>> GO TO 5.
NG
>> Repair or replace harness between climate controlled seat relay and climate controlled seat con-
trol unit.
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 between fuse block (J/B) and
climate controlled seat control unit.
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 (Driver side), B358 (passenger side) terminal
JC (B) 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 between climate controlled
seat control unit and ground.
Con-
nector
Terminal
(Wire color)
Condition
Voltage (V)
(Approx)
(+)
(–)
B358
JB (W/G)
Ground
Turn ignition switch ON.
Battery voltage
Turn ignition switch OFF.
0
PIIA3384E
Con-
nector
Terminal
(Wire color)
Condition
Voltage (V)
(Approx)
(+)
(–)
B358
JD (W/R)
Ground
Turn ignition switch ON.
Battery voltage
Turn ignition switch OFF.
0
PIIA3385E
JC (B)
−
ground
:Continuity should exist
PIIA3335E
SE-176
CLIMATE CONTROLLED SEAT
Climate Controlled Seat “HEAT” Switch Circuit Inspection
EIS003SG
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
(PU) and climate controlled seat switch connector B156 (driver
side), B356 (passenger side) terminal J6 (PU).
4.
Check continuity between climate controlled seat control unit
connector B159 (driver side), B359 (passenger side) terminal J6
(PU) and ground.
OK or NG
OK
>> GO TO 2.
NG
>> Repair or replace harness between climate controlled seat control unit and climate controlled seat
switch.
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.
J6 (PU)
−
J6 (PU)
:Continuity should exist.
J6 (PU)
−
Ground
:Continuity should not exist.
PIIA3331E
Connector
Terminal
(Wire color)
Condition
Voltage (V)
(Approx.)
(+)
(–)
B156
(Driver side),
B356
(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
CLIMATE CONTROLLED SEAT
SE-177
C
D
E
F
G
H
J
K
L
M
A
B
SE
Climate Controlled Seat “COOL” Switch Circuit Inspection
EIS003SH
1.
CHECK CLIMATE CONTROLLED SEAT COOL 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
J16 (R) and climate controlled seat switch connector B156
(driver side), B356 (passenger side) terminal J16 (R).
4.
Check continuity between climate controlled seat control unit
connector B159 (driver side), B359 (passenger side) terminal
J16 (R) and ground.
OK or NG
OK
>> GO TO 2.
NG
>> Repair or replace harness between climate controlled seat control unit and climate controlled seat
switch.
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.
J16 (R)
−
J16 (R)
:Continuity should exist.
J16 (R)
−
Ground
:Continuity should not exist.
PIIA3329E
Connector
Terminal
(Wire color)
Condition
Voltage (V)
(Approx.)
(+)
(–)
B156
(Driver side),
B356
(Passenger side)
J16 (R)
Ground
Turn 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
SE-178
CLIMATE CONTROLLED SEAT
Climate Controlled Seat Temperature Dial Inspection
EIS003SI
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.
Climate Controlled Seat Temperature Dial Circuit Inspection
EIS003SJ
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
(L), J15 (Y) and climate controlled seat temperature dial connec-
tor B157 (driver side), B357 (passenger side) terminal J7 (L),
J15 (Y).
4.
Check continuity between climate controlled seat control unit
connector B159 (driver side), B359 (passenger side) terminal J7
(L), J15 (Y) and ground.
OK or NG
OK
>> GO TO 2.
NG
>> Repair or replace harness between climate controlled seat control unit and climate controlled seat
temperature dial.
Terminal
Condition
Continuity(
Ω
)
(Approx)
J7
J15
Temperature dial 1st.
2370
Temperature dial 2nd.
1100
Temperature dial 3rd.
619
Temperature dial 4th.
237
PIIB0390E
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
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