Infiniti M45 (Y34). Manual — part 774
CLIMATE CONTROLLED SEAT
SE-117
C
D
E
F
G
H
J
K
L
M
A
B
SE
Climate Controlled Seat Temperature Dial Inspection
AIS002CA
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.
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
AIS002CB
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
PIIA3334E
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
SE-118
CLIMATE CONTROLLED SEAT
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 the following
●
When voltage is 12V, GO TO3.
●
When voltage is 0V, Replace climate controlled seat control unit.
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.
OK or NG
OK
>> Replace climate controlled seat control unit.
NG
>> Replace climate controlled seat temperature dial.
Connector
Terminal
(Wire color)
Condition
Voltage (V)
(Approx.)
(+)
(–)
B159
(Driver side),
B359
(Passenger side)
J7(L)
Ground
Turn
ignition
switch
ON.
temperature dial
1 – 4
7.1 – 11.4
Turn ignition switch OFF.
0
PIIA3383E
Terminal
Condition
Continuity
Ω
(Approx.)
J7
J15
Temperature dial 1st.
2370
Temperature dial 2nd.
1100
Temperature dial 3rd.
619
Temperature dial 4th.
237
PIIA3334E
CLIMATE CONTROLLED SEAT
SE-119
C
D
E
F
G
H
J
K
L
M
A
B
SE
Climate Controlled Seat Switch Ground Circuit Inspection
AIS002CC
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.
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 (B).
OK or NG
OK
>> Climate controlled seat control circuit check is OK.
NG
>> Repair or replace harness between climate controlled
seat switch and body ground.
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
SE-120
CLIMATE CONTROLLED SEAT
Seat Cushion Thermal Electric Device Circuit Inspection
AIS002CD
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
(Y/G), J2 (W/L) and climate controlled seat temperature dial
connector B154 (driver side), B354 (passenger side) terminal J1
(Y/G), J2 (W/L).
4.
Check continuity between climate controlled seat control unit
connector B159 (driver side), B359 (passenger side) terminal J1
(Y/G), J2 (W/L) and ground.
OK or NG
OK
>> GO TO 2.
NG
>> Repair or replace harness between climate controlled seat control unit and seat cushion thermal
electric device.
2.
CHECK SEAT CUSHION THERMAL ELECTRIC DEVICE POWER SUPPLY CIRCUIT POWER SUPPLY
CIRCUIT
1.
Connect 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
>> 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”.
Battery
voltage
Turn ignition switch OFF.
0
J2(WL)
Turn ignition switch ON,
climate controlled seat
switch turn “COOL”.
Battery
voltage
Turn ignition switch OFF.
0
PIIA3338E
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