Infiniti QX56 (Z62). Manual — part 1137
SE-86
< DTC/CIRCUIT DIAGNOSIS >
CLIMATE CONTROLLED SEAT CUSHION BLOWER MOTOR
CLIMATE CONTROLLED SEAT CUSHION BLOWER MOTOR
Component Function Check
INFOID:0000000006217406
1.
CHECK CLIMATE CONTROLLED SEAT CUSHION BLOWER MOTOR FUNCTION
When turning the climate controlled seat switch to the HEAT or COOL mode position, check that the climate
controlled seat cushion blower is operated in each specific mode.
Is the inspection result normal?
YES
>> Climate controlled seat cushion blower motor is OK.
NO
>> Refer to
Diagnosis Procedure
INFOID:0000000006217407
1.
CHECK CLIMATE CONTROLLED SEAT CUSHION BLOWER MOTOR POWER SUPPLY
1.
Turn ignition switch ON.
2.
Check voltage between climate controlled seat cushion blower motor harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> GO TO 2.
2.
CHECK CLIMATE CONTROLLED SEAT CUSHION BLOWER MOTOR POWER SUPPLY CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect climate controlled seat cushion blower motor connector and climate controlled seat control
unit connector.
3.
Check continuity between climate controlled seat cushion blower motor harness connector and climate
controlled seat control unit harness connector.
4.
Check continuity between climate controlled seat cushion blower motor harness connector and ground.
Is the inspection result normal?
YES
>> Replace climate controlled seat control unit. Refer to
SE-117, "CLIMATE CONTROLLED SEAT
UNIT : Disassembly and Assembly"
.
NO
>> Repair or replace harness.
(+)
(–)
Condition
Voltage (V)
(Approx.)
Climate controlled seat cushion blower motor
Connector
Terminal
Driver side
B506
71
Ground
Climate controlled seat
switch
HEAT mode
12
COOL mode
Other than above
0
Passenger side
B516
Climate controlled seat
switch
HEAT mode
12
COOL mode
Other than above
0
Climate controlled seat cushion blower motor
Climate controlled seat control unit
Continuity
Connector
Terminal
Connector
Terminal
Driver side
B506
71
B507
71
Existed
Passenger side
B516
B517
Climate controlled seat cushion blower motor
Ground
Continuity
Connector
Terminal
Driver side
B506
71
Not existed
Passenger side
B516
CLIMATE CONTROLLED SEAT CUSHION BLOWER MOTOR
SE-87
< DTC/CIRCUIT DIAGNOSIS >
C
D
E
F
G
H
I
K
L
M
A
B
SE
N
O
P
3.
CHECK CLIMATE CONTROLLED SEAT CUSHION BLOWER MOTOR SPEED CONTROL SIGNAL
Check voltage between climate controlled seat cushion blower motor harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> GO TO 4.
4.
CHECK CLIMATE CONTROLLED SEAT CUSHION BLOWER MOTOR SPEED CONTROL SIGNAL CIR-
CUIT
1.
Turn ignition switch OFF.
2.
Disconnect climate controlled seat cushion blower motor connector and climate controlled seat control
unit connector.
3.
Check continuity between climate controlled seat cushion blower motor harness connector and climate
controlled seat control unit harness connector.
4.
Check continuity between climate controlled seat cushion blower motor harness connector and ground.
Is the inspection result normal?
YES
>> Replace climate controlled seat control unit. Refer to
SE-117, "CLIMATE CONTROLLED SEAT
UNIT : Disassembly and Assembly"
.
NO
>> Repair or replace harness.
5.
CHECK CLIMATE CONTROLLED SEAT CUSHION BLOWER MOTOR GROUND CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect climate controlled seat cushion blower motor and climate controlled seat control unit connec-
tor.
3.
Check continuity between climate controlled seat cushion blower motor harness connector and climate
controlled seat control unit harness connector.
(+)
(–)
Condition
Voltage (V)
(Approx.)
Climate controlled seat cushion blower motor
Connector
Terminal
Driver side
B506
72
Ground
Climate controlled seat
switch
HEAT
5.5 - 8
COOL
HI
9.2
MID
8
LO
6.5
Other than above
0
Passenger side
B516
Climate controlled seat
switch
HEAT
5.5 - 8
COOL
HI
9.2
MID
8
LO
6.5
Other than above
0
Climate controlled seat cushion blower motor
Climate controlled seat control unit
Continuity
Connector
Terminal
Connector
Terminal
Driver side
B506
72
B507
72
Existed
Passenger side
B516
B517
Climate controlled seat cushion blower motor
Ground
Continuity
Connector
Terminal
Driver side
B506
72
Not existed
Passenger side
B516
SE-88
< DTC/CIRCUIT DIAGNOSIS >
CLIMATE CONTROLLED SEAT CUSHION BLOWER MOTOR
4.
Check continuity between climate controlled seat cushion blower motor harness connector and ground.
Is the inspection result normal?
YES
>> Replace climate controlled seat cushion blower motor. Refer to
TROLLED SEAT UNIT : Disassembly and Assembly"
NO
>> Repair or replace harness.
Climate controlled seat cushion blower motor
Climate controlled seat control unit
Continuity
Connector
Terminal
Connector
Terminal
Driver side
B506
64
B507
64
Existed
Passenger side
B516
B517
Climate controlled seat cushion blower motor
Ground
Continuity
Connector
Terminal
Driver side
B506
64
Not existed
Passenger side
B516
CLIMATE CONTROLLED SEAT SWITCH INDICATOR
SE-89
< DTC/CIRCUIT DIAGNOSIS >
C
D
E
F
G
H
I
K
L
M
A
B
SE
N
O
P
CLIMATE CONTROLLED SEAT SWITCH INDICATOR
Component Function Check
INFOID:0000000006217408
1.
CHECK CLIMATE CONTROLLED SEAT SWITCH INDICATOR FUNCTION
Check that the related indicator lamp illuminates when climate controlled seat switch is set to HEAT or COOL
mode.
Is the inspection result normal?
YES
>> Climate controlled seat switch indicator function is OK.
NO
>> Refer to
Diagnosis Procedure
INFOID:0000000006217409
1.
CHECK CLIMATE CONTROLLED SEAT SWITCH INPUT SIGNAL
1.
Turn ignition switch ON.
2.
Check voltage between climate controlled seat switch harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> GO TO 2.
2.
CHECK CLIMATE CONTROLLED SEAT SWITCH INDICATOR CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect climate controlled seat switch connector and climate controlled seat control unit connector.
3.
Check continuity between climate controlled seat switch harness connector and climate controlled seat
control unit harness connector.
4.
Check continuity between climate controlled seat switch harness connector and ground.
(+)
(–)
Condition
Voltage (V)
(Approx.)
Climate controlled seat switch
Connector
Terminal
Driver side
M38
5
Ground
Climate controlled seat
switch (driver side)
HEAT mode
12
OFF
0
4
COOL mode
12
OFF
0
Passenger side
M39
5
Climate controlled seat
switch (passenger side)
HEAT mode
12
OFF
0
4
COOL mode
12
OFF
0
Climate controlled seat switch
Climate controlled seat control unit
Continuity
Connector
Terminal
Connector
Terminal
Driver side
M38
4
B507
56
Existed
5
57
Passenger side
M39
4
B517
56
5
57
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