Infiniti QX56 (Z62). Manual — part 1133
SE-70
< DTC/CIRCUIT DIAGNOSIS >
POWER SUPPLY AND GROUND CIRCUIT
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Repair or replace harness or connector.
5.
CHECK CLIMATE CONTROLLED SEAT RELAY GROUND CIRCUIT
1.
Turn ignition switch OFF.
2.
Check continuity between climate controlled seat relay harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> Repair or replace harness.
6.
CHECK CLIMATE CONTROLLED SEAT RELAY
Check climate controlled seat relay.
Refer to
SE-70, "CLIMATE CONTROLLED SEAT CONTROL UNIT : Component Inspection"
.
Is the inspection result normal?
YES
>> GO TO 8.
NO
>> Replace climate controlled seat relay.
7.
CHECK CLIMATE CONTROLLED SEAT CONTROL UNIT (PASSENGER SIDE) GROUND CIRCUIT
1.
Turn ignition switch OFF.
2.
Check continuity between harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 8.
NO
>> Repair harness or connector.
8.
CHECK INTERMITTENT INCIDENT
GI-40, "Intermittent Incident"
>> INSPECTION END
CLIMATE CONTROLLED SEAT CONTROL UNIT : Component Inspection
INFOID:0000000006217390
1.
CHECK CLIMATE CONTROLLED SEAT RELAY
1.
Turn ignition switch OFF.
2.
Remove climate controlled seat relay.
(+)
(
−
)
Voltage (V)
(Approx.)
Climate controlled seat relay
Connector
Terminal
E18
2
Ground
Battery voltage
5
Climate controlled seat relay
Ground
Continuity
Connector
Terminal
E18
1
Existed
Climate controlled seat control unit (passenger side)
Ground
Continuity
Connector
Terminal
B519
43
Existed
POWER SUPPLY AND GROUND CIRCUIT
SE-71
< DTC/CIRCUIT DIAGNOSIS >
C
D
E
F
G
H
I
K
L
M
A
B
SE
N
O
P
3.
Check the continuity between climate controlled seat relay ter-
minals under the following conditions.
Is the inspection result normal?
YES
>> INSPECTION END.
NO
>> Replace climate controlled seat relay.
Terminal
Condition
Continuity
3
5
12 V direct current supply between ter-
minals 1 and 2.
Existed
No current supply
Not existed
6
7
12 V direct current supply between ter-
minals 1 and 2.
Existed
No current supply
Not existed
JMJIA2104ZZ
SE-72
< DTC/CIRCUIT DIAGNOSIS >
CLIMATE CONTROLLED SEAT SWITCH
CLIMATE CONTROLLED SEAT SWITCH
Component Function Check
INFOID:0000000006217391
1.
CHECK CLIMATE CONTROLLED SEAT SWITCH FUNCTION
Check that climate controlled seat activates when operating climate controlled seat control switch.
Is the inspection result normal?
YES
>> Climate controlled seat switch is OK.
NO
>> Refer to
Diagnosis Procedure
INFOID:0000000006217392
1.
CHECK CLIMATE CONTROLLED SEAT CONTROL UNIT INPUT SIGNAL
1.
Turn ignition switch ON.
2.
Check voltage between climate controlled seat control unit harness connector and ground.
Is the inspection result normal?
YES
>> Climate controlled seat switch circuit is OK.
NO-1 HEAT or COOL mode is NG>>GO TO 2.
NO-2 HEAT and COOL modes are NG>>GO TO 3.
2.
CHECK CLIMATE CONTROLLED SEAT SWITCH 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.
(+)
(–)
Condition
Voltage (V)
(Approx.)
Climate controlled seat control unit
Connector
Terminal
Driver side
B508
54
Ground
Climate controlled seat
switch (driver side)
COOL
HI
2.6 - 4.2
MID 1.6
-
2.5
LO 0.8
-
1.5
OFF
0
55
HEAT
HI 2.6
-
4.2
MID 1.6
-
2.5
LO 0.8
-
1.5
OFF
0
Passenger side
B518
54
Climate controlled seat
switch (passenger seat)
COOL
HI
2.6 - 4.2
MID 1.6
-
2.5
LO 0.8
-
1.5
OFF
0
55
HEAT
HI 2.6
-
4.2
MID 1.6
-
2.5
LO 0.8
-
1.5
OFF
0
CLIMATE CONTROLLED SEAT SWITCH
SE-73
< DTC/CIRCUIT DIAGNOSIS >
C
D
E
F
G
H
I
K
L
M
A
B
SE
N
O
P
4.
Check continuity between climate controlled seat switch harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Repair or replace harness.
3.
CHECK CLIMATE CONTROLLED SEAT SWITCH POWER SUPPLY
1.
Turn ignition switch OFF.
2.
Disconnect climate controlled seat switch connector.
3.
Turn ignition switch ON.
4.
Check voltage between climate controlled seat switch harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> GO TO 4.
4.
CHECK CLIMATE CONTROLLED SEAT SWITCH POWER SUPPLY CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect 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.
Is the inspection result normal?
Climate controlled seat switch
Climate cotrolled seat control unit
Continuity
Connector
Terminal
Connector
Terminal
Driver side
COOL
M38
2
B508
54
Existed
HEAT
3
55
Passenger side
COOL
M39
2
B518
54
HEAT
3
55
Climate controlled seat switch
Ground
Continuity
Connector
Terminal
Driver side
COOL
M38
2
Not existed
HEAT
3
Passenger side
COOL
M39
2
HEAT
3
(+)
(–)
Voltage (V)
(Approx.)
Climate controlled seat switch
Connector
Terminal
Driver side
M38
1
Ground
12
Passenger side
M39
Climate controlled seat switch
Climate cotrolled seat control unit
Continuity
Connector
Terminal
Connector
Terminal
Driver side
M38
1
B508
52
Existed
Passenger side
M39
B518
Climate controlled seat switch
Ground
Continuity
Connector
Terminal
Driver side
M38
1
Not existed
Passenger side
M39
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