Infiniti G35 (V35) Sedan. Manual — part 1142
LUMBAR SUPPORT SWITCH
SE-35
< COMPONENT DIAGNOSIS >
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LUMBAR SUPPORT SWITCH
Description
INFOID:0000000000960519
Lumbar support switch controls the power supplied to lumbar support motor.
Component Function Check
INFOID:0000000000960520
1.
CHECK LUMBAR SUPPORT SWITCH FUNCTION
Check lumbar support operation with lumbar support switch.
Is the inspection results normal?
YES
>> Lumbar support switch is OK.
NO
>> Refer to
Diagnosis Procedure
INFOID:0000000000960521
1.
CHECK LUMBAR SUPPORT SWITCH POWER SUPPLY CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect lumbar support switch connector.
3.
Check voltage between lumbar support switch connector and ground.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair or replace circuit.
2.
CHECK LUMBAR SUPPORT SWITCH GROUND CIRCUIT
Check continuity between lumbar support switch connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace circuit.
3.
CHECK LUMBAR SUPPORT SWITCH
Check lumbar support switch.
Refer to
Is the inspection result normal?
YES
>> Lumbar support switch is OK.
NO
>> Replace lumbar support switch.
Component Inspection
INFOID:0000000000960522
1.
CHECK LUMBAR SUPPORT SWITCH
1.
Disconnect lumbar support switch connector.
2.
Check continuity between lumbar support switch terminals.
Lumbar support switch
Ground
Voltage
Connector
Terminal
B457
33
Battery voltage
Lumbar support switch connector
Terminal
Ground
Continuity
B457
48
Existed
SE-36
< COMPONENT DIAGNOSIS >
LUMBAR SUPPORT SWITCH
Is the inspection result normal?
YES
>> Lumbar support switch is OK.
NO
>> Replace lumbar support switch. Refer to
SE-111, "Removal and Installation"
Terminal
Switch condition
Continuity
57
33
Forward
Existed
Other than above
Not existed
58
Backward
Existed
Other than above
Not existed
57
48
Backward
Existed
Other than above
Not existed
58
Forward
Existed
Other than above
Not existed
LUMBAR SUPPORT MOTOR
SE-37
< COMPONENT DIAGNOSIS >
C
D
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F
G
H
I
K
L
M
A
B
SE
N
O
P
LUMBAR SUPPORT MOTOR
Description
INFOID:0000000000960523
With the power supplied to lumbar support switch, lumbar support motor operates the forward and backward
movement of seatback support device.
Component Function Check
INFOID:0000000000960524
1.
CHECK LUMBAR SUPPORT MOTOR FUNCTION
Check lumbar support operation with lumbar support switch.
Is the inspection results normal?
YES
>> Lumbar support motor is OK.
NO
>> Refer to
Diagnosis Procedure
INFOID:0000000000960525
1.
CHECK LUMBAR SUPPORT MOTOR POWER SUPPLY
1.
Disconnect lumbar support motor connector.
2.
Check voltage between lumbar support motor connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> GO TO 2.
2.
CHECK LUMBAR SUPPORT MOTOR CIRCUIT
1.
Disconnect lumbar support switch connector.
2.
Check continuity between lumbar support switch and lumbar support motor.
3.
Check continuity between lumbar support switch and ground.
Is the inspection result normal?
YES
>> Check intermittent incident. Refer to
GI-39, "Intermittent Incident"
.
NO
>> Repair or replace circuit.
3.
CHECK LUMBAR SUPPORT MOTOR
Check lumbar support motor.
Refer to
Is the inspection result normal?
YES
>> Check intermittent incident. Refer to
GI-39, "Intermittent Incident"
.
NO
>> Replace lumbar support motor.
Lumbar support motor
Ground
Lumbar support
switch condition
Voltage (V)
Approx.
Connector
Terminal
B458
57
Forward position
Battery voltage
Other than above
0
58
Backward position
Battery voltage
Other than above
0
Lumbar support switch
connector
Terminal
Lumbar support motor
Terminal
Continuity
B457
57
B458
57
Existed
58
58
Lumbar support switch connector
Terminal
Ground
Continuity
B457
57
Not existed
58
SE-38
< COMPONENT DIAGNOSIS >
LUMBAR SUPPORT MOTOR
Component Inspection
INFOID:0000000000960526
1.
CHECK LUMBAR SUPPORT MOTOR-I
Check visually the lumbar support motor to see if any foreign object is not disturbing the functionment or if the
lumbar support motor is not broken.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair or replace lumbar support motor.
2.
CHECK LUMBAR SUPPORT MOTOR-II
1.
Turn ignition switch OFF.
2.
Disconnect lumbar support motor connector.
3.
Supply lumbar support motor terminals with battery voltage and check operation.
Is the inspection result normal?
YES
>> Lumbar support motor is OK..
NO
>> Replace lumbar support motor.
Terminal
Operation
(+)
(–)
57
58
Forward
58
57
Backward
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