Infiniti G35 (V35). Manual — part 755
SE-122
POWER SEAT
4.
CHECK DRIVER SEAT CONTROL UNIT OUTPUT SIGNAL
1.
Connect driver seat control unit connector.
2.
Check voltage between driver seat control unit connector B324
terminal 5 and ground.
OK or NG
OK
>> Check the condition of the harness and the connector.
NG
>> Replace driver control unit.
Check Vehicle Speed Signal
NIS000IF
1.
CHECK VEHICLE SPEED INPUT SIGNAL
Check the signal between seat control unit connector B324 (driver side), B502 (passenger side) terminal 15
and ground with oscilloscope.
OK or NG
OK
>> Vehicle speed signal is OK.
NG
>> GO TO 2.
2.
CHECK VEHICLE SPEED SIGNAL CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect combination meter and seat control unit connector.
3.
Check continuity between combination meter connector M19
terminal 14 and seat control unit connector B324 (driver side),
B502 (passenger side) terminal 15.
OK or NG
OK
>> Check combination meter. Refer to
NG
>> Repair or replace harness between combination meter
and seat control unit.
5 (L/Y) – Ground
: Approx. 5V
PIIA4675E
Connector
Terminals
Condition
Signal
(Reference value)
(+)
(-)
B324
B502
15
(B/R)
Ground
when
vehicle
speed is
approx.40
km/h (25
MPH)
PIIA4073E
ELF1080D
14 (W/G) – 15 (B/R)
: Continuity should exist.
PIIB3164E
POWER SEAT
SE-123
C
D
E
F
G
H
J
K
L
M
A
B
SE
Check Sliding Limit Switch Signal
NIS000IG
1.
CHECK SLIDING LIMIT SWITCH SIGNAL
When operation condition consists, check voltage between seat control unit connector B324 (driver side),
B502 (passenger side) terminal 13 and ground.
OK or NG
OK
>> Sliding limit switch (forward) signal is OK.
NG
>> GO TO 2.
2.
CHECK HARNESS CONTINUITY
1.
Disconnect seat control unit and sliding limit switch connector.
2.
Check continuity between seat control unit connector B324
(driver side),B502 (passenger side) terminal 13 and sliding limit
switch connector B329 (driver side), B509(passenger side) ter-
minal 1.
OK or NG
OK
>> GO TO 3.
NG
>> Repair or replace harness between seat control unit and
sliding limit switch.
3.
CHECK SLIDING LIMIT SWITCH CIRCUIT
Check continuity between sliding limit switch connector B329 (driver
side), B509 (passenger side) terminal 2 and ground.
OK or NG
OK
>> GO TO 4.
NG
>> Repair or replace harness.
4.
CHECK SLIDING LIMIT SWITCH
Check continuity between sliding limit switch connector B329 (driver
side), B509 (passenger side) terminals 1 and 2.
OK or NG
OK
>> Check the condition of the harness and the connector.
NG
>> Replace sliding limit switch.
Connector
Terminals
Condition
Voltage (V)
(Approx.)
(+)
(-)
B324
B502
13 (OR)
Ground
The seat slide front most part
0
Other than above
5
PIIA4076E
13 (OR) - 1 (OR)
: Continuity should exist.
PIIB4557E
2 (B) - Ground
: Continuity should exist.
PIIB4558E
Connector
Terminal
Condition
Continuity
B329
B509
1
2
When sliding limit switch fully front
Yes
Other than above
No
PIIB4559E
SE-124
POWER SEAT
Check Seatback Switch Signal
NIS000IH
1.
CHECK SEATBACK SWITCH SIGNAL
Check voltage between seat control unit connector and ground.
OK or NG
OK
>> Seatback switch signal is OK.
NG
>> GO TO 2.
2.
CHECK HARNESS CONTINUITY
1.
Disconnect seat control unit and seatback switch connector.
2.
Check continuity between seat control unit connector B324
(driver side), B502 (passenger side) terminal 2 and seatback
switch connector B348 (driver side), B518 (passenger side) ter-
minal 1.
OK or NG
OK
>> GO TO 3.
NG
>> Repair or replace harness between seat control unit and
seatback switch.
3.
CHECK SEATBACK SWITCH CIRCUIT
Check continuity between seatback switch connector B348 (driver
side), B518 (passenger side) terminal 2 and ground.
OK or NG
OK >> GO
TO
4.
NG
>> Repair or replace harness.
4.
CHECK SEATBACK SWITCH
Check continuity between seatback switch connector B348 (driver
side), B518 (passenger side) terminals 1and 2.
OK or NG
OK
>> Check the condition of the harness and the connector.
NG
>> Replace seatback switch.
Connector
Terminal
Condition
Voltage (V)
(Approx.)
B324
B502
2 (L)
Ground
When seatback switch forward
0
Other than above
5
PIIA4075E
2 (L) - 1 (L)
: Continuity should exist.
PIIB4560E
2 (B) - Ground
: Continuity should exist.
PIIB4561E
Connector
Terminal
Condition
Continuity
B348
B518
1
2
When seatback switch forward
Yes
Other than above
No
PIIB4562E
POWER SEAT
SE-125
C
D
E
F
G
H
J
K
L
M
A
B
SE
Check Power Walk-in Switch Signal
NIS000II
1.
CHECK POWER WALK-IN SWITCH SIGNAL
Check voltage between seat control unit connector and ground.
OK or NG
OK
>> Power walk-in switch signal is OK.
NG
>> GO TO 2.
2.
CHECK HARNESS CONTINUITY
1.
Disconnect seat control unit and power walk-in switch connector.
2.
Check continuity between seat control unit connector B324
(driver side), B502 (passenger side) terminal 4 and power walk-
in switch connector B349 (driver side), B519 (passenger side)
terminal 1.
OK or NG
OK
>> GO TO 3.
NG
>> Repair or replace harness between seat control unit and
power walk-in switch.
3.
CHECK POWER WALK-IN SWITCH CIRCUIT
Check continuity between power walk-in switch connector B349
(driver side), B519 (passenger side) terminal 2 and ground.
OK or NG
OK
>> GO TO 4.
NG
>> Repair or replace harness between seat control unit and
power walk-in switch.
4.
CHECK POWER WALK-IN SWITCH
Check continuity between power walk-in switch connector B349
(driver side), B519 (passenger side) terminals 1and 2.
OK or NG
OK
>> Check the condition of the harness and the connector.
NG
>> Replace power walk-in switch.
Connector
Terminal
Condition
Voltage (V)
(Approx.)
B324
B502
4 (G)
Ground
When power walk-in switch ON
0
Other than above
5
PIIA4077E
4 (G) - 1 (G)
: Continuity should exist.
PIIB4563E
2 (B) - Ground
: Continuity should exist.
PIIB4564E
Connector
Terminals
Condition
Continuity
B349
B519
1
2
When power walk-in switch ON
Yes
Other than above
No
PIIB4565E
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