Infiniti F50. Manual — part 780
POWER SEAT
SE-111
C
D
E
F
G
H
J
K
L
M
A
B
SE
2.
CHECK SLIDING MOTOR HARNESS
1.
Disconnect sliding motor connector.
2.
Check continuity between front power seat passenger side
switch connector B342 terminals 1 (W), 8 (B/W) and body sliding
motor connector B343 terminals 1 (W), 8 (B/W).
3.
Check continuity between front power seat passenger side
switch connector B342 terminal 1 (W), 8 (B/W) and ground.
OK or NG
OK
>> Replace sliding motor.
NG
>> Repair or replace harness between front power seat passenger side switch and sliding motor.
Front Power Seat Passenger Side Reclining Circuit Inspection
EIS003V3
1.
CHECK POWER SEAT SWITCH
1.
Turn ignition switch OFF.
2.
Disconnect front power seat passenger side switch connector.
3.
Check continuity between front power seat passenger side
switch as follows.
OK or NG
OK
>> GO TO 2.
NG
>> Replace front power seat passenger side switch.
2.
CHECK RECLINING MOTOR HARNESS
1.
Disconnect reclining motor connector.
2.
Check continuity between front power seat passenger side
switch connector B342 terminals 2 (G), 9 (PU) and reclining
motor connector B344 terminals 2 (G), 9 (PU).
3.
Check continuity between front power seat passenger side
switch connector B342 terminals 2 (G), 9 (PU) and ground.
OK or NG
OK
>> Replace reclining motor.
NG
>> Repair or replace harness between front power seat passenger side switch and reclining motor.
1 (W)
−
1 (W)
:Continuity should exist.
8 (B/W)
−
8 (B/W)
:Continuity should exist.
1 (W)
−
Ground
:Continuity should not exist.
8 (B/W)
−
Ground
:Continuity should not exist.
PIIA3968E
Terminal
Condition
Continuity
2
15A
Reclining switch backward.
YES
16
Reclining switch forward.
YES
15A, 16
Other than above
NO
9
15A
Reclining switch forward.
YES
16
Reclining switch backward.
YES
15A, 16
Other than above
NO
PIIA3970E
2 (G)
−
2 (G)
:Continuity should exist
9 (PU)
−
9 (PU)
:Continuity should exist
2 (G)
−
Ground
:Continuity should not exist
9 (PU)
−
Ground
:Continuity should not exist
PIIA3971E
SE-112
POWER SEAT
Front Power Seat Passenger Side Front Lifting Circuit Inspection
EIS003V4
1.
CHECK POWER SEAT SWITCH
1.
Turn ignition switch OFF.
2.
Disconnect front power seat passenger side switch connector.
3.
Check continuity between front power seat passenger side
switch as follows.
OK or NG
OK
>> GO TO 2.
NG
>> Replace front power seat passenger side switch.
2.
CHECK FRONT LIFTING MOTOR HARNESS
1.
Disconnect front lifting motor connector.
2.
Check continuity between front power seat passenger side
switch connector B342 terminals 10 (OR), 11 (LG) and front lift-
ing motor connector B346 terminals 10 (OR), 11 (LG).
3.
Check continuity between front power seat passenger side
switch connector B342 terminals 10 (OR), 11 (LG) and ground.
OK or NG
OK
>> Replace front lifting motor.
NG
>> Repair or replace harness between front power seat passenger side switch and front lifting motor.
Terminal
Condition
Continuity
10
15A
Front lifting switch up.
YES
16
Front lifting switch down.
YES
15A, 16
Other than above
NO
11
15A
Front lifting switch down.
YES
16
Front lifting switch up.
YES
15A, 16
Other than above
NO
PIIA3973E
10 (OR)
−
10 (OR)
:Continuity should exist.
11 (LG)
−
11 (LG)
:Continuity should exist.
10 (OR)
−
Ground
:Continuity should not exist.
11 (LG)
−
Ground
:Continuity should not exist.
PIIA3974E
POWER SEAT
SE-113
C
D
E
F
G
H
J
K
L
M
A
B
SE
Front Power Seat Passenger Side Rear Lifting Circuit Inspection
EIS003V5
1.
CHECK POWER SEAT SWITCH
1.
Turn ignition switch OFF.
2.
Disconnect front power seat passenger side switch connector.
3.
Check continuity between front power seat passenger side
switch as follows.
OK or NG
OK
>> GO TO 2.
NG
>> Replace front power seat passenger side switch.
2.
CHECK REAR LIFTING MOTOR HARNESS
1.
Disconnect front power seat passenger side switch connector
and rear lifting motor connector.
2.
Check continuity between front power seat passenger side
switch connector B342 terminals 4 (R), 6 (Y) and rear lifting
motor connector B347 terminals 4 (R), 6 (Y).
3.
Check continuity between front power seat passenger side
switch connector B342 terminals 4 (R), 6 (Y) and ground.
OK or NG
OK
>> Replace rear lifting motor.
NG
>> Repair or replace harness between front power seat passenger side switch and rear lifting motor.
Rear Power Seat Control unit Power Supply and Ground Circuit Inspection
(With Heated Seat)
EIS003V7
1.
CHECK REAR POWER SEAT CONTROL UNIT POWER SUPPLY CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect rear power seat control unit connector.
3.
Check voltage between rear power seat control unit connector
B162 (LH), B362 (RH) terminal 2 (G) and ground.
OK or NG
OK
>> GO TO 2.
NG
>> Repair or replace harness between fuse block (J/B)
No.1 and rear power seat control unit.
Terminal
Condition
Continuity
4
15A
Rear lifting switch up.
YES
16
Rear lifting switch down.
YES
15A, 16
Other than above
NO
6
15A
Rear lifting switch down.
YES
16
Rear lifting switch up.
YES
15A, 16
Other than above
NO
PIIA3976E
4 (R)
−
4 (R)
:Continuity should exist.
6 (Y)
−
6 (Y)
:Continuity should exist.
4 (R)
−
Ground
:Continuity should not exist.
6 (Y)
−
Ground
:Continuity should not exist.
PIIA3977E
2 (G)
−
Ground
: Battery voltage.
PIIA3978E
SE-114
POWER SEAT
2.
CHECK REAR POWER SEAT CONTROL UNIT GROUND CIRCUIT
Check continuity between rear power seat control unit connector
B162 (LH), B362 (RH) terminals 15 (B), 28 (B) and ground.
OK or NG
OK
>> Rear power seat control unit power supply and ground
circuit check is OK.
NG
>> Repair or replace harness between rear power seat con-
trol unit and ground.
Rear Power Seat Sliding Motor Circuit Inspection (With Heated Seat)
EIS003V2
1.
CHECK REAR POWER SEAT SLIDING MOTOR POWER SUPPLY
1.
Turn ignition switch OFF.
2.
Disconnect rear power seat sliding motor.
3.
Check voltage between rear power seat control unit connector
and ground.
OK or NG
OK
>> Rear power seat sliding motor circuit is OK.
NG
>> GO TO 2.
2.
CHECK REAR POWER SEAT SLIDING MOTOR HARNESS
1.
Disconnect rear power seat control unit connector.
2.
Check continuity between rear power seat control unit connector
B162 (LH), B362 (RH) terminal 4 (Y), 11 (GY) and rear power
seat sliding motor connector B164 (LH), B364 (RH) terminal 4
(Y), 11 (GY).
3.
Check continuity between rear power seat control unit connector
B162 (LH), B362 (RH) terminal 4 (Y), 11 (GY) and ground.
OK or NG
OK
>> Replace rear power seat sliding motor.
NG
>> Repair or replace harness between rear power seat control unit and rear power seat sliding motor.
15 (B)
−
Ground
:Continuity should exist.
28 (B)
−
Ground
:Continuity should exist.
PIIA3979E
Con-
nector
Terminal
(Wire color)
Condition
Voltage (V)
(Approx.)
(+)
(–)
B162
(LH),
B362
(RH)
4 (Y)
Ground
Rear power seat switch (sliding
switch) forward.
Battery voltage
Rear power seat switch (sliding
switch) OFF.
0
11 (GY)
Rear power seat switch (sliding
switch) backward.
Battery voltage
Rear power seat switch (sliding
switch) OFF.
0
PIIA3980E
4 (Y)
−
4 (Y)
:Continuity should exist.
11 (GY)
−
11 (GY)
:Continuity should exist.
4 (Y)
−
Ground
:Continuity should not exist.
11 (GY)
−
Ground
:Continuity should not exist.
PIIA3981E
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