Infiniti F50. Manual — part 782
POWER SEAT
SE-119
C
D
E
F
G
H
J
K
L
M
A
B
SE
3.
CHECK DOOR SWITCH
1.
Disconnect door lock assembly connector.
2.
Check continuity between door lock assembly as follows.
OK or NG
OK
>> GO TO 4.
NG
>> Replace door lock assembly.
4.
CHECK DOOR SWITCH HARNESS
Check continuity between door lock assembly connector D62 (LH),
D82 (RH) terminal 2 (B) and ground.
OK or NG
OK
>> Check the condition of the harness and connector.
NG
>> Repair or replace harness between door lock assembly
and ground.
Rear Power Seat Sliding Sensor Circuit Inspection (With Heated Seat)
EIS003VC
1.
CHECK REAR POWER SEAT SLIDING MOTOR SENSOR POWER SUPPLY
1.
Turn ignition switch OFF.
2.
Check signal between rear power seat control unit connector
and ground with oscilloscope.
OK or NG
OK
>> Rear power seat sliding sensor circuit check is OK.
NG
>> GO TO 2.
Terminal
Condition
Continuity
1
2
Door switch ON
YES
Door switch OFF
NO
PIIA3993E
2 (B)
−
Ground
:Continuity should exist
PIIA4025E
Con-
nec-
tor
Terminal
(Wire color)
Condition
Voltage (V)
(Approx.)
(+)
(–)
B163
(LH),
B363
(RH)
21
(W/G)
Ground
Rear power seat
switch (sliding
switch) forward
or backward.
PIIA3994E
SIIA0690J
SE-120
POWER SEAT
2.
CHECK REAR POWER SEAT SLIDING MOTOR SENSOR HARNESS
1.
Disconnect rear power seat control unit connector and rear
power seat sliding motor sensor connector.
2.
Check continuity between rear power seat control unit connector
B163 (LH), B363 (RH) terminal 21 (W/G), 74 (G/R) and rear
power seat sliding motor connector B164 (LH), B364 (RH) termi-
nal 21 (W/G), 74 (G/R).
3.
Check continuity between rear power seat control unit connector
B162 (LH), B362 (RH) terminal 21 (W/G), 74 (G/R) 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.
Rear Power Seat Control Unit Power Supply and Ground Inspection (Without
Heated Seat)
EIS003VE
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
B168 (LH), B368 (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.
2.
CHECK REAR POWER SEAT CONTROL UNIT GROUND CIRCUIT
Check continuity between rear power seat control unit connector
B168 (LH), B368 (RH) terminals 15 (B), 28 (G/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.
21 (W/G)
−
21 (W/G)
:Continuity should exist.
74 (G/R)
−
74 (G/R)
:Continuity should exist.
21 (W/G)
−
Ground
:Continuity should not exist.
74 (G/R)
−
Ground
:Continuity should not exist.
PIIA3995E
2 (G)
−
Ground
: Battery voltage
PIIA3997E
15 (B)
−
Ground
:Continuity should exist
28 (G/B)
−
Ground
:Continuity should exist
PIIA3998E
POWER SEAT
SE-121
C
D
E
F
G
H
J
K
L
M
A
B
SE
Rear Power Seat Sliding Motor Circuit Inspection (Without Heated Seat)
EIS003VF
1.
CHECK REAR POWER SEAT SLIDING MOTOR POWER SUPPLY
1.
Turn ignition switch OFF.
2.
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 and rear
power seat sliding motor connector.
2.
Check continuity between rear power seat control unit connector
B168 (LH), B368 (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
B168 (LH), B368 (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.
Con-
nector
Terminal
(Wire color)
Condition
Voltage (V)
(Approx.)
(+)
(–)
B168
(LH),
B368
(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
PIIA3999E
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
PIIA4000E
SE-122
POWER SEAT
Rear Power Seat Switch Circuit Inspection (Without Heated Seat)
EIS003VG
1.
CHECK REAR POWER SEAT SWITCH POWER SUPPLY
1.
Turn ignition switch OFF.
2.
Check voltage between rear power seat control unit connector
and ground.
OK or NG
OK
>> Rear power seat switch circuit is OK.
NG
>> GO TO 2.
2.
CHECK REAR POWER SEAT SWITCH HARNESS
1.
Disconnect rear power seat control unit connector and rear
power seat switch connector.
2.
Check continuity between rear power seat control unit connector
B168 (LH), B368 (RH) terminal 18 (BR/W), 24 (OR/L) and rear
power seat switch connector D55 (LH), D75 (RH) terminal 7 (G/
Y), 8 (OR/L).
3.
Check continuity between rear power seat control unit connector B168 (LH), B368 (RH) terminal 18 BR/
W), 24 (OR/L) and ground.
OK or NG
OK
>> GO TO 3.
NG
>> Repair or replace harness between rear power seat control unit and rear power seat switch.
Con-
nector
Terminal
(Wire color)
Condition
Voltage (V)
(Approx.)
(+)
(–)
B168
(LH),
B368
(RH)
18 (BR/W)
Ground
Rear power seat switch (sliding
switch) backward.
0
Rear power seat switch (sliding
switch) OFF.
Battery
voltage
24 (L/G)
Ground
Rear power seat switch (sliding
switch) forward.
0
Rear power seat switch (sliding
switch) OFF.
Battery
voltage
PIIA4017E
Rear power seat LH
18 (BR/W)
−
8 (OR/L)
:Continuity should exist
24 (L/G)
−
7 (G/Y)
:Continuity should exist
Rear power seat RH
18 (BR/W)
−
8 (OR/L)
:Continuity should exist
24 (L/G)
−
7 (G/Y)
:Continuity should exist
18 (BR/W)
−
Ground
:Continuity should not exist
24 (L/G)
−
Ground
:Continuity should not exist
PIIA4018E
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