Infiniti F50. Manual — part 775
AUTOMATIC DRIVE POSITIONER
SE-91
C
D
E
F
G
H
J
K
L
M
A
B
SE
4.
CHECK HARNESS CONTINUITY
1.
Disconnect BCM connector.
2.
Check continuity between BCM connector M4 terminals 106
(BR/Y), 112 (L/W) and seat memory switch connector D3 termi-
nals 6 (BR/Y), 7 (L/W).
3.
Check continuity between BCM connector M4 terminals 106
(BR/Y), 112 (L/W) and ground.
OK or NG
OK
>> GO TO 5.
NG
>> Repair or replace harness between BCM and memory switch.
5.
CHECK SEAT MEMORY SWITCH INDICATOR SIGNAL
Check voltage between BCM connector M4 terminals 106 (BR/Y),
112 (L/W) and ground.
OK or NG
OK
>> Replace BCM.
NG
>> Replace seat memory switch.
Lumber Support Circuit Inspection
EIS0042B
1.
CHECK LUMBER SUPPORT SWITCH
1.
Turn ignition switch OFF.
2.
Disconnect front power seat switch (driver side) connector.
3.
Check voltage between power seat switch (driver side) connec-
tor B144 terminal 16 (R) and ground.
OK or NG
OK
>> GO TO 2.
NG
>> Repair or replace harness between fuse block (J/B) and power seat switch (Driver side).
106 (BR/Y) – 6 (BR/Y)
: Continuity should exist.
112 (L/W) – 7 (L/W)
: Continuity should exist.
106 (BR/Y) – Ground
: Continuity should not exist.
112 (L/W) – Ground
: Continuity should not exist.
PIIA4373E
106 (BR/Y) – Ground
: Battery voltage.
112 (L/W) – Ground
: Battery voltage.
PIIA3313E
16 (R) – Ground:
: Battery voltage.
PIIA3376E
SE-92
AUTOMATIC DRIVE POSITIONER
2.
CHECK LUMBER SUPPORT SWITCH
Check continuity power seat switch.
OK or NG
OK
>> GO TO 3.
NG
>> The harness and connector is checked, and it is normal, replace power seat switch.
3.
CHECK LUMBER SUPPORT MOTOR HARNESS
1.
Disconnect lumber support motor connector.
2.
Check continuity between power seat switch connector (driver
side) B144 terminal 3 (GY), 5 (W/B) and lumber support motor
connector B195 terminal 3 (GY), 5 (W/B).
3.
Check continuity between power seat switch connector (driver
side) B144 terminal 3 (GY), 5 (W/B) and ground.
OK or NG
OK
>> GO TO 4.
NG
>> Repair or replace harness between power seat switch (driver side) and lumber support motor.
4.
LUMBER SUPPORT SWITCH INSPECTION
Check continuity between power seat switch connector (driver side)
B144 terminal 14 (B/W) and ground.
OK or NG
OK
>> Check harness and connector.
NG
>> Repair or replace harness between power seat switch (driver side) and ground.
Con-
nector
Terminal
Condition
Continuity
(+)
(–)
B144
3
16
Lumber support switch forward.
Continuity should
exist
14
Lumber support switch backward.
Continuity should
exist
5 (W/
B)
16
Lumber support switch backward.
Continuity should
exist
14
Lumber support switch forward.
Continuity should
exist
PIIB0385E
3 (GY)
−
3 (GY)
:Continuity should exist.
5 (W/B)
−
5 (W/B)
:Continuity should exist.
3 (GY)
−
Ground
:Continuity should not exist.
5 (W/B)
−
Ground
:Continuity should not exist.
PIIA4375E
14 (B/W) – Ground
: Continuity should exist.
PIIA3297E
AUTOMATIC DRIVE POSITIONER
SE-93
C
D
E
F
G
H
J
K
L
M
A
B
SE
Rear Power Seat Turnout Operation Inspection
EIS0042F
1.
CHECK REAR POWER SEAR CONDITION
Front power window main switch operation normally when the power window is operated?
OK or NG
OK
>> GO TO 2.
NG
>> Check the power window system
2.
CHECK REAR POWER SEAT CONTROL UNIT HARNESS
1.
Turn ignition switch OFF.
2.
Disconnect rear LH door control unit connector and rear power
seat control unit LH connector.
3.
Check continuity between rear LH door control unit connector
B163 terminal 18 (BR/W) and rear power seat control unit LH
connector D58 terminal 12 (OR/L).
4.
Check continuity between rear LH door control unit connector
B163 terminal 18 (BR/W) and ground.
OK or NG
OK
>> GO TO 3.
NG
>> Repair or replace harness between ear LH door control unit and rear power seat control unit LH.
3.
CHECK REAR POWER SEAT AUTO RETURN SIGNAL
1.
Connect rear power seat control unit LH connector.
2.
Check voltage between rear LH door control unit connector and
ground.
OK or NG
OK
>> Replace rear power seat control unit LH.
NG
>> Replace rear LH door control unit.
18 (BR/W)
−
12 (OR/L)
:Continuity should exist.
18 (BR/W)
−
Ground
:Continuity should not exist.
PIIA4122E
Connector
Terminals
(Wire color)
Condition
Voltage (V)
(Approx.)
(+)
(–)
D58
12
(OR/L)
Ground
Driver side seat auto
return operation (back
ward)
0
When driver side seat auto
return stops
Battery voltage
PIIA4121E
SE-94
POWER SEAT
POWER SEAT
PFP:87016
System Description
EIS000ZK
The rear power seat (LH / RH) retreats when the auto return cancel switch is turned on and each door is
opened.
When the slide switch turned on, or auto return cancel switch is canceled, an auto return is discontinued.
The LH seat moves backward when the driver seat is moved backward by the auto driving position system.
Refer to
.
Power is all times supplied
●
through 40A fusible link [letter H, located in the fuse block (J/B)],
●
to front power seat passenger side terminal 16, and
●
to rear power seat control unit LH, rear power seat control unit RH terminal 2.
FRONT POWER SEAT (PASSENGER SIDE) OPERATION
When sliding switch is forward, power is supplied
●
through power seat switch terminal 1.
●
to sliding motor terminal 1,
Then ground is supplied
●
to sliding motor terminal 8,
●
through power seat switch terminal 8,
●
through power seat switch terminal 15A,
●
through body grounds B217 and B256.
When power and ground are supplied, front passenger seat slide moves forward.
When sliding switch is backward, power is supplied
●
through power seat switch terminal 8.
●
to sliding motor terminal 8,
Then ground is supplied
●
to sliding motor terminal 1,
●
through power seat switch terminal 1,
●
through power seat switch terminal 15A,
●
through body grounds B217 and B256.
When power and ground are supplied, front passenger seat slide moves backward.
When reclining switch is forward, power is supplied
●
through power seat switch terminal 2.
●
to reclining motor terminal 2,
Then ground is supplied
●
to reclining motor terminal 9,
●
through power seat switch terminal 9,
●
through power seat switch terminal 15A,
●
through body grounds B217 and B256.
When power and ground are supplied, front passenger seat reclining moves forward.
When reclining switch is backward, power is supplied
●
through power seat switch terminal 9.
●
to reclining motor terminal 9,
Then ground is supplied
●
to reclining motor terminal 2,
●
through power seat switch terminal 2,
●
through power seat switch terminal 15A,
●
through body grounds B217 and B256.
When power and ground are supplied, front passenger seat reclining moves backward.
This seat does reclining backward.
When front lifting switch is upward, power is supplied
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