Infiniti F50. Manual — part 781
POWER SEAT
SE-115
C
D
E
F
G
H
J
K
L
M
A
B
SE
Rear Power Seat Switch Circuit Inspection (With Heated Seat)
EIS003V8
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 check 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
B163 (LH), B363 (RH) terminal 18 (BR/W), 24 (L/G) 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 B162 (LH), B362 (RH) terminal 18 (BR/
W), 24 (L/G) 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.)
(+)
(–)
B162
(LH)
B362
(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
PIIA3983E
LH
18 (BR/W)
−
7 (G/Y)
:Continuity should exist
24 (L/G)
−
8 (OR/L)
:Continuity should exist
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
PIIA3984E
SE-116
POWER SEAT
3.
CHECK REAR POWER SEAT SWITCH
Check continuity between rear power seat switch as follows.
OK or NG
OK
>> GO TO 4.
NG
>> Replace rear power seat switch.
4.
CHECK REAR POWER SEAT SWITCH GROUND CIRCUIT
Check continuity between rear power seat switch connector D55
(LH), D75 (RH) terminal 2 (B) and ground.
OK or NG
OK
>> Replace rear power seat control unit.
NG
>> Repair or replace harness between rear power seat
switch and ground.
Auto Return Cancel Switch Circuit Inspection 1 (With Heated Seat)
EIS003V9
1.
CHECK AUTO RETURN CANCEL SWITCH POWER SUPPLY
1.
Turn ignition switch OFF.
2.
Check voltage between rear power seat control unit connector
and ground.
OK or NG
OK
>> Auto return cancel switch circuit check is OK.
NG
>> GO TO 2.
Terminal
Condition
Continuity
7
2
Rear power seat switch (sliding switch)
backward.
YES
Rear power seat switch (sliding switch)
OFF.
NO
8
2
Rear power seat switch (sliding switch)
forward.
YES
Rear power seat switch (sliding switch)
OFF.
NO
PIIA3985E
2 (B)
−
Ground
:Continuity should exist
PIIA3986E
Con-
nector
Terminal
(Wire color)
Condition
Voltage (V)
(Approx.)
(+)
(–)
B163
(LH),
B363
(RH)
36 (LG/R)
Ground
Auto return cancel switch ON
and, rear door LH open.
5
Other than above.
0
PIIA3987E
POWER SEAT
SE-117
C
D
E
F
G
H
J
K
L
M
A
B
SE
2.
CHECK REAR POWER SEAT SWITCH HARNESS
1.
Disconnect rear power seat control unit connector and auto
return cancel switch connector.
2.
Check continuity between rear power seat control unit connector
B163 (LH), B363 (RH) terminal 36 (LG/R) and auto return cancel
switch connector B504 terminal 1 (BR).
3.
Check continuity between rear power seat control unit connector
B163 (LH), B363 (RH) terminal 36 (LG/R) and ground.
OK or NG
OK
>> Check the condition of the harness and connector.
NG
>> Repair or replace harness between rear power seat control unit and auto return cancel switch.
Auto Return Cancel Switch Circuit Inspection 2 (With Heated Seat)
EIS003VA
1.
CHECK AUTO RETURN CANCEL SWITCH HARNESS
1.
Turn ignition switch OFF.
2.
Disconnect rear power seat control unit connector and auto
return cancel switch connector.
3.
Check continuity between rear power seat control unit connector
B163 (LH), B363 (RH) terminal 36 (LG/R) and auto return cancel
switch connector B504 terminal 1 (BR).
4.
Check continuity between rear power seat control unit connector
B163 (LH), B363 (RH) terminal 36 (LG/R) and ground.
OK or NG
OK
>> GO TO 2.
NG
>> Repair or replace harness between rear power seat control unit and auto return cancel switch.
2.
CHECK AUTO RETURN CANCEL SWITCH
Check continuity between auto cancel switch as follows.
OK or NG
OK
>> GO TO 3.
NG
>> Replace auto return cancel switch.
36 (LG/R)
−
1 (BR)
:Continuity should exist
36 (LG/R)
−
Ground
:Continuity should not exist
PIIA3988E
36 (LG/R)
−
1 (BR)
:Continuity should exist
36 (LG/R)
−
Ground
:Continuity should not exist
PIIA3988E
Terminal
Condition
Continuity
1 (BR)
2 (B)
Auto return cancel switch cancelled.
YES
Auto return cancel switch ON.
NO
PIIA3989E
SE-118
POWER SEAT
3.
CHECK AUTO RETURN CANCEL SWITCH GROUND HARNESS
Check continuity between auto return cancel switch connector B504
terminal 2 (B) and ground.
OK or NG
OK
>> Check the harness and connector.
NG
>> Repair or replace harness between auto return cancel
switch and ground.
Rear Door Switch Circuit Inspection (With Heated Seat)
EIS003VB
1.
CHECK REAR DOOR 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 door switch circuit check is OK.
NG
>> GO TO 2.
2.
CHECK DOOR SWITCH HARNESS
1.
Disconnect rear power seat control unit connector and door lock
assembly (door switch) connector.
2.
Check continuity between rear power seat control unit connector
B163 (LH), B363 (RH) terminal 43 (GY/R) and door lock assem-
bly (door switch) connector D62 (LH), D82(RH) terminal 1 (W).
3.
Check continuity between rear power seat control unit connector
B163 (LH), B363 (RH) terminal 43 (GY/R) and ground.
OK or NG
OK
>> GO TO 3.
NG
>> Repair or replace harness between rear power seat control unit and door lock assembly (door
switch).
2 (B)
−
Ground
:Continuity should exist
PIIA3990E
Con-
nector
Terminal
(Wire color)
Condition
Voltage (V)
(Approx.)
(+)
(–)
B163
(LH),
B363
(RH)
43 (GY/R)
Ground
Rear door open.
0
Rear door closed.
Battery voltage
PIIA3991E
43 (GY/R)
−
1 (BR)
:Continuity should exist
43 (GY/R)
−
Ground
:Continuity should not exist
PIIA3992E
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