Infiniti F50. Manual — part 779
POWER SEAT
SE-107
C
D
E
F
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J
K
L
M
A
B
SE
Work Flow
EIS003UX
1.
Check the symptom and customer's requests.
2.
Understand the outline of system. Refer to
.
3.
According to the trouble diagnosis chart, repair or replace the cause of the malfunction. Refer to
"Trouble Diagnoses Symptom Chart"
4.
Does power seat operate normally? YES: GO TO 5, NO: GO TO 4.
5.
INSPECTION END.
Trouble Diagnoses Symptom Chart
EIS003UY
●
Check that other systems using the signal of the following systems operate normally.
36
LG/R
Cancel switch sig-
nal
OFF
Cancel switch ON with rear
door (RH) open
5
Cancel switch ON with rear
door (RH) close
0
Cancel switch CANCEL
0
43
GY/R
Rear door switch
(RH) signal
OFF
Rear door RH) open (ON)
0
Rear door (RH) close (OFF)
Battery voltage
74
G/R
Ground (sensor
system)
ON
—
0
TERMI-
NAL
WIRE
COLOR
ITEM
Ignition
switch
CONDITION
Voltage (V)
(Approx.)
Symptom
Diagnoses / service procedure
Refer to page
Front power seat passenger side and rear power seat LH, RH
do not operate.
Power seat power supply circuit inspection
Front power seat passenger side does not operate, but rear
power seat is operated.
Front power seat passenger side switch circuit
inspection
Front power seat passenger side does not do the sliding.
Front power seat passenger side sliding circuit
inspection
Front power seat passenger side does not do the reclining.
Front power seat passenger side reclining cir-
cuit inspection
Front power seat passenger side front does not do the front lift-
ing.
Front power seat passenger side front rifting
circuit inspection
Front power seat passenger side rear does not do the rear lift-
ing.
Front power seat passenger side rear rifting
circuit inspection
Rear power seat LH or RH sliding switch does not operate
moreover, does not turnout/return function if the door is
opened. (With heated seat)
1. Rear power seat power supply ground cir-
cuit inspection (With heated seat)
2. Rear power seat sliding motor circuit inspec-
tion (With heated seat)
3. Replace rear power seat sliding motor
—
Rear power seat LH or RH does not operate but turnout/return
function when the door is opened. (With heated seat)
Rear power seat switch circuit inspection (With
heated seat)
Rear power seat LH and RH turnout/return function do not
operate but operate in sliding switch. (With heated seat)
Auto return cancel switch circuit inspection 2
(With heated seat)
Rear power seat LH or RH turnout/return function does not
operated but operates by a sliding switch. (With heated seat)
1. Rear door switch circuit inspection (With
heated seat)
2. Auto return cancel switch circuit inspection
1 (With heated seat)
3. Rear power seat sliding sensor circuit
inspection (With heated seat)
4. Replace rear power seat control unit
—
SE-108
POWER SEAT
Rear power seat LH or RH sliding switch does not operate
moreover, turnout/return function does not operate if the door
is opened (Without heated seat)
1. Rear power seat power supply and ground
circuit inspection (Without heated seat)
2. Rear power seat sliding motor circuit inspec-
tion (Without heated seat)
3. Replace rear power seat sliding motor
—
Rear power seat LH or RH does not operate but turnout/return
function operates when the door is opened (Without heated
seat)
Rear power seat switch circuit inspection
(Without heated seat)
Rear power seat LH and RH turnout/return function do not
operate, but the operate by sliding switch (Without heated
seat)
Auto return cancel switch circuit inspection 2
(Without heated seat)
Rear power seat LH or RH turnout/return function does not
operate, but operates by a sliding switch (Without heated seat)
1. Rear door switch circuit inspection (Without
heated seat)
2. Auto return cancel switch circuit inspection
1 (Without heated seat)
3. sliding sensor circuit inspection (Without
heated seat)
4. Replace rear power seat control unit.
—
Symptom
Diagnoses / service procedure
Refer to page
POWER SEAT
SE-109
C
D
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G
H
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K
L
M
A
B
SE
Power Seat Switch Circuit Inspection
EIS003UZ
1.
CHECK FUSIBLE LINK
Check 40A fusible link (letter H located in the fuse and fusible link box).
NOTE:
Refer to
SE-97, "Component Parts and Harness Connector Location"
OK or NG
OK
>> GO TO 2.
NG
>> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse, refer to
97, "Component Parts and Harness Connector Location"
2.
CHECK POWER SEAT POWER SUPPLY CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect front power seat passenger side switch connector.
3.
Check voltage between front power seat passenger side switch
connector B342 terminal 16 (P) and ground.
OK or NG
OK
>> Check the condition of the harness and connector.
NG
>> Repair or replace harness between fuse and fusible link
box and front power seat passenger side switch.
Front Power Seat Passenger Side Power Supply Circuit Inspection
EIS003V0
1.
CHECK FRONT POWER SEAT PASSENGER SIDE POWER SUPPLY CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect front power seat passenger side switch connector.
3.
Check voltage between front power seat passenger side switch
connector B342 terminal 16 (P) and ground.
OK or NG
OK
>> GO TO 2.
NG
>> Repair or replace harness between fuse and fusible link
box and front power seat passenger side switch.
16 (P)
−
Ground
:Battery voltage
PIIA3963E
16 (P)
−
Ground
: Battery voltage
PIIA3963E
SE-110
POWER SEAT
2.
CHECK POWER SEAT SWITCH
1.
Connect front power seat passenger side switch connector.
2.
Check continuity between front power seat passenger side
switch connector.
OK or NG
OK
>> GO TO 3.
NG
>> Replace front power seat passenger side switch.
3.
CHECK FRONT POWER SEAT PASSENGER SIDE GROUND CIRCUIT
1.
Disconnect front power seat passenger side switch connector.
2.
Check continuity between front power seat passenger side
switch connector B342 terminal 15A (B) and ground.
OK or NG
OK
>> Check connector.
NG
>> Repair or replace harness between front power seat
passenger side switch and ground.
Front Power Seat (Passenger Side) Sliding Circuit Inspection
EIS003V1
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.
Terminal
Condition
Continuity
16
15A
Sliding switch turn forward and backward.
YES
Reclining switch turn forward and backward.
YES
Lifting switch (front) fully up and fully down.
YES
Lifting switch (rear) fully up and fully down.
YES
Other than above
NO
PIIB0384E
15A (B)
−
Ground
:Continuity should exist.
PIIA3965E
Terminal
Condition
Continuity
1
15A
Sliding switch backward.
YES
16
Sliding switch forward.
YES
15A, 16
Other than above.
NO
8
15A
Sliding switch forward.
YES
16
Sliding switch backward.
YES
15A, 16
Other than above.
NO
PIIA3967E
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