Infiniti QX56 (JA60). Manual — part 823
HEATED SEAT
SE-17
< COMPONENT DIAGNOSIS >
C
D
E
F
G
H
I
K
L
M
A
B
SE
N
O
P
ABJIA0307GB
SE-18
< COMPONENT DIAGNOSIS >
HEATED SEAT
ABJIA0087GB
THIRD SEAT
SE-19
< COMPONENT DIAGNOSIS >
C
D
E
F
G
H
I
K
L
M
A
B
SE
N
O
P
THIRD SEAT
Power Supply and Ground Circuit Check for Third Row Power Folding Seat Control
Unit
INFOID:0000000005147387
Regarding Wiring Diagram information, refer to
1.
CHECK FUSES AND FUSIBLE LINK
Check for blown fuses or fusible link.
Are any fuses or fusible links blown?
YES
>> Install new fuse. Eliminate cause of malfunction if fuse blows again.
NO
>> GO TO 2
2.
POWER SUPPLY CIRCUIT CHECK
1. Disconnect third row power folding seat control unit connectors
B401 and B402.
2. Check voltage between third row power folding seat control unit
harness connectors B401, B402 terminals 1, 8, 13, 14 and
ground.
Are the inspection results normal?
YES
>> GO TO 3
NO
>> Check harness for open between third row power folding seat control unit and fuse or fusible link.
3.
GROUND CIRCUIT CHECK
1. Turn ignition switch OFF.
2. Check continuity between third row power folding seat control
unit harness connector B402 terminals 16, 18, 21 and ground.
Unit
Power source
Fuse or Fusible Link
Location
Third row power folding seat
control unit
Battery
F
Fuse and fusible link box
19
Fuse block (J/B)
Ignition switch ON or START
14
Terminals
Ignition switch position
(+)
(–)
OFF
ON
START
Connector
Terminal
A: B401
1
Ground
Battery
voltage
8
0V
Battery
voltage
B: B402
13
Battery
voltage
14
Battery
voltage
ALJIA0274ZZ
Terminals
Continuity
(+)
(–)
Connector
Terminal
ALJIA0275ZZ
SE-20
< COMPONENT DIAGNOSIS >
THIRD SEAT
Do all terminals have ground?
YES
>> Inspection End.
NO
>> Check harness for ground.
Third Row Power Folding Seat Switch
INFOID:0000000005147388
1.
CHECK THIRD ROW POWER FOLDING SEAT SWITCH OPERATION
1. Turn ignition switch OFF.
2. Disconnect third row power folding seat switch.
3. Check continuity between third row power folding seat switch
terminals 2, 3 and 4.
Do you have continuity?
YES
>> Inspection End.
NO
>> Replace third row power folding seat switch.
Third Row Power Folding Seat Motor
INFOID:0000000005147389
1.
CHECK MOTOR OPERATION
1. Turn ignition switch OFF.
2. Disconnect third row power folding seat motor connector B403
or B426.
3. Check operation by applying battery voltage to motor terminals 3
and 4.
CAUTION:
• Do not operate motor for more than 3 seconds.
• Be careful not to overheat the harness.
• Third row power folding seat control unit may have to
relearn fold up/down positions after testing.
Does the motor rotate in both directions?
YES
>> GO TO 2.
NO
>> Replace third row power seat motor. Refer to
.
2.
CHECK RESISTANCE IN MOTOR
B402
16
Ground
Yes
18
21
Terminals Condition
Continuity
2
4
Press switch button to fold up.
Yes
3
4
Press switch button to fold down.
Yes
ALJIA0089ZZ
LH (60%) seat
Terminal
Motor
Seat
3 (Battery positive) - 4 (Battery negative) Rotates counter-clockwise
Up
4 (Battery positive) - 3 (Battery negative)
Rotates clockwise
Down
AWJIA0359ZZ
RH (40%) seat
Terminal
Motor
Seat
3 (Battery positive) - 4 (Battery negative) Rotates counter-clockwise
Down
4 (Battery positive) - 3 (Battery negative)
Rotates clockwise
Up
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