Infiniti QX56 (JA60). Manual — part 820
INSPECTION AND ADJUSTMENT
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< BASIC INSPECTION >
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INSPECTION AND ADJUSTMENT
Preliminary Check
INFOID:0000000005147380
1.
FOREIGN OBJECTS
Check the following:
• objects on or behind the seats that could cause binding
• objects under the seats that may be interfering with the seat’s moving parts
Are there any foreign objects that could be causing interference with the seats?
YES
>> Remove objects.
NO
>> GO TO 2.
2.
WIRING CONNECTIONS
1. Disconnect third row power folding seat control unit and seat motor harness connectors.
2. Check terminals for damage or loose connections.
3. Reconnect harness connectors.
Are any connectors damaged or loose?
YES
>> Repair or replace damaged parts.
NO
>> GO TO 3.
3.
POWER AND GROUND
Check power supply and ground circuits for third row power folding seat control unit. Refer to
Supply and Ground Circuit Check for Third Row Power Folding Seat Control Unit"
Is the inspection result normal?
YES
>> Refer to
NO
>> Repair or replace as necessary.
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< FUNCTION DIAGNOSIS >
THIRD ROW POWER FOLDING SEAT
FUNCTION DIAGNOSIS
THIRD ROW POWER FOLDING SEAT
System Description
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The third row power folding seat system is capable of allowing a user to fold up or down either the left or right
third row seat using a set of front or rear mounted switches.
THIRD ROW POWER FOLDING SEAT CONTROL UNIT
The third row power folding seat control unit is located in the control
unit/cross beam assembly underneath the LH third row seat. It
receives signals from the third row power folding seat switches, TCM
and the Hall effect switches mounted in the LH and RH seat motors.
The control unit has self-diagnosis capability through chime codes
and may be accessed by turning the ignition switch ON and OFF
three times. The control unit drives the LH and RH seat motors to
fold them up and down.
THIRD ROW POWER FOLDING SEAT SWITCH
The third row power folding seat switches are located in pairs on the
luggage side finisher RH. A switch must be held in order for the seat
to move.
THIRD ROW POWER FOLDING SEAT MOTORS
The third row power folding seat motors are located in the seat
motor/hinge assembly. There are two motors, one for LH and one
for RH seat folding operations. Power and ground are provided to
the motors by the third row power folding seat control unit. The con-
trol unit reverses polarity to the motors to raise or lower the seat.
The motors also contain Hall effect switches. These switches send
signals back to the control unit which help it determine fully open and
closed positions.
ALJIA0085ZZ
ALJIA0086ZZ
ALJIA0087ZZ
THIRD ROW POWER FOLDING SEAT
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< FUNCTION DIAGNOSIS >
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Component Parts Location
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Component Description
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ALJIA0088ZZ
1.
Third row power folding seat
control unit B401, B402
2.
A/T assembly F9
3.
Third row power folding seat switches
A: Third row power folding seat switch passenger side (front) B162
B: Third row power folding seat switch driver side (front) B164
C: Third row power folding seat switch passenger side (rear) B163
D: Third row power folding seat switch driver side (rear) B165
4.
Third row power folding seat
motors
A: RH (40%) seat B426
B: LH (60%) seat B403
Component
Function
Third row power folding seat control unit
• Receive inputs from third row power folding seat switches and A/T assembly (trans-
mission range switch)
• Drive third row power folding seat motors
• Performs self-diagnostics
A/T assembly
Provide transmission range switch signal to third row power folding seat control unit
Third row power folding seat switches
Provide fold up/fold down ground signals to third row power folding seat control unit
Third row power folding seat motors
• Fold seats up and down
• Provide feedback signals to third row power folding seat control unit
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< COMPONENT DIAGNOSIS >
POWER SEAT
COMPONENT DIAGNOSIS
POWER SEAT
Wiring Diagram — Passenger Side —
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ABJWA0030GB
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