diagram INFINITI QX56 2010 Factory Service Manual

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BODY INTERIOR
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SECTION SE
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CONTENTS
SEAT
BASIC INSPECTION ....... .............................3
DIAGNOSIS AND REPAIR WORKFLOW ..... .....3
Work Flow ........................................................... ......3
INSPECTION AND ADJUSTMENT .....................5
Preliminary Check ............................................... ......5
FUNCTION DIAGNOSIS ...............................6
THIRD ROW POWER FOLDING SEAT ......... .....6
System Description ............................................. ......6
Component Parts Location ........................................7
Component Description .............................................7
COMPONENT DIAGNOSIS ..........................8
POWER SEAT .....................................................8
Wiring Diagram — Passenger Side — ................ ......8
HEATED SEAT ...................................................12
Description ..............................................................12
Wiring Diagram .......................................................13
THIRD SEAT ......................................................19
Power Supply and Ground Circuit Check for Third
Row Power Folding Seat Control Unit ................. ....
19
Third Row Power Folding Seat Switch ....................20
Third Row Power Folding Seat Motor .....................20
ECU DIAGNOSIS .........................................22
THIRD ROW POWER FOLDING SEAT CON-
TROL UNIT .........................................................
22
Reference Value ................................................. ....22
Wiring Diagram .......................................................24
DTC Index ...............................................................29
Fail Safe ..................................................................30
SYMPTOM DIAGNOSIS ..............................31
THIRD ROW POWER FOLDING SEAT ......... ....31
Symptom Table ................................................... ....31
NONE OF THE THIRD ROW POWER FOLD-
ING SEATS WILL OPERATE WITH ANY
SWITCH. ............................................................
32
None of the Third Row Power Folding Seats Will
Operate With Any Third Row Power Folding Seat
Switch .................................................................. ....
32
ONLY ONE THIRD ROW POWER FOLDING
SEAT WILL OPERATE. ....................................
33
Only One Third Row Power Folding Seat Will Op-
erate .................................................................... ....
33
THIRD ROW POWER FOLDING SEAT WILL
OPERATE IN ONLY ONE DIRECTION. ...........
35
Third Row Power Folding Seat Will Operate in
Only One Direction .............................................. ....
35
THIRD ROW POWER FOLDING SEAT WILL
STOP SHORT OF IT’S FULLY UP OR DOWN
POSITION. .........................................................
37
Third Row Power Folding Seat Stops Short of it's
Fully Up or Down Position .......................................
37
THIRD ROW POWER FOLDING SEAT
MAKES EXCESSIVE NOISE WHILE MOV-
ING. ...................................................................
38
Third Row Power Folding Seat Makes Excessive
Noise While Moving ............................................. ....
38
SQUEAK AND RATTLE TROUBLE DIAG-
NOSES ..............................................................
39
Work Flow ................................................................39
Generic Squeak and Rattle Troubleshooting ...........41
Diagnostic Worksheet ..............................................43
PRECAUTION ..............................................45
PRECAUTIONS .................................................45
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ....
45
Revision: April 20092010 QX56

SE-8
< COMPONENT DIAGNOSIS >
POWER SEAT
COMPONENT DIAGNOSIS
POWER SEAT
Wiring Diagram — Passenger Side —INFOID:0000000005147384
ABJWA0030GB
Revision: April 20092010 QX56

HEATED SEATSE-13
< COMPONENT DIAGNOSIS >
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Wiring DiagramINFOID:0000000005147386
ABJWA0098GB
Revision: April 20092010 QX56

THIRD SEATSE-19
< COMPONENT DIAGNOSIS >
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THIRD SEAT
Power Supply and Ground Circu it Check for Third Row Power Folding Seat Control
Unit
INFOID:0000000005147387
Regarding Wiring Diagram information, refer to SE-24, "Wiring Diagram".
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
TerminalsIgnition switch position
(+) (–) OFF ON START
Connector Terminal
A: B401 1
Ground Battery
voltage
80 VBattery
voltage
B: B402 13
Battery
voltage
14 Battery
voltage
ALJIA0274ZZ
Te r m i n a l s
Continuity
(+)
(–)
Connector Terminal
ALJIA0275ZZ
Revision: April 20092010 QX56

SE-24
< ECU DIAGNOSIS >
THIRD ROW POWER FOLDING SEAT CONTROL UNIT
Wiring Diagram
INFOID:0000000005147391
ABJWA0093GB
Revision: April 20092010 QX56

SE-32
< SYMPTOM DIAGNOSIS >
NONE OF THE THIRD ROW POWER FOLDING SEATS WILL OPERATE WITH
ANY SWITCH.
NONE OF THE THIRD ROW POWE R FOLDING SEATS WILL OPERATE
WITH ANY SWITCH.
None of the Third Row Power Folding Seat s Will Operate With Any Third Row Power
Folding Seat Switch
INFOID:0000000005147395
Regarding Wiring Diagram information, refer to SE-24, "Wiring Diagram".
1.PRELIMINARY CHECK
Perform preliminary check. Refer to SE-5, "
Preliminary Check".
Are inspection results normal?
YES >> GO TO 2.
NO >> Perform repairs as necessary.
2.THIRD ROW POWER FOLDING SEAT SWITCH GROUND
1. Turn ignition switch OFF.
2. Disconnect any third row power folding seat switch connector.
3. Check continuity between third row power folding seat switch harness connector terminal 4 and ground.
Is there continuity?
YES >> GO TO 3.
NO >> Repair ground circuit.
3.TRANSMISSION RANGE SWITCH SIGNAL
1. Confirm A/T selector lever is in PARK position.
2. Turn ignition switch ON.
3. Check voltage between third row power folding seat control unit harness connector B401 terminal 7 and ground.
Is there battery voltage?
YES >> Replace third row power folding seat control unit. Refer to SE-60, "Power seat cross beam".
NO >> Repair circuit as necessary.
ALJIA0116ZZ
Terminals Ignition switch
(+)
(-)ON
Third row power
folding seat
control unit Te r m i n a l N o .
B401 7Ground Battery voltage
ALJIA0278ZZ
Revision: April 20092010 QX56

ONLY ONE THIRD ROW POWER FOLDING SEAT WILL OPERATE.SE-33
< SYMPTOM DIAGNOSIS >
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ONLY ONE THIRD ROW POWER FOLDING SEAT WILL OPERATE.
Only One Third Row Power Folding Seat Will OperateINFOID:0000000005147396
Regarding Wiring Diagram information, refer to SE-24, "Wiring Diagram".
1.PRELIMINARY CHECK
Perform preliminary check. Refer to SE-5, "
Preliminary Check".
Are inspection results normal?
YES >> GO TO 2.
NO >> Perform repairs as necessary.
2.THIRD ROW POWER FOLDING SEAT
Determine which seat is malfunctioning.
Is the affected seat the LH (60%) side?
YES >> GO TO 3.
NO >> GO TO 4.
3.THIRD ROW POWER FOLDING SEAT SWITCH (DRIVER)
1. Turn ignition switch OFF.
2. Disconnect either the front or rear third row power folding seat switch driver side connector.
3. Check continuity between the third row power folding seat switch driver side harness connector B164 or B165 terminal 4
and ground.
4. Check continuity between any third row power folding seat switch driver side harness connector B164 or B165 terminal 2, 3
and third row power folding seat control unit harness connector
B401 terminals 4, 12.
Are inspection results normal?
YES >> GO TO 5.
NO >> Repair circuits as necessary.
4.THIRD ROW POWER FOLDING SEAT SWITCH (PASSENGER)
1. Turn ignition switch OFF.
2. Disconnect either the front or rear third row power folding seat switch passenger side connector.
Te r m i n a l s
Continuity
(+)
(-)
Third row power
folding seat
switch driver side Te r m i n a l N o .
B164 or B165 4Ground Yes
ALJIA0116ZZ
Terminals Continuity
AB
Connector Terminal Connector Terminal
B401 4
B164 or B165 3
Ye s
12 2
AWJIA0245ZZ
Revision: April 20092010 QX56

THIRD ROW POWER FOLDING SEAT WILL OPERATE IN ONLY ONE DIREC-TION.
SE-35
< SYMPTOM DIAGNOSIS >
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THIRD ROW POWER FOLDING SEAT WI LL OPERATE IN ONLY ONE DI-
RECTION.
Third Row Power Folding Seat Will Operate in Only One DirectionINFOID:0000000005147397
Regarding Wiring Diagram information, refer to SE-24, "Wiring Diagram".
1.PRELIMINARY CHECK
Perform preliminary check. Refer to SE-5, "
Preliminary Check".
Are inspection results normal?
YES >> GO TO 2.
NO >> Perform repairs as necessary.
2.THIRD ROW POWER FOLDING SEAT
Determine which seat is malfunctioning.
Is the affected seat the LH (60%) side?
YES >> GO TO 3.
NO >> GO TO 4.
3.THIRD ROW POWER FOLDING SEAT SWITCH (DRIVER)
1. Turn ignition switch OFF.
2. Disconnect any third row power folding seat switch driver side connector.
3. Check continuity between third row power folding seat switch driver side harness connector B164 or B165 terminal 2, 3 and
third row power folding seat control unit harness connector B401
terminals 4, 12.
Is there continuity?
YES >> Replace third row power folding seat control unit. Refer to SE-60, "Power seat cross beam".
NO >> Repair circuits as necessary.
4.THIRD ROW POWER FOLDING SEAT SWITCH (PASSENGER)
1. Turn ignition switch OFF.
2. Disconnect either the front or rear third row power folding seat switch passenger side connector.
3. Check continuity between third row power folding seat switch passenger side harness connector B162 or B163 terminals 2, 3
and third row power folding seat control unit harness connector
B401 terminals 3, 11.
Is there continuity?
YES >> Replace third row power folding seat control unit. Refer to SE-60, "Power seat cross beam"
TerminalsContinuity
AB
Connector Terminal Connector Terminal
B401 4
B164 or B165 3
Ye s
12 2
AWJIA0247ZZ
Terminals Continuity
AB
Connector Terminal Connector Terminal
B401 3
B162 or B163 3
Ye s
11 2
AWJIA0248ZZ
Revision: April 20092010 QX56

THIRD ROW POWER FOLDING SEAT WILL STOP SHORT OF IT’S FULLY UP
OR DOWN POSITION.
SE-37
< SYMPTOM DIAGNOSIS >
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THIRD ROW POWER FOLDING SEAT WI LL STOP SHORT OF IT’S FULLY
UP OR DOWN POSITION.
Third Row Power Folding Seat Stops Short of it's Fully Up or Down Position
INFOID:0000000005147398
Regarding Wiring Diagram information, refer to SE-24, "Wiring Diagram".
1.PRELIMINARY CHECK
Perform preliminary check. Refer to SE-5, "
Preliminary Check".
Are inspection results normal?
YES >> GO TO 2.
NO >> Perform repairs as necessary.
2.CHECK HISTORY
Check to see if a previous normal seat foldi ng operation was interrupted due to low voltage condition.
Was voltage interrupted?
YES >> Perform learn procedure by operating affected seat until seat reaches full open/closed position.
NO >> GO TO 3.
3.THIRD ROW POWER FOLDING SEAT MOTOR
1. Turn ignition switch OFF.
2. Disconnect third row power folding seat motor harness connec- tor and third row power folding seat control unit harness connec-
tor.
3. Check continuity between third row power folding seat motor
harness connector B403 (LH) or B426 (RH) terminals 1, 2 and
third row power folding seat control unit harness connector ter-
minals 10, 15 (LH) or 9, 15 (RH).
Is there continuity?
YES >> Replace affected third row power folding seat motor. Refer to SE-57, "Exploded View".
NO >> Repair circuits as necessary.
Te r m i n a l s Continuity
Connector Terminal Connector Terminal
A: B401 9 (RH)
C: B426 (RH)
1
Ye s
10 (LH)
C: B403 (LH)
B: B402 15 (LH/RH) C: B426 (RH)
2
C: B403 (LH)
AWJIA0362ZZ
Revision: April 20092010 QX56

SEC-1
BODY EXTERIOR, DOORS, ROOF & VEHICLE SECURITY
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SECTION SEC
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CONTENTS
SECURITY CONTROL SYSTEM
WITH INTELLIGENT KEY SYSTEM
BASIC INSPECTION ....... .............................
4
DIAGNOSIS AND REPAIR WORKFLOW ..... .....4
Work Flow ........................................................... ......4
PRE-INSPECTION FOR DIAGNOSTIC ..............7
Basic Inspection .................................................. ......7
Vehicle Security Operation Check ............................7
INSPECTION AND ADJUSTMENT .....................9
ADDITIONAL SERVICE WHEN REPLACING
CONTROL UNIT .................................................... ......
9
ADDITIONAL SERVICE WHEN REPLACING
CONTROL UNIT : Special Repair Requirement .......
9
ECM RE-COMMUNICATING FUNCTION ............. ......9
ECM RE-COMMUNICATING FUNCTION : De-
scription .....................................................................
9
ECM RE-COMMUNICATING FUNCTION : Spe-
cial Repair Requirement ............................................
9
FUNCTION DIAGNOSIS ..............................10
INTELLIGENT KEY SYSTEM/ENGINE
START FUNCTIO N ........................................ ....
10
System Diagram .................................................. ....10
System Description .................................................10
Component Parts Location ......................................12
Component Description ...........................................13
INFINITI VEHICLE IMMOBILIZER SYSTEM-
NATS ..................................................................
14
System Diagram .................................................. ....14
System Description .................................................14
Component Parts Location ......................................16
Component Description ..........................................16
VEHICLE SECURITY SYSTEM .........................18
System Diagram .................................................. ....18
System Description .................................................18
Component Parts Location .................................. ....19
Component Description ...........................................20
DIAGNOSIS SYSTEM (BCM) ...........................21
COMMON ITEM ..................................................... ....21
COMMON ITEM : CONSULT-III Function (BCM -
COMMON ITEM) .....................................................
21
IMMU ...................................................................... ....21
IMMU : CONSULT-III Function (BCM - IMMU) ........22
THEFT ALM ........................................................... ....22
THEFT ALM : CONSULT-III Function (BCM -
THEFT ALM) ....................................................... ....
22
DIAGNOSIS SYSTEM (INTELLIGENT KEY
UNIT) .................................................................
24
CONSULT-III Function (INTELLIGENT KEY) ..........24
COMPONENT DIAGNOSIS .........................26
U1000 CAN COMM CIRCUIT ...........................26
Description ........................................................... ....26
DTC Logic ................................................................26
Diagnosis Procedure ...............................................26
U1010 CONTROL UNIT (CAN) .........................27
Description ...............................................................27
DTC Logic ................................................................27
Diagnosis Procedure ...............................................27
Special Repair Requirement ....................................27
B2013 ID DISCORD I-KEY-STRG ....................28
Description ...............................................................28
DTC Logic ................................................................28
Diagnosis Procedure ...............................................28
B2190 NATS ANTENNA AMP. .........................31
Description ...............................................................31
DTC Logic ................................................................31
Diagnosis Procedure ...............................................31
Revision: April 20092010 QX56