Air INFINITI QX56 2010 Factory Service Manual

DEF-44
< PRECAUTION >
PRECAUTIONS
5. When the repair work is completed, return the ignition switch to the ″LOCK ″ position before connecting
the battery cables. (At this time, the steering lock mechanism will engage.)
6. Perform a self-diagnosis check of a ll control units using CONSULT-III.
Handling for Adhesive and PrimerINFOID:0000000005146856
• Do not use an adhesive which is past its usable date. Shel f life of this product is limited to six months after
the date of manufacture. Carefully adhere to the expiration or manufacture date printed on the box.
• Keep primers and adhesive in a cool, dry place. Ideally, they should be stored in a refrigerator.
• Open the seal of the primer and adhesive just before application. Discard the remainder.
• Before application, be sure to shake the primer container to stir the contents. If any floating material is found, do not use it.
• If any primer or adhesive contacts the skin, wipe it off with gasoline or equivalent and wash the skin with
soap.
• When using primer and adhesive, always observe the precautions in the instruction manual.
Revision: April 20092010 QX56

REAR WINDOW DEFOGGERDEF-45
< ON-VEHICLE REPAIR >
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ON-VEHICLE REPAIR
REAR WINDOW DEFOGGER
Filament CheckINFOID:0000000005146857
1. When measuring voltage, wrap tin foil around the top of the neg- ative probe.Then press the foil against the wire with your finger.
2. Attach probe circuit tester (in Volt range) to middle portion of each filament.
3. If a filament is burned out, circuit tester registers 0 or battery voltage.
4. To locate burned out point, move probe to left and right along fil- ament. Test needle will swing abruptly when probe passes the
point.
Filament RepairINFOID:0000000005146858
REPAIR EQUIPMENT
• Conductive silver composition (DuPont No. 4817 or equivalent)
• Ruler 30 cm (11.8 in) long
SEL122R
SEL263
SEL265
Revision: April 20092010 QX56

DEF-46
< ON-VEHICLE REPAIR >
REAR WINDOW DEFOGGER
• Drawing pen
• Heat gun
• Alcohol
• Cloth
REPAIRING PROCEDURE
1. Wipe broken heat wire and its surrounding area clean with acloth dampened in alcohol.
2. Apply a small amount of conductive silver composition to tip of drawing pen.
Shake silver composition container before use.
3. Place ruler on glass along broken line. Deposit conductive silver composition on break with drawing pen. Slightly overlap existing
heat wire on both sides [preferably 5 mm (0.20 in)] of the break.
4. After repair has been completed, check repaired wire for conti- nuity. This check should be conducted 10 minutes after silver
composition is deposited.
Do not touch repaired area while test is being conducted.
5. Apply a constant stream of hot air directly to the repaired area for approximately 20 minutes with a heat gun. A minimum dis-
tance of 3 cm (1.2 in) should be kept between repaired area and
hot air outlet.
If a heat gun is not available, let the repaired area dry for 24
hours.
PIIA0215E
SEL012D
SEL013D
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DLK-1
BODY EXTERIOR, DOORS, ROOF & VEHICLE SECURITY
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CONTENTS
DOOR & LOCK
WITH INTELLIGENT KEY SYSTEM
BASIC INSPECTION ....... .............................
6
DIAGNOSIS AND REPAIR WORKFLOW ..... .....6
Work Flow ........................................................... ......6
INSPECTION AND ADJUSTMENT .....................9
ADDITIONAL SERVICE WHEN REMOVING BAT-
TERY NEGATIVE TERMINAL ............................... ......
9
ADDITIONAL SERVICE WHEN REMOVING
BATTERY NEGATIVE TERMINAL : Description ......
9
ADDITIONAL SERVICE WHEN REMOVING
BATTERY NEGATIVE TERMINAL : Special Re-
pair Requirement ................................................. ......
9
ADDITIONAL SERVICE WHEN REPLACING
CONTROL UNIT .................................................... ......
9
ADDITIONAL SERVICE WHEN REPLACING
CONTROL UNIT : Description ..................................
9
ADDITIONAL SERVICE WHEN REPLACING
CONTROL UNIT : Special Repair Requirement .......
9
FUNCTION DIAGNOSIS ..............................10
AUTOMATIC DOOR LOCKS ......................... ....10
System Diagram .................................................. ....10
System Description .................................................10
Component Parts Location ....................................12
Component Description ..........................................12
DOOR LOCK FUNCTION ..................................14
DOOR LOCK AND UNLOCK SWITCH ................. ....14
DOOR LOCK AND UNLOCK SWITCH : System
Diagram ...................................................................
14
DOOR LOCK AND UNLOCK SWITCH : System
Description ..............................................................
14
DOOR LOCK AND UNLOCK SWITCH :
Component Parts Location ....................................
15
DOOR LOCK AND UNLOCK SWITCH :
Component Description ..........................................
15
DOOR REQUEST SWITCH ................................... ....16
DOOR REQUEST SWITCH : System Diagram .......16
DOOR REQUEST SWITCH : System Description ....16
DOOR REQUEST SWITCH :
Component Parts Location ....................................
19
DOOR REQUEST SWITCH :
Component Description ..........................................
21
INTELLIGENT KEY ................................................ ....21
INTELLIGENT KEY : System Diagram ....................21
INTELLIGENT KEY : System Description ...............21
INTELLIGENT KEY : Component Parts Location ....24
INTELLIGENT KEY : Component Description ........25
BACK DOOR OPENER FUNCTION .................27
BACK DOOR OPENER SWITCH .......................... ....27
BACK DOOR OPENER SWITCH : System Dia-
gram ........................................................................
27
BACK DOOR OPENER SWITCH : System De-
scription ...................................................................
27
BACK DOOR OPENER SWITCH :
Component Parts Location ....................................
32
BACK DOOR OPENER SWITCH :
Component Description ..........................................
32
INTELLIGENT KEY ................................................ ....33
INTELLIGENT KEY : System Diagram ....................33
INTELLIGENT KEY : System Description ...............33
INTELLIGENT KEY : Component Parts Location ....35
INTELLIGENT KEY : Component Description ........36
WARNING FUNCTION ......................................38
System Description ..................................................38
Component Parts Location ....................................42
KEY REMINDER FUNCTION ............................44
System Description ..................................................44
Component Parts Location ....................................45
HAZARD AND BUZZER REMINDER FUNC-
TION ..................................................................
47
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DLK-2
System Diagram .....................................................47
System Description .................................................47
Component Parts Location ...................................48
Component Description .........................................50
HOMELINK UNIVERSAL TRANSCEIVER ........51
Component Description ....................................... ...51
DIAGNOSIS SYSTEM (BCM) ............................52
COMMON ITEM ..................................................... ...52
COMMON ITEM : CONSULT-III Function (BCM -
COMMON ITEM) ................................................. ...
52
DOOR LOCK .......................................................... ...52
DOOR LOCK : CONSULT-III Function (BCM -
DOOR LOCK) .........................................................
53
MULTIREMOTE ENT ............................................. ...53
MULTIREMOTE ENT : CONSULT-III Function
(BCM - MULTIREMOTE ENT) ................................
53
INTELLIGENT KEY ................................................ ...55
INTELLIGENT KEY : CONSULT-III Function
(BCM - INTELLIGENT KEY) ...................................
55
DIAGNOSIS SYSTEM (INTELLIGENT KEY
UNIT) ............................................................... ...
56
CONSULT-III Function (INTELLIGENT KEY) ...... ...56
COMPONENT DIAGNOSIS ........................58
U1000 CAN COMM CIRCUIT ......................... ...58
Description ........................................................... ...58
DTC Logic ...............................................................58
Diagnosis Procedure ..............................................58
U1010 CONTROL UNIT (CAN) .........................59
DTC Logic ............................................................ ...59
Diagnosis Procedure ..............................................59
Special Repair Requirement ...................................59
CENTER CONSOLE AREA ANTENNA
(REAR) ............................................................ ...
60
Description ........................................................... ...60
Component Function Check .................................60
Diagnosis Procedure ..............................................60
LUGGAGE AREA ANTENNA ...........................62
Description ..............................................................62
Component Function Check .................................62
Diagnosis Procedure ..............................................62
CENTER CONSOLE AREA ANTENNA
(FRONT) .............................................................
64
Description ........................................................... ...64
Component Function Check .................................64
Diagnosis Procedure ..............................................64
OVERHEAD CONSOLE AREA ANTENNA ......66
Description ........................................................... ...66
Component Function Check .................................66
Diagnosis Procedure ............................................ ...66
POWER SUPPLY AND GROUND CIRCUIT .....68
INTELLIGENT KEY UNIT ....................................... ...68
INTELLIGENT KEY UNIT : Diagnosis Procedure ...68
BCM (BODY CONTROL MODULE) ..........................68
BCM (BODY CONTROL MODULE) : Diagnosis
Procedure ...............................................................
68
BACK DOOR CONTROL UNIT .............................. ...69
BACK DOOR CONTROL UNIT : Diagnosis Proce-
dure ...................................................................... ...
69
DOOR SWITCH .................................................71
Description ........................................................... ...71
Component Function Check ..................................71
Diagnosis Procedure ...............................................71
DOOR LOCK AND UNLOCK SWITCH .............74
DRIVER SIDE ......................................................... ...74
DRIVER SIDE : Description ....................................74
DRIVER SIDE : Component Function Check ........74
DRIVER SIDE : Diagnosis Procedure .....................74
PASSENGER SIDE ...................................................76
PASSENGER SIDE : Descripti on ...........................76
PASSENGER SIDE :
Component Function Check ............................... ...
76
PASSENGER SIDE : Diagnosis Procedure ............76
KEY CYLINDER SWITCH .................................79
Description ........................................................... ...79
Component Function Check ...................................79
Diagnosis Procedure ...............................................79
FRONT DOOR LOCK ACTUATOR LH (DOOR
UNLOCK SENSOR) ..........................................
81
Description ........................................................... ...81
Component Function Check ..................................81
Diagnosis Procedure ...............................................81
Component Inspection ............................................82
DOOR REQUEST SWITCH ...............................83
Description ..............................................................83
Component Function Check ..................................83
Diagnosis Procedure ...............................................83
Component Inspection ............................................85
DOOR LOCK ACTUATOR ................................86
DRIVER SIDE ......................................................... ...86
DRIVER SIDE : Description ....................................86
DRIVER SIDE : Component Function Check ........86
DRIVER SIDE : Diagnosis Procedure .....................86
PASSENGER SIDE ...................................................87
PASSENGER SIDE : Descripti on ...........................87
PASSENGER SIDE :
Component Function Check ............................... ...
87
PASSENGER SIDE : Diagnosis Procedure ............87
Revision: April 20092010 QX56

DLK-4
Diagnosis Procedure .............................................138
BACK DOOR CLOSE SWITCH SYSTEM .......139
Diagnosis Procedure ........................................... ..139
BACK DOOR SWITCH ....................................140
Diagnosis Procedure ........................................... ..140
CINCH LATCH MOTOR SYSTEM ...................141
Diagnosis Procedure ........................................... ..141
INTELLIGENT KEY UNIT POWER BACK
DOOR INPUT SIGNAL ....................................
142
Description ........................................................... ..142
Diagnosis Procedure .............................................142
INTELLIGENT KEY UNIT POWER BACK
DOOR OUTPUT SIGNAL ................................
143
Description ........................................................... ..143
Diagnosis Procedure .............................................143
HOMELINK UNIVERSAL TRANSCEIVER ......144
Wiring Diagram .................................................... ..144
Description .............................................................145
Component Function Check ................................146
Diagnosis Procedure .............................................146
ECU DIAGNOSIS ..................................... ..148
BCM (BODY CONTROL MODULE) ............... .148
Reference Value .................................................. ..148
Terminal Layout .....................................................151
Physical Values .....................................................151
Wiring Diagram — POWER DOOR LOCK SYS-
TEM — ..................................................................
157
Fail Safe ................................................................170
DTC Inspection Priority Chart .............................171
DTC Index ........................................................... ..171
INTELLIGENT KEY UNIT ................................173
Reference Value .................................................. ..173
Terminal Layout - Intelligent Key Unit ....................174
Physical Values - Intelligent Key Unit ....................174
Terminal Layout - Steering Lock Solenoid ........... ..177
Physical Values - Steering Lock Solenoid .............177
Wiring Diagram — INTELLIGENT KEY SYSTEM
— ...........................................................................
178
Fail Safe ................................................................195
DTC Inspection Priority Chart .............................196
DTC Index ........................................................... ..196
BACK DOOR CONTROL UNIT .......................197
Reference Value .................................................. ..197
Wiring Diagram—AUTOMATIC BACK DOOR
SYSTEM— ............................................................
199
Fail Safe .............................................................. ..209
SYMPTOM DIAGNOSIS ............................210
INTELLIGENT KEY SYSTEM SYMPTOMS ... .210
Symptom Table ................................................... ..210
DOOR LOCK FUNCTION SYMPTOMS ...........211
DOOR LOCK AND UNLOCK SWITCH .................. .211
DOOR LOCK AND UNLOCK SWITCH : Symptom
Table .....................................................................
211
INTELLIGENT KEY ................................................ .212
INTELLIGENT KEY : Symptom Table ..................212
BACK DOOR OPENER FUNCTION ................214
BACK DOOR OPENER SWITCH .......................... .214
BACK DOOR OPENER SWITCH : Symptom Ta-
ble ........................................................................ .
214
BACK DOOR HANDLE .......................................... .214
BACK DOOR HANDLE : Symptom Table .............215
INTELLIGENT KEY ................................................ .215
INTELLIGENT KEY : Symptom Table ..................215
WARNING FUNCTION SYMPTOMS ...............216
Symptom Table .................................................... .216
KEY REMINDER FUNCTION SYMPTOMS .....219
Symptom Table .................................................... .219
HAZARD FUNCTION ..................................... ..220
Symptom Table .................................................... .220
HORN FUNCTION ............................................221
Symptom Table .................................................... .221
HOMELINK UNIVERSAL TRANSCEIVER ......222
Symptom Table .................................................... .222
SQUEAK AND RATTLE TROUBLE DIAG-
NOSES ..............................................................
223
Work Flow ............................................................ .223
Inspection Procedure ............................................225
Diagnostic Worksheet ...........................................227
PRECAUTION ...........................................229
PRECAUTIONS .............................................. ..229
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" .............................................................. .
229
Precaution Necessary for Steering Wheel Rota-
tion After Battery Disconnect ................................
229
Precaution for work ...............................................230
PREPARATION .........................................231
PREPARATION .............................................. ..231
Special Service Tool ............................................ .231
Commercial Service Tool ......................................232
ON-VEHICLE REPAIR ..............................233
HOOD ............................................................. ..233
Fitting Adjustment ................................................ .233
Removal and Installation of Hood Assembly ........234
Revision: April 20092010 QX56

DLK-6
< BASIC INSPECTION >[WITH INTELLIGENT KEY SYSTEM]
DIAGNOSIS AND REPAIR WORKFLOW
BASIC INSPECTION
DIAGNOSIS AND REPAIR WORKFLOW
Work FlowINFOID:0000000005146862
OVERALL SEQUENCE
DETAILED FLOW
JMKIA2270GB
Revision: April 20092010 QX56

DIAGNOSIS AND REPAIR WORKFLOWDLK-7
< BASIC INSPECTION > [WITH INTELLIGENT KEY SYSTEM]
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1.GET INFORMATION FOR SYMPTOM
Get the detailed information from the customer about the symptom (the condition and the environment when
the incident/malfunction occurred).
>> GO TO 2.
2.CHECK DTC
1. Check DTC.
2. Perform the following procedure if DTC is displayed.
- Record DTC and freeze frame data (Print them out with CONSULT-III.)
- Erase DTC.
- Study the relationship between the cause detected by DTC and the symptom described by the customer.
3. Check related service bulletins for information.
Is any symptom described and any DTC detected?
Symptom is described, DTC is displayed >> GO TO 3.
Symptom is described, DTC is not displayed >> GO TO 4.
Symptom is not described, DTC is displayed >> GO TO 5.
3.CONFIRM THE SYMPTOM
Confirm the symptom described by the customer.
Connect CONSULT-III to the vehicle in “DATA MONI TOR” mode and check real time diagnosis results.
Verify relation between the symptom and t he condition when the symptom is detected.
>> GO TO 5.
4.CONFIRM THE SYMPTOM
Confirm the symptom described by the customer.
Connect CONSULT-III to the vehicle in “DATA MONI TOR” mode and check real time diagnosis results.
Verify relation between the symptom and t he condition when the symptom is detected.
>> GO TO 6.
5.PERFORM DTC CONFIRMATION PROCEDURE
Perform DTC Confirmation Procedure for the display ed DTC, and then check that DTC is detected again.
At this time, always connect CONSULT-III to the vehicle, and check diagnostic results in real time.
If two or more DTCs are detected, refer to DLK-171, "
DTCInspectionPriorityChart" and determine trouble
diagnosis order.
NOTE:
• Freeze frame data is useful if the DTC is not detected.
• Perform Component Function Check if DTC Confirmation Procedure is not included in Service Manual. This
simplified check procedure is an effective alternat ive though DTC cannot be detected during this check.
If the result of Component Function Check is NG, it is the same as the detection of DTC by DTC Confirma-
tion Procedure.
Is DTC detected?
YES >> GO TO 7.
NO >> Refer to GI-38, "
Intermittent Incident".
6.DETECT MALFUNCTIONING SYST EM BY SYMPTOM DIAGNOSIS
Detect malfunctioning system according to SYMPTO M DIAGNOSIS based on the confirmed symptom in step
4, and determine the trouble diagnosis order based on possible causes and symptom.
>> GO TO 7.
7.DETECT MALFUNCTIONING PA RT BY DIAGNOSTIC PROCEDURE
Inspect according to Diagnostic Procedure of the system.
NOTE:
Revision: April 20092010 QX56

DLK-8
< BASIC INSPECTION >[WITH INTELLIGENT KEY SYSTEM]
DIAGNOSIS AND REPAIR WORKFLOW
The Diagnostic Procedure described based on open circuit inspection. A short circuit inspection is also
required for the circuit check in the Diagnostic Procedure.
Is malfunctioning part detected?
YES >> GO TO 8.
NO >> Check voltage of related BCM terminals using CONSULT-III.
8.REPAIR OR REPLACE THE MALFUNCTIONING PART
1. Repair or replace the malfunctioning part.
2. Reconnect parts or connectors disconnected during Diagnostic Procedure again after repair and replace- ment.
3. Check DTC. If DTC is displayed, erase it.
>> GO TO 9.
9.FINAL CHECK
When DTC was detected in step 2, perform DTC Confirmation Procedure or Component Function Check
again, and then check that the malfunction have been repaired securely.
When symptom was described from the customer, refer to confirmed symptom in step 3 or 4, and check that
the symptom is not detected.
Does the symptom reappear?
YES (DTC is detected) >> GO TO 7.
YES (Symptom remains) >> GO TO 6.
NO >> Inspection end
Revision: April 20092010 QX56

INSPECTION AND ADJUSTMENTDLK-9
< BASIC INSPECTION > [WITH INTELLIGENT KEY SYSTEM]
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INSPECTION AND ADJUSTMENT
ADDITIONAL SERVICE WHEN REMOVI NG BATTERY NEGATIVE TERMINAL
ADDITIONAL SERVICE WHEN REMOVING BATTERY NEGATIVE TERMINAL : De-
scription
INFOID:0000000005146863
The automatic back door system must be initialized anytime the battery or the automatic back door control unit
has been disconnected.
ADDITIONAL SERVICE WHEN REMOVING BATTERY NEGATIVE TERMINAL : Spe-
cial Repair Requirement
INFOID:0000000005146864
1.INITIALIZATION
1. Close back door.
2. Open the back door with automatic open operation.
NOTE:
Do not stop the automatic operation until back door is fully open.
>> Work end.
ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT
ADDITIONAL SERVICE WHEN REPL ACING CONTROL UNIT : Description
INFOID:0000000005146865
Perform the system initialization when replacing BCM, replacing Intelligent Key or registering an additional
Intelligent Key.
ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : Special Repair Re-
quirement
INFOID:0000000005146866
Refer to the CONSULT-III Operation Manual for the initialization procedure.
Revision: April 20092010 QX56