2010 INFINITI QX56 service

RF-1
BODY EXTERIOR, DOORS, ROOF & VEHICLE SECURITY
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SECTION RF
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CONTENTS
ROOF
BASIC INSPECTION ....... .............................3
DIAGNOSIS AND REPAIR WORKFLOW ..... .....3
Work Flow ........................................................... ......3
INSPECTION AND ADJUSTMENT .....................5
ADDITIONAL SERVICE WHEN REPLACING
CONTROL UNIT .................................................... ......
5
ADDITIONAL SERVICE WHEN REPLACING
CONTROL UNIT : Description ..................................
5
ADDITIONAL SERVICE WHEN REPLACING
CONTROL UNIT : Special Repair Requirement .......
5
BASIC INSPECTION ...................................................5
BASIC INSPECTION : Spec ial Repair Require-
ment .................................................................... ......
5
FUNCTION DIAGNOSIS ...............................6
SUNROOF SYSTEM ...................................... .....6
System Diagram ................................................. ......6
System Description ...................................................6
Component Parts Location ......................................7
Component Description ............................................7
DIAGNOSIS SYSTEM (BCM) .............................8
COMMON ITEM ..................................................... ......8
COMMON ITEM : CONSULT-III Function (BCM -
COMMON ITEM) .......................................................
8
RETAINED PWR .........................................................8
RETAINED PWR : CONSULT-III Function (BCM -
RETAINED PWR) .....................................................
9
COMPONENT DIAGNOSIS .........................10
POWER SUPPLY AND GROUND CIRCUIT .. ....10
SUNROOF MOTOR ASSEMBLY .......................... ....10
SUNROOF MOTOR ASSEMBLY :
Diagnosis Procedure ..............................................
10
SUNROOF MOTOR ASSEMBLY : Special Repair
Requirement ........................................................ ....
11
SUNROOF SWITCH CIRCUIT ..........................12
Description ...............................................................12
Component Function Check ..................................12
Diagnosis Procedure ...............................................12
DOOR SWITCH .................................................14
Description ...............................................................14
Component Function Check ..................................14
Diagnosis Procedure ...............................................14
ECU DIAGNOSIS .........................................17
BCM (BODY CONTROL MODULE) .................17
Reference Value .................................................. ....17
Terminal Layout .......................................................20
Physical Values ................................................... ....20
Wiring Diagram ........................................................26
Fail Safe ..................................................................30
DTC Inspection Priority Chart ...............................31
DTC Index ...............................................................31
SUNROOF SYSTEM .........................................33
Reference Value ......................................................33
Wiring Diagram ........................................................34
SYMPTOM DIAGNOSIS ..............................39
SUNROOF DOES NOT OPERATE PROPER-
LY ......................................................................
39
Diagnosis Procedure ........................................... ....39
AUTO OPERATION DOES NOT OPERATE ....40
Diagnosis Procedure ...............................................40
DOES NOT STOP FULLY-OPEN OR FULLY-
CLOSED POSITION ..........................................
41
Diagnosis Procedure ...............................................41
Revision: April 20092010 QX56

RF-2
RETAINED POWER OPERATION DOES NOT
OPERATE PROPERLY .....................................
42
Diagnosis Procedure ........................................... ...42
SUNROOF DOES NOT OPERATE ANTI-
PINCH FUNCTION .......................................... ...
43
Diagnosis Procedure ........................................... ...43
SQUEAK AND RATTLE TROUBLE DIAG-
NOSES ...............................................................
44
Work Flow ............................................................ ...44
Generic Squeak and Rattle Troubleshooting ..........46
Diagnostic Worksheet .............................................48
PRECAUTION .............................................50
PRECAUTIONS .............................................. ...50
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" .............................................................. ...
50
Precaution Necessary for Steering Wheel Rota-
tion After Battery Disconnect ..................................
50
Precaution ...............................................................51
PREPARATION ..........................................52
PREPARATION .............................................. ...52
Special Service Tool ............................................ ...52
Commercial Service Tool ........................................52
ON-VEHICLE REPAIR ...............................53
SUNROOF SYSTEM ...................................... ...53
Inspection ............................................................. ...53
Exploded View ........................................................56
Removal and Installation .........................................57
Revision: April 20092010 QX56

INSPECTION AND ADJUSTMENTRF-5
< BASIC INSPECTION >
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INSPECTION AND ADJUSTMENT
ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT
ADDITIONAL SERVICE WHEN REPL ACING CONTROL UNIT : Description
INFOID:0000000005147269
MEMORY RESET PROCEDURE
1. Please observe the following instructi ons at confirming the sunroof operation.
NOTE:
Do not disconnect the electronic power while the sunroof is operating or within 5 seconds after the sunroof
stops. (to wipe-out the memory of lid position and operating friction.)
2. Initialization of system should be conducted after the following conditions.
• When the sunroof motor is changed.
• When the sunroof does not operate normally. (Incomplete initialization conditions)
ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : Special Repair Re-
quirement
INFOID:0000000005147270
INITIALIZATION PROCEDURE
If the sunroof does not close or open automatically, us e the following procedure to return sunroof operation to
normal.
1. Turn ignition switch ON.
2. Push and hold the sunroof tilt switch in the forw ard (DOWN) position until the sunroof is fully closed.
3. After the sunroof has closed all the way, push and hold the tilt switch forward (DOWN) again for more than 2 seconds to re-learn motor position.
4. Initialization is complete if the sunroof operates normally.
BASIC INSPECTION
BASIC INSPECTION : Special Repair RequirementINFOID:0000000005147271
BASIC INSPECTION
1.INSPECTION START
1. Check the service history.
2. Check the following parts.
• Fuse/circuit breaker blown.
• Poor connection, open or short circuit of harness connector.
• Battery voltage.
Is the inspection result normal?
YES >> Inspection End.
NO >> Repair or replace the malfunctioning parts.
Revision: April 20092010 QX56

POWER SUPPLY AND GROUND CIRCUITRF-11
< COMPONENT DIAGNOSIS >
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1. Connect BCM connector M20.
2. Turn ignition switch ON.
3. Check voltage between BCM connector M20 and ground.
Is the voltage reading as specified?
YES >> Check condition of harness and connector.
NO >> Replace BCM. Refer to BCS-59, "
Removal and Installation".
4. CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Check continuity between sunroof motor assembly connector R4 terminal 7 and ground.
Is the continuity test result as specified?
YES >> Power supply and ground circuits are OK.
NO >> Repair or replace harness.
SUNROOF MOTOR ASSEMBLY : Special Repair RequirementINFOID:0000000005147279
1. PERFORM INITIALIZATION PROCEDURE
Perform initialization procedure.
Refer to RF-5, "
ADDITIONAL SERVICE WHEN REPLACING CO NTROL UNIT : Special Repair Requirement".
Does the sunroof motor assembly operate properly?
YES >> Repair is complete.
NO >> Check fitting adjustment.
(+) (–) Voltage
Connector Terminal
M20 68
Ground Battery voltage
69
ALKIA0871ZZ
Connector Terminal—Continuity
R4 7Ground Yes
ALKIA0869ZZ
Revision: April 20092010 QX56

RF-40
< SYMPTOM DIAGNOSIS >
AUTO OPERATION DOES NOT OPERATE
AUTO OPERATION DOES NOT OPERATE
Diagnosis ProcedureINFOID:0000000005147296
1. PERFORM INITIALIZATION PROCEDURE
Perform initialization procedure.
Refer to RF-5, "
ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : Special Repair Requirement".
Is the inspection result normal?
>> Check intermittent incident. Refer to GI-38, "Intermittent Incident".
Revision: April 20092010 QX56

DOES NOT STOP FULLY-OPEN OR FULLY-CLOSED POSITION
RF-41
< SYMPTOM DIAGNOSIS >
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DOES NOT STOP FULLY-OPEN OR FULLY-CLOSED POSITION
Diagnosis ProcedureINFOID:0000000005147297
1. PERFORM INITIALIZATION PROCEDURE
Perform initialization procedure.
Refer to RF-5, "
ADDITIONAL SERVICE WHEN REPLACING CO NTROL UNIT : Special Repair Requirement".
Is the inspection result normal?
>> Check intermittent incident. Refer to GI-38, "Intermittent Incident".
Revision: April 20092010 QX56

SUNROOF DOES NOT OPERATE ANTI-PINCH FUNCTIONRF-43
< SYMPTOM DIAGNOSIS >
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SUNROOF DOES NOT OPERATE ANTI-PINCH FUNCTION
Diagnosis ProcedureINFOID:0000000005147299
1. PERFORM INITIALIZATION PROCEDURE
Perform initialization procedure.
Refer to RF-5, "
ADDITIONAL SERVICE WHEN REPLACING CO NTROL UNIT : Special Repair Requirement".
Is the inspection result normal?
>> Check intermittent incident. Refer to GI-38, "Intermittent Incident".
Revision: April 20092010 QX56

RF-44
< SYMPTOM DIAGNOSIS >
SQUEAK AND RATTLE TROUBLE DIAGNOSES
SQUEAK AND RATTLE TROUBLE DIAGNOSES
Work FlowINFOID:0000000005286313
CUSTOMER INTERVIEW
Interview the customer if possible, to determine the conditions that exist when the noise occurs.Use the Diag-
nostic Worksheet during the interview to document the facts and conditions when the noise occurs and any
customer's comments; refer to RF-48, "
Diagnostic Worksheet". This information is necessary to duplicate the
conditions that exist when the noise occurs.
• The customer may not be able to provide a detailed description or the location of the noise. Attempt to obtain all the facts and conditions that exist w hen the noise occurs (or does not occur).
• If there is more than one noise in the vehicle, be sure to diagnose and repair the noise that the customer is
concerned about. This can be accomplished by test driving the vehicle with the customer.
• After identifying the type of noise, isolate the noise in terms of its characteristics. The noise characteristics
are provided so the customer, service adviser and technician are all speaking the same language when
defining the noise.
• Squeak —(Like tennis shoes on a clean floor)
Squeak characteristics include the light contact/fa st movement/brought on by road conditions/hard sur-
faces=higher pitch noise/softer surfaces=l ower pitch noises/edge to surface=chirping
• Creak—(Like walking on an old wooden floor)
Creak characteristics include firm contact/slow mo vement/twisting with a rotational movement/pitch depen-
dent on materials/often brought on by activity.
• Rattle—(Like shaking a baby rattle)
Rattle characteristics include the fast repeated contac t/vibration or similar movement/loose parts/missing
clip or fastener/incorrect clearance.
• Knock —(Like a knock on a door)
Knock characteristics include hollow sounding/someti mes repeating/often brought on by driver action.
• Tick—(Like a clock second hand) Tick characteristics include gentle contacting of light materials/loose components/can be caused by driver
action or road conditions.
• Thump—(Heavy, muffled knock noise) Thump characteristics include softer k nock/dead sound often brought on by activity.
• Buzz—(Like a bumble bee)
Buzz characteristics include hi gh frequency rattle/firm contact.
• Often the degree of acceptable noise level will vary depending upon the person. A noise that you may judge as acceptable may be very irritating to the customer.
• Weather conditions, especially humidity and temperat ure, may have a great effect on noise level.
DUPLICATE THE NOISE AND TEST DRIVE
If possible, drive the vehicle with the customer until the noise is duplicated. Note any additional information on
the Diagnostic Worksheet regarding the conditions or lo cation of the noise. This information can be used to
duplicate the same conditions when you confirm the repair.
SBT842
Revision: April 20092010 QX56