2006 INFINITI QX56 instrument panel

WARNING CHIMEDI-43
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Revision: November 2009 2006 QX56
WARNING CHIMEPFP:24814
Component Parts and Harness Connector LocationEKS00BCO
1. Fuse block (J/B)2. Fuse and fusible link box3. Fuse and relay box
4. Combination meter M24 5. Combination switch (lighting switch)
M28 6. BCM M18, M19, M20 (view with
instrument lower panel LH removed)
7. Front door switch LH B8 8. Key switch and key lock solenoid
M27 9. Seat belt buckle pre-tensioner
assembly LH (seat belt buckle
switch) B74
WKIA4594E

DI-72
CLOCK
Revision: November 20092006 QX56
Removal and Installation of ClockEKS00BDE
REMOVAL
1. Remove cluster lid C. Refer to IP-10, "INSTRUMENT PANEL
ASSEMBLY" .
2. Remove screws (3) and remove clock from cluster lid C.
INSTALLATION
Installation is in the reverse order of removal.
LKIA0477E

EC-48Revision: November 2009
ON BOARD DIAGNOSTIC (OBD) SYSTEM
2006 QX56
ON BOARD DIAGNOSTIC (OBD) SYSTEMPFP:00028
IntroductionUBS00KZP
The ECM has an on board diagnostic system, which detects malfunctions related to engine sensors or actua-
tors. The ECM also records various emission-related diagnostic information including:
The above information can be checked using procedures listed in the table below.
×: Applicable —: Not applicable
*: When DTC and 1st trip DTC simultaneously appear on the display, they cannot be clearly distinguished from each other.
The malfunction indicator lamp (MIL) on the instrument panel lights up when the same malfunction is detected
in two consecutive trips (Two trip detection logic), or when the ECM enters fail-safe mode. (Refer to EC-91,
"Fail-safe Chart" .)
Two Trip Detection LogicUBS00KZQ
When a malfunction is detected for the first time, 1st trip DTC and 1st trip Freeze Frame data are stored in the
ECM memory. The MIL will not light up at this stage. <1st trip>
If the same malfunction is detected again during the next drive, the DTC and Freeze Frame data are stored in
the ECM memory, and the MIL lights up. The MIL lights up at the same time when the DTC is stored. <2nd
trip> The “trip” in the “Two Trip Detection Logic ” means a driving mode in which self-diagnosis is performed
during vehicle operation. Specific on board diagnostic items will cause the ECM to light up or blink the MIL,
and store DTC and Freeze Frame data, even in the 1st trip, as shown below.
× : Applicable —: Not applicable
When there is an open circuit on MIL circuit, the ECM cannot warn the driver by lighting up MIL when there is
malfunction on engine control system.
Emission-related diagnostic information Diagnostic service
Diagnostic Trouble Code (DTC) Service $03 of SAE J1979
Freeze Frame data Service $02 of SAE J1979
System Readiness Test (SRT) code Service $01 of SAE J1979
1st Trip Diagnostic Trouble Code (1st Trip DTC) Service $07 of SAE J1979
1st Trip Freeze Frame data
Test values and Test limits Service $06 of SAE J1979
Calibration ID Service $09 of SAE J1979
DTC 1st trip DTCFreeze
Frame data 1st trip Freeze
Frame data SRT code SRT status Test value
CONSULT-II ×× × × × × —
GST ×× × —×××
ECM ××*——— ×—
Items MIL
DTC1st trip DTC
1st trip 2nd trip
1st trip
displaying 2nd trip
displaying 1st trip
displaying 2nd trip
display-
ing
Blinking Lighting
up Blinking Lighting
up
Misfire (Possible three way cata-
lyst damage) — DTC: P0300 -
P0308 is being detected ×
———— — ×—
Misfire (Possible three way cata-
lyst damage) — DTC: P0300 -
P0308 is being detected ——
×—— ×——
One trip detection diagnoses
(Refer to EC-49, "
EMISSION-
RELATED DIAGNOSTIC INFOR-
MATION ITEMS" .) —
×—— ×———
Except above ———×— ×× —

ON BOARD DIAGNOSTIC (OBD) SYSTEMEC-63
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Revision: November 2009 2006 QX56
–Test values
Actual work procedures are explained using a DTC as an example. Be careful so that not only the DTC, but all
of the data listed above, are cleared from the ECM memory during work procedures.
Malfunction Indicator Lamp (MIL)UBS00KZS
DESCRIPTION
The MIL is located on the instrument panel.
1. The MIL will light up when the ignition switch is turned ON with- out the engine running. This is a bulb check.
If the MIL does not light up, refer to DI-31, "
WARNING LAMPS" ,
or see EC-635, "
MIL AND DATA LINK CONNECTOR" .
2. When the engine is started, the MIL should go off. If the MIL remains on, the on board diagnostic system has
detected an engine system malfunction.
ON BOARD DIAGNOSTIC SYSTEM FUNCTION
The on board diagnostic system has the following three functions.
When there is an open circuit on MIL circuit, the ECM cannot warn the driver by lighting up MIL when there is
malfunction on engine control system.
Therefore, when electrical controlled throttle and part of ECM related diagnoses are continuously detected as
NG for 5 trips, ECM warns the driver that engine control system malfunctions and MIL circuit is open by means
of operating fail-safe function.
The fail-safe function also operates when above diagnoses except MIL circuit are detected and demands the
driver to repair the malfunction.
SEF217U
Diagnostic Test
Mode KEY and ENG.
StatusFunction
Explanation of Function
Mode I Ignition switch in
ON position
Engine stopped BULB CHECK
This function checks the MIL bulb for damage (blown,
open circuit, etc.).
If the MIL does not come on, check MIL circuit.
Engine running MALFUNCTION WARNING This is a usual driving condition. When a malfunction is
detected twice in two consecutive driving cycles (two trip
detection logic), the MIL will light up to inform the driver
that a malfunction has been detected.
The following malfunctions will light up or blink the MIL in
the 1st trip.

Misfire (Possible three way catalyst damage)

One trip detection diagnoses
Mode II Ignition switch in
ON position
Engine stopped SELF-DIAGNOSTIC
RESULTS
This function allows DTCs and 1st trip DTCs to be read.
Engine operating condition in fail-safe mode
Engine speed will not rise more than 2,500 rpm due to the fuel cut

EC-64Revision: November 2009
ON BOARD DIAGNOSTIC (OBD) SYSTEM
2006 QX56
MIL Flashing Without DTC
When any SRT codes are not set, MIL may flash without DTC. For the details, refer to EC-57, "How to Display
SRT Status" .
HOW TO SWITCH DIAGNOSTIC TEST MODE
NOTE:

It is better to count the time accurately with a clock.

It is impossible to switch the diagnostic mode when an accelerator pedal position sensor circuit
has a malfunction.

Always ECM returns to Diagnostic Test Mode I after ignition switch is turned OFF.
How to Set Diagnostic Test Mode II (Self-diagnostic Results)
1. Confirm that accelerator pedal is fully released, turn ignition switch ON and wait 3 seconds.
2. Repeat the following procedure quickly five times within 5 seconds.
a. Fully depress the accelerator pedal.
b. Fully release the accelerator pedal.
3. Wait 7 seconds, fully depress the accelerator pedal and keep it for approx. 10 seconds until the MIL starts
blinking.
NOTE:
Do not release the accelerator pedal for 10 seconds if MIL may start blinking on the halfway of this
10 seconds. This blinking is displaying SRT status and is continued for another 10 seconds. For
the details, refer to EC-57, "
How to Display SRT Status" .
4. Fully release the accelerator pedal. ECM has entered to Diagnostic Test Mode II (Self-diagnostic results).
NOTE:
Wait until the same DTC (or 1st trip DTC) appears to confirm all DTCs certainly.
How to Erase Diagnostic Test Mode II (Self-diagnostic Results)
1. Set ECM in Diagnostic Test Mode II (Self-diagnostic results). Refer to EC-64, "How to Set Diagnostic Test
Mode II (Self-diagnostic Results)" .
2. Fully depress the accelerator pedal and keep it for more than 10 seconds. The emission-related diagnostic information has been erased from the backup memory in the ECM.
3. Fully release the accelerator pedal, and confirm the DTC 0000 is displayed.
DIAGNOSTIC TEST MODE I — BULB CHECK
In this mode, the MIL on the instrument panel should stay ON. If it remains OFF, check the bulb. Refer to DI-
31, "WARNING LAMPS" or see EC-635, "MIL AND DATA LINK CONNECTOR" .
DIAGNOSTIC TEST MODE I — MALFUNCTION WARNING
This DTC number is clarified in Diagnostic Test Mode II (SELF-DIAGNOSTIC RESULTS)
DIAGNOSTIC TEST MODE II — SELF-DIAGNOSTIC RESULTS
In this mode, the DTC and 1st trip DTC are indicated by the number of blinks of the MIL as shown below.
PBIB0092E
MIL Condition
ON When the malfunction is detected.
OFF No malfunction.

EI-1
EXTERIOR & INTERIOR
I BODY
CONTENTS
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SECTION
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Revision: November 2009 2006 QX56
PRECAUTIONS .....................................................
..... 3
Service Notice .......................................................... 3
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” ............................................................. ..... 3
PREPARATION ...................................................... ..... 4
Special Service Tools .......................................... ..... 4
Commercial Service Tools ................................... ..... 4
SQUEAK AND RATTLE TROUBLE DIAGNOSES ..... 5
Work Flow ................................................................ 5 CUSTOMER INTERVIEW ................................ ..... 5
DUPLICATE THE NOISE AND TEST DRIVE .. ..... 6
CHECK RELATED SERVICE BULLETINS ...... ..... 6
LOCATE THE NOISE AND IDENTIFY THE
ROOT CAUSE ................................................. ..... 6
REPAIR THE CAUSE ...................................... ..... 6
CONFIRM THE REPAIR .................................. ..... 7
Generic Squeak and Rattle Troubleshooting ...... ..... 7
INSTRUMENT PANEL ..................................... ..... 7
CENTER CONSOLE ........................................ ..... 7
DOORS ............................................................ ..... 7
TRUNK ............................................................. ..... 8
SUNROOF/HEADLINING ................................ ..... 8
OVERHEAD CONSOLE (FRONT AND REAR) ..... 8
SEATS .............................................................. ..... 8
UNDERHOOD .................................................. ..... 8
Diagnostic Worksheet ......................................... ..... 9
CLIP AND FASTENER .......................................... ....11
Description .......................................................... .... 11
FRONT BUMPER .................................................. ... 13
Removal and Installation ..................................... ... 13
REMOVAL ........................................................ ... 13
INSTALLATION ................................................ ... 14
REAR BUMPER .................................................... ... 15
Removal and Installation ..................................... ... 15
REMOVAL ........................................................ ... 16
INSTALLATION ................................................ ... 16FRONT GRILLE .....................................................
... 17
Removal and Installation ..................................... ... 17
REMOVAL ........................................................ ... 17
INSTALLATION ................................................ ... 17
COWL TOP ............................................................ ... 18
Removal and Installation ..................................... ... 18
REMOVAL ........................................................ ... 18
INSTALLATION ................................................ ... 19
FRONT FENDER ................................................... ... 20
Removal and Installation ..................................... ... 20
REMOVAL ........................................................ ... 20
INSTALLATION ................................................ ... 20
OVER FENDER ...................................................... ... 21
Removal and Installation ..................................... ... 21
REMOVAL ........................................................ ... 21
INSTALLATION ................................................ ... 21
FENDER PROTECTOR ......................................... ... 23
Removal and Installation ..................................... ... 23
REMOVAL ........................................................ ... 23
INSTALLATION ................................................ ... 23
LICENSE LAMP FINISHER ................................... ... 24
Removal and Installation ..................................... ... 24
REMOVAL ........................................................ ... 24
INSTALLATION ................................................ ... 24
RUNNING BOARDS .............................................. ... 25
Removal and Installation ..................................... ... 25
REMOVAL ........................................................ ... 25
INSTALLATION ................................................ ... 25
REAR SPOILER ..................................................... ... 26
Removal and Installation ..................................... ... 26
REMOVAL ........................................................ ... 26
INSTALLATION ................................................ ... 26
ROOF RACK .......................................................... ... 27
Removal and Installation ..................................... ... 27
REMOVAL ........................................................ ... 27
INSTALLATION ................................................ ... 27
DOOR OUTSIDE MOLDING .................................. ... 28
Removal and Installation ..................................... ... 28
......................................................................... ... 28
......................................................................... ... 29

PRECAUTIONSEI-3
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Revision: November 2009 2006 QX56
PRECAUTIONSPFP:00001
Service NoticeEIS004W7

When removing or installing various parts, place a cloth or padding on the vehicle body to prevent
scratches.

Handle trim, molding, instruments, grille, etc. carefully during removing or installing. Be careful not to soil
or damage them.

Apply sealing compound where necessary when installing parts.

When applying sealing compound, be careful that the sealing compound does not protrude from parts.

When replacing any metal parts (for example body outer panel, members, etc.), be sure to take rust pre-
vention measures.
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
EIS004W8
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER ”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SRS and SB section of this Service Man-
ual.
WARNING:

To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
in the event of a collision which would result in air bag inflation, all maintenance must be per-
formed by an authorized NISSAN/INFINITI dealer.

Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the SRS section.

Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or
harness connectors.

SQUEAK AND RATTLE TROUBLE DIAGNOSESEI-7
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Revision: November 2009 2006 QX56
80845-71L00: 30 mm (1.18 in) thick, 30×50 mm (1.18 ×1.97 in)
FELT CLOTH TAPE
Used to insulate where movement does not occur. Ideal for instrument panel applications.
68370-4B000: 15× 25 mm (0.59×0.98 in) pad/68239-13E00: 5 mm (0.20 in) wide tape roll. The following
materials not found in the kit can also be used to repair squeaks and rattles.
UHMW (TEFLON) TAPE
Insulates where slight movement is present. Ideal for instrument panel applications.
SILICONE GREASE
Used instead of UHMW tape that will be visible or not fit.
Note: Will only last a few months.
SILICONE SPRAY
Use when grease cannot be applied.
DUCT TAPE
Use to eliminate movement.
CONFIRM THE REPAIR
Confirm that the cause of a noise is repaired by test driving the vehicle. Operate the vehicle under the same
conditions as when the noise originally occurred. Refer to the notes on the Diagnostic Worksheet.
Generic Squeak and Rattle TroubleshootingEIS0062W
Refer to Table of Contents for specific component removal and installation information.
INSTRUMENT PANEL
Most incidents are caused by contact and movement between:
1. The cluster lid A and instrument panel
2. Acrylic lens and combination meter housing
3. Instrument panel to front pillar garnish
4. Instrument panel to windshield
5. Instrument panel pins
6. Wiring harnesses behind the combination meter
7. A/C defroster duct and duct joint
These incidents can usually be located by tapping or moving the components to duplicate the noise or by
pressing on the components while driving to stop the noise. Most of these incidents can be repaired by apply-
ing felt cloth tape or silicone spray (in hard to reach areas). Urethane pads can be used to insulate wiring har-
ness.
CAUTION:
Do not use silicone spray to isolate a squeak or rattle. If you saturate the area with silicone, you will
not be able to recheck the repair.
CENTER CONSOLE
Components to pay attention to include:
1. Shifter assembly cover to finisher
2. A/C control unit and cluster lid C
3. Wiring harnesses behind audio and A/C control unit
The instrument panel repair and isolation procedures also apply to the center console.
DOORS
Pay attention to the:
1. Finisher and inner panel making a slapping noise
2. Inside handle escutcheon to door finisher
3. Wiring harnesses tapping
4. Door striker out of alignment causing a popping noise on starts and stops
Tapping or moving the components or pressing on them while driving to duplicate the conditions can isolate
many of these incidents. You can usually insulate the areas with felt cloth tape or insulator foam blocks from
the NISSAN Squeak and Rattle Kit (J-43980) to repair the noise.