2006 INFINITI QX56 hood open

VEHICLE SECURITY (THEFT WARNING) SYSTEMBL-91
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Revision: November 2009 2006 QX56
Symptom ChartEIS0060O
*1: Make sure the system is in the armed phase.SYMPTOM PROCEDURE Diagnostic procedure
1 Vehicle security
system cannot be
set by
···· Door switch Refer to
BL-92, "
Door Switch Check" .
Lock/unlock switch Refer to BL-98, "
Door Lock/Unlock Switch Check" .
Door outside key Refer to BL-96, "
Front Door Lock Assembly LH (Key Cylinder Switch)
Check" .
BCM If the above systems are “OK ”, replace BCM. Refer to BCS-20, "
BCM" .
2 Security indicator
does not turn
“
ON ”. Combination meter Refer to BL-95, "
Combination Meter (Security Indicator Lamp) Check" .
BCM If the above systems are “OK ”, replace BCM. Refer to BCS-20, "
BCM" .
3 *1 Vehicle secu-
rity system does
not alarm when
···· Any door, hood or glass hatch
is opened. Refer to BL-92, "
Door Switch Check" .
Refer to BL-94, "
Hood Switch Check" .
If the above systems are “ OK”, replace BCM. Refer to BCS-20, "
BCM" .
4 Vehicle security
alarm does not
activate. Horn alarm
Refer to BL-98, "
Vehicle Security Horn Alarm Check" .
If the above systems are “ OK”, check horn system.
Refer to WW-55, "
HORN" .
Headlamp alarm Refer to BL-98, "
Vehicle Security Headlamp Alarm Check" .
If the above systems are “ OK”, replace BCM. Refer to BCS-20, "
BCM" .
5 Vehicle security
system cannot be
canceled by
····Door outside key
Refer to BL-96, "
Front Door Lock Assembly LH (Key Cylinder Switch)
Check" .
If the above systems are “ OK”, check main power window and door lock/
unlock switch.
Keyfob Check remote keyless entry function. Refer to
BL-65, "
Keyfob Battery and
Function Check" .
If the above systems are “ OK”, replace BCM. Refer to BCS-20, "
BCM" .

BL-94
VEHICLE SECURITY (THEFT WARNING) SYSTEM
Revision: November 20092006 QX56
4. CHECK BACK DOOR SWITCH GROUND
Check continuity between back door latch connector terminal 8 and
ground.
OK or NG
OK >> Back door switch circuit is OK.
NG >> Repair or replace harness.
Hood Switch CheckEIS0060Q
1. CHECK HOOD SWITCH
Check hood switch and hood fitting condition.
OK or NG
OK >> GO TO 2.
NG >> Adjust installation of hood switch.
2. CHECK HOOD SWITCH INPUT SIGNAL
With CONSULT-II
Check "HOOD SW" in "DATA MONITOR" mode with CONSULT-II.
Without CONSULT-II
Check voltage between IPDM E/R harness connector E122 terminal
41 and ground.
OK or NG
OK >> Hood switch is OK.
NG >> GO TO 3. 8 - Ground
: Continuity should exist.
LIIA0828E
When hood is open : HOOD SW ON
When hood is closed : HOOD SW OFF
LIIA0038E
ConnectorTerminal
Condition of
hood Voltage (V)
(Approx.)
(+) (-)
E122 41Ground Open
0
Closed Battery voltage
WIIA0601E

VEHICLE SECURITY (THEFT WARNING) SYSTEMBL-95
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Revision: November 2009 2006 QX56
3. CHECK HOOD SWITCH
1. Turn ignition switch OFF.
2. Disconnect hood switch connector.
3. Check continuity between hood switch terminals 1 and 2.
OK or NG
OK >> Check the following:

Hood switch ground circuit.

Harness for open or short between hood switch and
IPDM E/R
NG >> Replace hood switch.
Combination Meter (Security Indicator Lamp) CheckEIS0060R
1. SECURITY INDICATOR LAMP ACTIVE TEST
With CONSULT-II
Check "THEFT IND ” in "ACTIVE TEST" mode with CONSULT-II.
Without CONSULT-II
1. Disconnect BCM.
2. Check voltage between BCM harness connector M18 terminal 23 and ground.
OK or NG
OK >> Security indicator lamp is OK.
NG >> GO TO 2.
2. SECURITY INDICATOR LAMP CHECK
Check security indicator lamp condition.
Refer to DI-5, "
COMBINATION METERS" .
OK or NG
OK >> GO TO 3.
NG >> Replace combination meter (security indicator lamp). Refer to DI-8, "
Combination Meter" .
TerminalsConditionContinuity
1- 2 Pressed
No
Released Yes
LIIA0040E
LIIA0044E
ConnectorTerminals
ConditionVoltage (V)
(Approx.)
(+) (-)
M18 23Ground ON
0
OFF Battery volt-
age
LIIA0523E

BL-164
BODY REPAIR
Revision: November 20092006 QX56
1. Front fender (RH, LH)
2. Hood assembly
3. Rear hoodledge reinforcement (RH, LH)
4. Outer sill reinforcement (RH, LH)
5. Front pillar hinge brace (RH, LH)
6. Center pillar hinge brace
7. Outer front pillar reinforcement (RH, LH)
8. Center inner pillar (RH, LH)
9. Front inner pillar upper (RH, LH)
10. Inner roof side rail (RH, LH)
11. Roof with sunroof opening
12. Roof
13. Front roof rail
14. Sunroof reinforcement
15. Roof 1st bow
16. Roof 2nd bow
17. Roof 3rd bow
18. Roof 4th bow
19. Rear roof rail
20. Main back pillar (RH, LH)
21. Back pillar reinforcement (RH, LH)
22. Rear inner side panel (RH, LH)
23. Rear wheel housing (RH, LH)
24. Rear body side outer (RH, LH)
25. Front body side outer (RH, LH)
26. Front door assembly (RH, LH)
27. Rear door assembly (RH, LH)
28. Lift gate assembly

BASIC SERVICE PROCEDUREEC-71
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Revision: November 2009 2006 QX56
BASIC SERVICE PROCEDUREPFP:00018
Basic InspectionUBS00KZU
1. INSPECTION START
1. Check service records for any recent repairs that may indicate a related malfunction, or a current need for scheduled maintenance.
2. Open engine hood and check the following:
–Harness connectors for improper connections
–Wiring harness for improper connections, pinches and cut
–Vacuum hoses for splits, kinks and improper connections
–Hoses and ducts for leaks
–Air cleaner clogging
–Gasket
3. Confirm that electrical or mechanical loads are not applied.
–Headlamp switch is OFF.
–Air conditioner switch is OFF.
–Rear window defogger switch is OFF.
–Steering wheel is in the straight-ahead position, etc.
4. Start engine and warm it up until engine coolant temperature indicator points the middle of gauge.
Ensure engine stays below 1,000 rpm.
5. Run engine at about 2,000 rpm for about 2 minutes under no load.
6. Make sure that no DTC is displayed with CONSULT-II or GST.
OK or NG
OK >> GO TO 3.
NG >> GO TO 2.
2. REPAIR OR REPLACE
Repair or replace components as necessary according to corresponding Diagnostic Procedure.
>> GO TO 3.
SEF983U
SEF976U
SEF977U

EC-116Revision: November 2009
TROUBLE DIAGNOSIS
2006 QX56
X: Applicable
*1: This item includes 1st trip DTCs.
*2: This mode includes 1st trip freeze frame data or freeze frame data. The items appear on CONSULT-II screen in freeze frame data
mode only if a 1st trip DTC or DTC is detected. For details, refer to EC-118, "
Freeze Frame Data and 1st Trip Freeze Frame Data" .
INSPECTION PROCEDURE
CAUTION:
If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be
detected in self-diagnosis depending on control unit which carry out CAN communication.
1. Turn ignition switch OFF.
2. Connect CONSULT-II and CONSULT-II CONVERTER to data
link connector, which is located under LH dash panel near the
hood opener handle.
3. Turn ignition switch ON.
4. Touch “START (NISSAN BASED VHCL) ”.
ENGINE CONTROL COMPONENT PARTS
OUTPUT
Fuel injector ×× ×
Power transistor (Ignition timing) ×× ×
Throttle control motor relay ×××
Throttle control motor ×
EVAP canister purge volume con-
trol solenoid valve ××
×××
Air conditioner relay ××
Fuel pump relay ×× ××
Cooling fan relay ××××
Air fuel ratio (A/F) sensor 1 heater ××××
Heated oxygen sensor 2 heater ××××
EVAP canister vent control valve ×× ×××
Calculated load value ×××
Item
DIAGNOSTIC TEST MODE
WORK SUP-
PORT SELF-DIAGNOSTIC
RESULTS DATA
MONI- TOR DATA
MONI-
TOR
(SPEC) ACTIVE
TEST DTC & SRT
CONFIRMATION
DTC*1 FREEZE
FRAME
DATA*2 SRT
STATUS DTC
WORK
SUP-
PORT
BBIA0369E
BCIA0029E

EC-128Revision: November 2009
TROUBLE DIAGNOSIS
2006 QX56
INSPECTION PROCEDURE
1. Turn ignition switch OFF.
2. Connect GST to data link connector, which is located under LHdash panel near the hood opener handle.
3. Turn ignition switch ON.
4. Enter the program according to instruction on the screen or in the operation manual.
(*: Regarding GST screens in this section, sample screens are
shown.)
5. Perform each diagnostic service according to each service pro- cedure.
For further information, see the GST Operation Manual of
the tool maker.
BBIA0369E
SEF398S
SEF416S

EC-254Revision: November 2009
DTC P0137, P0157 HO2S2
2006 QX56
DTC Confirmation ProcedureUBS00H8E
NOTE:
If DTC confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
WITH CONSULT-II
TESTING CONDITION:
For better results, perform “DTC WORK SUPPORT” at a temperature of 0 to 30 °C (32 to 86 ° F).
1. Turn ignition switch ON and select “DATA MONITOR ” mode with
CONSULT-II.
2. Start engine and warm it up to the normal operating tempera- ture.
3. Turn ignition switch OFF and wait at least 10 seconds.
4. Start engine and keep the engine speed between 3,500 and 4,000 rpm for at least 1 minute under no load.
5. Let engine idle for 1 minute.
6. Make sure that “COOLAN TEMP/S ” indicates more than 70°C
(158 °F).
If not, warm up engine and go to next step when “COOLAN
TEMP/S ” indication reaches to 70 °C (158 °F).
7. Open engine hood.
8. Select “HO2S2 (B1) P1147 ” (for DTC P0137) or “HO2S2 (B2) P1167” (for DTC P0157) of “HO2S2” in
“DTC WORK SUPPORT ” mode with CONSULT-II.
9. Start engine and following the instruction of CONSULT-II.
NOTE:
It will take at most 10 minutes until “COMPLETED” is displayed.
10. Make sure that “OK ” is displayed after touching “SELF-DIAG RESULTS”.
If “NG ” is displayed, refer to EC-259, "
Diagnostic Procedure" .
If “CAN NOT BE DIAGNOSED ” is displayed, perform the following.
a. Turn ignition switch OFF and leave the vehicle in a cool place (soak the vehicle).
b. Return to step 1.
Overall Function CheckUBS00H8F
Use this procedure to check the overall function of the heated oxygen sensor 2 circuit. During this check, a 1st
trip DTC might not be confirmed.
WITH GST
1. Start engine and warm it up to the normal operating temperature.
2. Turn ignition switch OFF and wait at least 10 seconds.
3. Start engine and keep the engine speed between 3,500 and 4,000 rpm for at least 1 minute under no load.
4. Let engine idle for 1 minute.
5. Set voltmeter probes between ECM terminal 55 [HO2S2 (B1) signal] or 74 [HO2S2 (B2) signal] and ground.
SEF174Y
PBIB2373E