warning INFINITI QX56 2009 Factory Service Manual

WARNING CHIME FUNCTIONDLK-111
< COMPONENT DIAGNOSIS > [WITH INTELLIGENT KEY SYSTEM]
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WARNING CHIME FUNCTION
DescriptionINFOID:0000000003775788
Performs operation method guide and warning with buzzer.
Component Function CheckINFOID:0000000003775789
1.CHECK FUNCTION
With CONSULT-III
1. Check the operation with "INSIDE BUZZER" in the Active Test.
2. Touch “TAKE OUT”, “KNOB”or “KEY” on screen.
Is the inspection result normal?
Yes >> Warning buzzer into combination meter is OK.
No >> Refer to D L K - 111 , "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000003775790
1.CHECK METER BUZZER CIRCUIT
The inoperative warning chime is contained inside the combination meter. Replace combination meter. Refer
to MWI-102, "
Removal and Installation".
>> Inspection End.
Revision: December 20092009 QX56

DLK-112
< COMPONENT DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
HAZARD FUNCTION
HAZARD FUNCTION
DescriptionINFOID:0000000003775791
Perform answer-back for each operation with number of blinks.
Component Function CheckINFOID:0000000003775792
1.CHECK FUNCTION
Check hazard warning lamp "FLASHER" in ACTIVE TEST.
Is the inspection result normal?
YES >> Hazard warning lamp circuit is OK.
NO >> Refer to DLK-112, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000003775793
1.CHECK HAZARD SWITCH CIRCUIT
Operate the hazard lights by turni ng ON the hazard warning switch.
Do the lights operate normally?
YES >> Replace the BCM. Refer to BCS fo r replacement and configuration procedure.
NO >> Repair or replace hazard warning switch circuit. Refer to EXL-78, "
Wiring Diagram".
Revision: December 20092009 QX56

AUTOMATIC BACK DOOR SELF-DIAGNOSIS PROCEDUREDLK-123
< COMPONENT DIAGNOSIS > [WITH INTELLIGENT KEY SYSTEM]
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AUTOMATIC BACK DOOR SELF-DIAGNOSIS PROCEDURE
Self-Diagnosis ProcedureINFOID:0000000003775801
INPUT SIGNAL CHECK MODE
Input signal check mode allows testing of swit ch input signal to the back door control unit.
To activate input signal check mode on the automatic sliding door, perform the following steps:
1. Turn ignition switch OFF.
2. Turn back door close switch to CANCEL (system cancelled).
3. Place A/T shift selector in P position.
4. Using the inside emergency release lever, open the back door.
5. Have an assistant press and hold the back door handle switch.
6. While the assistant continues to hold the back door handle switch, turn ignition switch ON (DO NOT start
engine).
7. After approximately 5 seconds, the back door warning chime will sound for 0.5 seconds.
8. Release the back door handle switch.
9. Within 8 seconds of the back door warning chime sounding, press and hold the power liftgate switch.
10. After approximately 5 seconds, the back door warning chime will sound for 1 second.
11. Release the power liftgate switch.
12. The input signal check mode is now initialized.
The input signal check mode can test the following inputs. The back door warning chime will sound for approx-
imately 0.5 second each time a switch signal input oc curs. Use this test when one of these inputs is not
responding during normal automatic back door operation.
*Back door warning chime should sound as soon as vehicle moves.
Turn ignition switch OFF to end input signal check mode.
OPERATING CHECK MODE
Operating check mode allows self-diagnos is of the automatic back door system.
To activate operating check mode on the automatic back door, perform the following steps:
1. Turn ignition switch OFF.
2. Turn back door close switch to CANCEL (system cancelled).
3. Place A/T shift selector in P position.
4. Using the inside emergency release lever, open the back door.
5. Have an assistant press and hold the back door handle switch.
6. While the assistant continues to hold the back door handle switch, turn ignition switch ON (DO NOT start engine).
7. After approximately 5 seconds, the back door warning chime will sound for 0.5 second.
8. Release the back door handle switch.
Switch signal OperationRefer to
Power liftgate switch OFF → ONDLK-129
Back door close switch (CLOSE) OFF → ON DLK-131
Back door close switch (CANCEL) OFF → ON DLK-132
Back door handle switch OFF → ON DLK-138
A/T shift selector (park position switch) P position → other than P position DLK-101
Vehicle speed* Vehicle speedTM-49
Remote keyless entry signal Keyfob switch OFF → ON DLK-103
Door lock/unlock signal LOCK → UNLOCK DLK-74
Pinch strip LH signal OFF → ON DLK-133
Pinch strip RH signal OFF → ON DLK-133
Revision: December 20092009 QX56

DLK-124
< COMPONENT DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
AUTOMATIC BACK DOOR SELF-DIAGNOSIS PROCEDURE
9. Within 8 seconds of the back door warning chime
sounding, press the power liftgate switch 5 times in
rapid succession.
10. After approximately 5 seconds, the back door warning chime will sound for 1 second.
11. Release the power liftgate switch.
12. Immediately close the back door manually.
13. Press and release the power liftgate swit ch to activate the operating check mode.
Self-diagnosis results are indicated by the back door warning chime.
Turn ignition switch OFF to end input signal check mode.
Back door warning chime order Back door warning chime length
Start self-diagnosis 1.5 seconds
OK NG
1. Operating conditions diagnosis 0.5 second0.2 second
2. Back door encoder diagnosis 0.5 second0.2 second
3. Back door clutch diagnosis 0.5 second0.2 second
4. Back door motor diagnosis 0.5 second0.2 second
5. Cinch latch motor diagnosis 0.5 second0.2 second
Restart self-diagnosis 1.5 seconds
ItemNG ResultRefer to
1. Operating conditions diagnosis result One of the following operating conditions no
longer met: ignition switch ON, back door close
switch (CANCEL) ON, A/T shift selector in P
position—
2. Back door encoder diagnosis result Sensor diagnosis/short, pulse signal, pulse
signal directionDLK-243
3. Back door clutch diagnosis result
Back door clutch does not operateDLK-243
4. Back door motor diagnosis result Back door motor does not operate (no operat-
ing current)
DLK-243
5. Cinch latch motor diagnosis result Cinch latch motor does not operate (no operat-
ing current)DLK-243
Revision: December 20092009 QX56

DLK-134
< COMPONENT DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
BACK DOOR WARNING CHIME SYSTEM
BACK DOOR WARN
ING CHIME SYSTEM
Diagnosis ProcedureINFOID:0000000003775807
1.BACK DOOR WARNING CHI ME CIRCUIT INSPECTION
1. Disconnect back door control unit and back door warning chime.
2. Check continuity between back door control unit connector (A) B55 terminal 6 and back door warning chime connector (B)
D514 terminal 1.
3. Check continuity between back door control unit connector (A) B55 terminal 6 and ground.
Is the inspection result normal?
YES >> GO TO 2
NO >> Repair or replace the harness between t he warning chime and the back door control unit.
2.WARNING CHIME CIRCUIT INSPECTION
1. Check continuity between back door control unit connector (A) B55 terminal 9 and back door warning chime connector (B)
D514 terminal 2.
2. Check continuity between back door control unit connector (A) B55 terminal 9 and ground.
Is the inspection result normal?
YES >> Replace warning chime.
NO >> Repair or replace the harness between t he warning chime and the back door control unit.
6 - 1 : Continuity should exist.
6 - Ground : Continuity should not exist.
ALKIA0673ZZ
9 - 2
: Continuity should exist.
9 - Ground : Continuity should not exist.
ALKIA0674ZZ
Revision: December 20092009 QX56

BCM (BODY CONTROL MODULE)DLK-149
< ECU DIAGNOSIS > [WITH INTELLIGENT KEY SYSTEM]
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Te r m i n a l Wire
color Signal name Signal
input/
output Measuring condition
Reference value or waveform
(Approx.)
Ignition
switch Operation or condition
1BR/W Ignition keyhole illumi-
nation Output OFFDoor is locked (SW OFF)
Battery voltage
Door is unlocked (SW ON) 0V
2SB Combination switch
input 5 Input ON
Lighting, turn, wiper OFF
Wiper dial position 4
3G/Y Combination switch
input 4 Input ONLighting, turn, wiper OFF
Wiper dial position 4
4Y Combination switch
input 3 Input ON
Lighting, turn, wiper OFF
Wiper dial position 4
5G/B Combination switch
input 2
Input ONLighting, turn, wiper OFF
Wiper dial position 4
6V Combination switch
input 1
9GR/R Rear window defogger
switch
Input ONRear window defogger switch
ON
0V
Rear window defogger switch
OFF 5V
10 G Hazard lamp flash Input OFF ON (opening or closing)
0V
OFF (other than above) Battery voltage
11 O Ignition switch (ACC
or ON)
InputACC or
ON Ignition switch ACC or ON
Battery voltage
12 R/L Front door switch RH Input OFF ON (open)
0V
OFF (closed) Battery voltage
13 GR Rear door switch RH Input OFF ON (open)
0V
OFF (closed) Battery voltage
15 L/W Tire pressure warning
check connector
Input OFF
—5V
18 P Remote keyless entry
receiver and optical
sensor (ground)
Output OFF
—0V
SKIA5291E
SKIA5292E
SKIA5291E
SKIA5292E
Revision: December 20092009 QX56

DLK-170
< ECU DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
BCM (BODY CONTROL MODULE)
CONSULT display
Fail-safeIntelligent Key
warning lamp ON Tire pressure
monitor warning lamp ON Reference page
No DTC is detected.
further testing
may be required. ————
U1000: CAN COMM CIRCUIT ———BCS-30
U1010: CONTROL UNIT (CAN) ———BCS-31
B2190: NATS ANTENNA AMP ———SEC-27
B2191: DIFFERENCE OF KEY ———SEC-30
B2192: ID DISCORD BCM-ECM ———SEC-31
B2193: CHAIN OF BCM-ECM ———SEC-33
B2552: INTELLIGENT KEY ———SEC-35
B2590: NATS MALFUNCTION ———SEC-36
C1704: LOW PRESSURE FL ———WT-26
C1705: LOW PRESSURE FR ———WT-26
C1706: LOW PRESSURE RR ———WT-26
C1707: LOW PRESSURE RL ———WT-26
C1708: [NO DATA] FL ———WT-14
C1709: [NO DATA] FR ———WT-14
C1710: [NO DATA] RR ———WT-14
C1711: [NO DATA] RL ———WT-14
C1712: [CHECKSUM ERR] FL ———WT-16
C1713: [CHECKSUM ERR] FR ———WT-16
C1714: [CHECKSUM ERR] RR ———WT-16
C1715: [CHECKSUM ERR] RL ———WT-16
C1716: [PRESSDATA ERR] FL ———WT-18
C1717: [PRESSDATA ERR] FR ———WT-18
C1718: [PRESSDATA ERR] RR ———WT-18
C1719: [PRESSDATA ERR] RL ———WT-18
C1720: [CODE ERR] FL ———WT-16
C1721: [CODE ERR] FR ———WT-16
C1722: [CODE ERR] RR ———WT-16
C1723: [CODE ERR] RL ———WT-16
C1724: [BATT VOLT LOW] FL ———WT-16
C1725: [BATT VOLT LOW] FR ———WT-16
C1726: [BATT VOLT LOW] RR ———WT-16
C1727: [BATT VOLT LOW] RL ———WT-16
C1729: VHCL SPEED SIG ERR ———WT-19
C1735: IGNITION SIGNAL ————
Revision: December 20092009 QX56

BACK DOOR CONTROL UNITDLK-193
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BACK DOOR CONTROL UNIT
Reference ValueINFOID:0000000003775830
TERMINAL LAYOUT
PHYSICAL VALUES
LIIA2444E
Te r m i n a l Wire Col-
or Item
Condition Voltage (V)
(Approx.)
1 B Ground ——
2 B Ground ——
3 Y/R Battery power supply —Battery voltage
4 G Hazard lamp output Request to flash hazardsPulse must be >50ms
but less than 250ms
5 B/P Pinch strip ground ——
6 R Warning chime output Back door motor activeBattery voltage
7 G/R Ignition switch Ignition switch ON
Battery voltage
Ignition switch OFF 0
8 GR/B Back door close switch Close position ON
0
Neutral position OFF Battery voltage
9 L Warning chime ground ——
10 L/B Battery power —Battery voltage
11 Y Cinch latch motor
CLOSE output Back door close operation
Battery voltage
12 L Closure motor
RETURN output Back door release operation
Battery voltage
13 P/L Back door close switch Cancel position
0
Neutral position 5
14 P Close switch signal While fully opening back door
PIIA3278E
WIIA1047E
Revision: December 20092009 QX56

DOOR LOCK FUNCTION SYMPTOMSDLK-209
< SYMPTOM DIAGNOSIS > [WITH INTELLIGENT KEY SYSTEM]
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Auto lock function does not operate properly. 1. Check “AUTO RELOCK TIMER” setting in “WORK SUPPORT”.
DLK-56
2. Key switch check (BCM).DLK-115
3. Ignition knob switch check.DLK-116
4. Door switch check. DLK-71
5. Replace Intelligent Key unit.SEC-111
Key reminder function does not operate properly.1.
Check “ANTI KEY LOCK IN FUNCTION” setting in “WORK
SUPPORT”.
DLK-56
2. Door switch check.
DLK-71
3a. Inside key antenna 1 (rear of center console) check.DLK-60
3b. Inside key antenna 2 (luggage compartment) check.DLK-62
3c. Inside key antenna 3 (front of center console) check.DLK-64
3d. Inside key antenna 4 (overhead console area) check.DLK-66
4. Front door lock actuator LH (door unlock sensor) check.DLK-81
5. Intelligent Key battery inspection.DLK-106
6. Replace Intelligent Key unit. SEC-111
Panic alarm function does not operate properly.1. Check “PANIC ALARM DELAY” setting in “WORK SUPPORT”.
DLK-56
2. Theft warning operation check.DLK-212
3. Intelligent Key battery inspection.DLK-106
4. Key switch check (BCM). DLK-115
5. Ignition knob switch check.DLK-116
6. Replace Intelligent Key unit.SEC-111
Back door open function does not operate prop-
erly.1. Back door diagnosis.
DLK-1232. Intelligent Key battery inspection.DLK-106
3. Replace Intelligent Key unit. SEC-111
Power window down function does not operate.1. Check “PW DOWN SET” setti
ng in “WORK SUPPORT”. DLK-562. Intelligent Key battery inspection. DLK-106
SymptomDiagnosis/service procedureReference
page
Revision: December 20092009 QX56

DLK-210
< SYMPTOM DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
BACK DOOR OPENER FUNCTION
BACK DOOR OPENER FUNCTION
BACK DOOR OPENER SWITCH
BACK DOOR OPENER SWITCH : Symptom TableINFOID:0000000003775836
TRUNK OPEN FUNCTION MALFUNCTION
NOTE:
• Before performing the diagnosis in the following table, check “WORK FLOW”. Refer to
DLK-6, "
Work Flow".
• Check that vehicle is under the condition shown in “Conditions of vehicle” before starting diagnosis, and
check each symptom.
• If the following symptoms” are detected, check systems shown in the “Diagnosis/service procedure” column in this order.
Conditions of Vehicle (Operating Conditions)
• Vehicle is in park.
BACK DOOR HANDLE
Symptom Suspect systemsRefer to
Automatic operations are not executed from the back door fully
closed or fully open position.
(Auto closure operates normally). Power liftgate switch system inspection
DLK-141
Park switch —
Power window serial link —
Pinch strip system inspection DLK-133
Automatic operations are not carried out together with open/close
operations.
(Manual operations are normal). Power liftgate switch system inspection
DLK-141Back door close switch system inspectionDLK-137
Auto back door power supply and ground cir-
cuit system inspection. DLK-69
The auto closure function does not operate.
(Stops at the halfway position for auto closing operations).
Pinch strip system inspection
DLK-133
During auto closing operations, if obstruction is detected, the door
does not operate in reverse. Back door motor assembly
DLK-243
During close or cinch operations, the door does not operate in re-
verse if the back door handle is operated. Handle switch system
DLK-140
When the keyfob is operated, the back door does not operate au-
tomatically. Remote keyless entry system inspection
DLK-103Power window serial link —
Pinch strip system inspection DLK-133
Auto closure does not operate. Half-latch switch system
DLK-135Cinch latch motor systemDLK-139
Handle switch systemDLK-140
The back door does not open.
(Closure motor rotation is not reversed). Open switch system
DLK-136
Handle switch systemDLK-140
Warning chime does not sound. Back door warning chime systemDLK-134
Auto closure operation works, but the back door is not fully closed Close switch system
DLK-137
Handle switch systemDLK-140
Cinch latch motor systemDLK-139
Back door latch assembly mechanism dam-
aged or worn.DLK-243
Auto open operation releases lock, but does not fully open back
door. Glass hatch ajar switch check
DLK-129
Glass hatch lock actuator does not operate
(Right front door must be unlocked for normal operation) Glass hatch switch check
DLK-127Glass hatch lock actuator check DLK-92
Replace BCMBCS-56
Revision: December 20092009 QX56