lock INFINITI QX56 2010 Factory Service Manual

DLK-196
< ECU DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
INTELLIGENT KEY UNIT
DTC Inspection Priority Chart
INFOID:0000000005380596
If some DTCs are displayed at the same time, perform inspections one by one based on the following priority
chart.
DTC IndexINFOID:0000000005380597
NOTE: Details of time display
• CRNT: Displays when there is a malfunction now or after returning to the normal condition until turning igni-
tion switch OFF → ON again.
• 1 - 39: Displayed if any previous malfunction is pr esent when current condition is normal. It increases 1 → 2
→ 3...38 → 39 after returning to the normal condition whenever ignition switch OFF → ON. The counter
remains at 39 even if the number of cycles exceeds it. It is counted from 1 again when turning ignition switch
OFF → ON after returning to the normal condition if the malfunction is detected again.
Priority DTC
1 • U1000: CAN COMM CIRCUIT
• U1010: CONTROL UNIT (CAN)
2 • B2190: NATS ANTENNA AMP
• B2191: DIFFERENCE OF KEY
• B2192: ID DISCORD BCM-ECM
• B2193: CHAIN OF BCM-ECM
• B2194: ID DISCORD IMMU-I-KEY
3 • B2013: ID DISCORD BCM-S/L
• B2552: INTELLIGENT KEY
• B2590: ID DISCORD BCM-I-KEY
• P1610: LOCK MODE
• P1611: ID DISCORD, IMMU-ECM
• P1612: CHAIN OF ECM-IMMU
• P1614: CHAIN OF IMMU-KEY
• P1615: DIFFERENCE OF KEY
CONSULT display
Fail-safeFreeze Frame Data
•Vehicle Speed
•Odo/Trip Meter
•Vehicle Condition Intelligent Key warn-
ing lamp ON Reference page
No DTC is detected.
Further testing
may be required. ————
U1000: CAN COMM ———DLK-58
U1010: CONTROL UNIT(CAN) ———DLK-59
B2013: ID DISCORD BCM-S/L ××—SEC-28
B2190: NATS ANTENNA AMP ×—— SEC-31
B2191: DIFFERENCE OF KEY ×—— SEC-34
B2192: ID DISCORD BCM-ECM ×—— SEC-35
B2193: CHAIN OF BCM-ECM ×—— SEC-37
B2194: ID DISCORD IMMU-I-KEY ×—— SEC-38
B2552: INTELLIGENT KEY —×× SEC-39
B2590: IID DISCORD BCM-I-KEY —×× SEC-40
P1610: LOCK MODE —×× SEC-41
P1611: ID DISCORD, IMMU-ECM —×× SEC-42
P1612: CHAIN OF ECM-IMMU —— ×SEC-44
P1614: CHAIN OF IMMU-KEY ××× SEC-45
P1615: DIFFERENCE OF KEY—×× SEC-48
Revision: April 20092010 QX56

DLK-210
< SYMPTOM DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
INTELLIGENT KEY SYSTEM SYMPTOMS
SYMPTOM DIAGNOSIS
INTELLIGENT KEY SYSTEM SYMPTOMS
Symptom TableINFOID:0000000005147032
ALL FUNCTIONS OF INTELLIGENT KEY SYSTEM DO NOT OPERATE
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 syst ems shown in the “Diagnosis/service procedure” column
in this order.
Conditions of Vehicle (Operating Conditions)
• “ENGINE START BY I-KEY” and “LOCK/UNLOCK BY I-KEY” are ON when se tting on CONSULT-III.
• All doors are closed.
Symptom Diagnosis/service procedureReference page
All doors and ignition switch do not respond to
Intelligent Key command. 1. Check Intelligent Key function and battery inspection.
DLK-106
2. Check Intelligent Key unit power supply and ground circuit. DLK-68
3. Check remote keyless entry receiver.DLK-103
4. Check BCM power supply and ground circuit. DLK-68
5. Replace Intelligent Key unit.DLK-106
Revision: April 20092010 QX56

DOOR LOCK FUNCTION SYMPTOMSDLK-211
< SYMPTOM DIAGNOSIS > [WITH INTELLIGENT KEY SYSTEM]
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DOOR LOCK FUNCTION SYMPTOMS
DOOR LOCK AND UNLOCK SWITCH
DOOR LOCK AND UNLOCK SWITCH : Symptom TableINFOID:0000000005147033
DOOR LOCK/UNLOCK FUNCTION MALFUNCTION
NOTE:
• Before performing the diagnosis in the follo wing 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 detec ted, check systems shown in the “Diagnosis/service procedure” column
in this order.
Conditions of Vehicle (Operating Conditions)
• “LOCK/UNLOCK BY I-KEY” is ON when setting on CONSULT-III.
• Ignition switch is not depressed.
• All doors are closed.
Symptom Diagnosis/service procedureReference page
Power door lock does not operate with door lock
and unlock switch. 1. Check BCM Power supply and ground circuit.
BCS-33
2. Check door lock and unlock switch. DLK-74
3. Check door lock actuator (driver side)DLK-86
4. Check Intermittent Incident. GI-38
Power door lock does not operate with door key
cylinder operation.
(Power door lock operate properly with door lock
and unlock switch.)1. Check key cylinder switch.
DLK-79
2. Replace power window main switch.PWC-117
Specific door lock actuator does not operate.1a. Check driver side door lock actuator.
DLK-86
1b. Check passenger side door lock actuator.DLK-87
1c. Check rear LH side door lock actuator.DLK-88
1d. Check rear RH side door lock actuator.DLK-90
1e. Check back door lock operation (refer to back door).DLK-214
1f. Check glass hatch lock actuator. DLK-92
2. Check Intermittent Incident. GI-38
Door lock/unlock do not operate by request switch.1. Door switch check.
DLK-712. Ignition knob switch check.DLK-116
3. Replace Intelligent Key unit.SEC-120
Door lock/unlock does not operate by request
switch (LH side).1. Front door request switch LH check.
DLK-832. Front outside antenna LH check.DLK-97
3. Replace Intelligent Key unit.SEC-120
Door lock/unlock does not operate by request
switch (RH side).1. Front door request switch RH check.
DLK-832. Front outside antenna RH check.DLK-97
3. Replace Intelligent Key unit.SEC-120
Selective unlock function does not operate by front
door request switch LH (other door lock functions
operate properly).1.
Check “SELECT UNLOCK FUNCTION” setting in “WORK
SUPPORT”.
DLK-55
2. Replace Intelligent Key unit.
SEC-120
Revision: April 20092010 QX56

DLK-212
< SYMPTOM DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
DOOR LOCK FUNCTION SYMPTOMS
INTELLIGENT KEY
INTELLIGENT KEY : Symptom TableINFOID:0000000005147034
REMOTE KEYLESS ENTRY FUNCTION MALFUNCTION
NOTE:
• Before performing the diagnosis in the following table, check “Trouble Diagnosis Procedure”. Refer to
DLK-
6, "Work Flow".
• Make sure 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 syst ems shown in the “Diagnosis/service procedure” column
in this order.
Conditions of Vehicle (Operating Conditions)
• Ignition switch is not depressed.
• All doors are closed.
Auto lock function does not operate properly. 1.
Check “AUTO RELOCK TIMER” setting in “WORK SUP-
PORT”. DLK-53
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-120
Key reminder function does not operate properly.1.
Check “ANTI KEY LOCK IN FUNCTION” setting in
“WORK SUPPORT”.
DLK-53
2. Door switch check.
DLK-71
3a. Center console area antenna (rear) check. DLK-60
3b. Luggage area antenna check.DLK-62
3c. Center console area antenna (front) check.DLK-64
3d. Overhead console area antenna check. DLK-66
4. Front door lock actuator LH (door unlock sensor) check.DLK-81
5. Intelligent Key battery and function inspection.DLK-106
6. Replace Intelligent Key unit.SEC-120
Vehicle speed sensing auto LOCK operation does
not operate.1.
Ensure automatic door lock/unlock function (lock opera-
tion) is enabled. DLK-55
2. Check combination meter vehicle speed signal.
MWI-27
3. Check intermittent incident. GI-38
Ignition OFF interlock door UNLOCK function does
not operate.1.
Ensure automatic door lock/unlock function (unlock oper-
ation) is enabled. DLK-55
2. Check BCM for DTC.
BCS-54
3. Check intermittent incident. GI-38
SymptomDiagnosis/service procedureReference page
Symptom Diagnosis/service procedureReference
page
All of the remote keyless entry functions do not
operate. 1. Intelligent Key battery and function inspection.
DLK-106
2. Remote Keyless Entry function check.DLK-103
3. Replace Intelligent Key unit.SEC-120
Selective unlock function does not operate by In-
telligent Key remote control button.1.
Check “SELECT UNLOCK FUNCTION” setting in “WORK SUP-
PORT”.
DLK-53
2. Intelligent Key battery inspection.
DLK-106
3. Replace Intelligent Key unit.SEC-120
Revision: April 20092010 QX56

DOOR LOCK FUNCTION SYMPTOMSDLK-213
< 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-53
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-120
Key reminder function does not operate properly.1.
Check “ANTI KEY LOCK IN FUNCTION” setting in “WORK
SUPPORT”.
DLK-53
2. Door switch check.
DLK-71
3a. Center console area antenna (rear) check.DLK-60
3b. Luggage area antenna check.DLK-62
3c. Center console area antenna (front) check.DLK-64
3d. Overhead console area antenna 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-120
Panic alarm function does not operate properly.1. Check “PANIC ALARM DELAY” setting in “WORK SUPPORT”.
DLK-55
2. Theft warning operation check.DLK-216
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-120
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-120
Power window down function does not operate.1. Check “PW DOWN SET” setti
ng in “WORK SUPPORT”. DLK-552. Intelligent Key battery inspection. DLK-106
SymptomDiagnosis/service procedureReference
page
Revision: April 20092010 QX56

DLK-214
< SYMPTOM DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
BACK DOOR OPENER FUNCTION
BACK DOOR OPENER FUNCTION
BACK DOOR OPENER SWITCH
BACK DOOR OPENER SWITCH : Symptom TableINFOID:0000000005147035
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-143
Park switch —
Power window serial link —
Pinch strip system inspection DLK-135
Automatic operations are not carried out together with open/close
operations.
(Manual operations are normal). Power liftgate switch system inspection
DLK-143Back door close switch system inspectionDLK-139
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-135
During auto closing operations, if obstruction is detected, the door
does not operate in reverse. Back door motor assembly
DLK-247
During close or cinch operations, the door does not operate in re-
verse if the back door handle is operated. Handle switch system
DLK-142
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-135
Auto closure does not operate. Half-latch switch system
DLK-137Cinch latch motor systemDLK-141
Handle switch systemDLK-142
The back door does not open.
(Closure motor rotation is not reversed). Open switch system
DLK-138
Handle switch systemDLK-142
Warning chime does not sound. Back door warning chime systemDLK-136
Auto closure operation works, but the back door is not fully closed Close switch system
DLK-139
Handle switch systemDLK-142
Cinch latch motor systemDLK-141
Back door latch assembly mechanism dam-
aged or worn.DLK-247
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-59
Revision: April 20092010 QX56

BACK DOOR OPENER FUNCTIONDLK-215
< SYMPTOM DIAGNOSIS > [WITH INTELLIGENT KEY SYSTEM]
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BACK DOOR HANDLE : Symptom TableINFOID:0000000005147036
BACK DOOR OPEN FUNCTION MALFUNCTION
NOTE:
• Before performing the diagnosis in the follo wing 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 syst ems shown in the “Diagnosis/service procedure” column
in this order.
Conditions of Vehicle (Operating Conditions)
• Vehicle is in park.
INTELLIGENT KEY
INTELLIGENT KEY : Symptom TableINFOID:0000000005147037
BACK DOOR OPEN FUNCTION MALFUNCTION
NOTE:
• Before performing the diagnosis in the follo wing 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)
• Ignition switch is not depressed.
Symptom Diagnosis/service procedureReference page
Back door open function does not operate by
back door switch (doors unlocked). 1. Refer to diagnosis chart.
DLK-214
2. Check Intermittent Incident. GI-38
Back door open function does not operate by
back door switch only.
(doors locked but Intelligent Key present).1. Outside key antenna check.
DLK-972. Intelligent Key unit power back door input signal.DLK-142
3. Intelligent Key unit power back door output signal.DLK-143
4. Intelligent Key battery and function check.DLK-106
SymptomDiagnosis/service procedureReference page
Back door open function does not operate
by Intelligent Key. 1. Check Intelligent Key battery inspection.
DLK-106
2. Intelligent Key unit power and ground check. DLK-68
3. Check intermittent incident. GI-38
Revision: April 20092010 QX56

DLK-218
< SYMPTOM DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
WARNING FUNCTION SYMPTOMS
Door lock operation warning chime does
not operate.1. Check door switch.
DLK-71
2. Check ignition knob switch.DLK-116
3. Check Intelligent Key warning buzzer. DLK-95
4. Check inside key antennasCenter console area (rear)
DLK-60Luggage areaDLK-62
Center console area (front)DLK-64
Overhead console areaDLK-66
5. Check Intermittent Incident. GI-38
SymptomDiagnosis/service procedure Reference
page
Revision: April 20092010 QX56

KEY REMINDER FUNCTION SYMPTOMSDLK-219
< SYMPTOM DIAGNOSIS > [WITH INTELLIGENT KEY SYSTEM]
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KEY REMINDER FUNCTION SYMPTOMS
Symptom TableINFOID:0000000005147039
KEY REMINDER FUNCTION MALFUNCTION
NOTE:
• Before performing the diagnosis in the following table, check “Work flow”. Refer to DLK-6, "
Work Flow".
• If the following symptoms” are detected, check systems shown in the “Diagnosis/service procedure” column in this order.
Conditions of Vehicle (Operating Conditions)
• “LOCK/UNLOCK BY I-KEY” is ON when setting on CONSULT-III.
• “ANSWER BACK FUNCTION” is ON when setting on CONSULT-III.
• Ignition switch is in OFF position.
• All doors are closed.
• Ignition switch is not depressed.
Symptom Diagnosis/service procedureReference page
Key reminder function does not operate. 1.
Check “ANTI KEY LOCK IN FUNCTI”setting in “WORK SUP-
PORT”. DLK-55
2. Check door switch.
DLK-71
3. Check inside key antennasCenter console area (rear)
DLK-60Luggage areaDLK-62
Center console area (front)DLK-64
Overhead console areaDLK-66
4. Check unlock sensor. DLK-81
5. Check Intelligent Key battery inspection.DLK-106
6. Check Intermittent Incident. GI-38
Revision: April 20092010 QX56

DLK-220
< SYMPTOM DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
HAZARD FUNCTION
HAZARD FUNCTION
Symptom TableINFOID:0000000005147040
HAZARD AND BUZZER REMINDER FUNCTION MALFUNCTION
NOTE:
• Before performing the diagnosis in the follo
wing table, check “Work flow”. Refer to DLK-6, "
Work Flow".
• If the following symptoms” are detected, check systems shown in the “Diagnosis/service procedure” column in this order.
Conditions of Vehicle (Operating Conditions)
• “LOCK/UNLOCK BY I-KEY” is ON when setting on CONSULT-III.
• “ANSWER BACK FUNCTION” is ON when setting on CONSULT-III.
• Ignition switch is in OFF position.
• All doors are closed.
• Ignition switch is not depressed.
Symptom Diagnosis/service procedureReference
page
Hazard reminder does not operate by request switch.
(Buzzer reminder operate.) 1.
Check “HAZARD ANSWER BACK” setting in “WORK
SUPPORT”.
DLK-55
2. Check hazard function.
DLK-112
3. Check Intermittent incident. GI-38
Hazard reminder does not operate by Intelligent Key.
(Buzzer reminder operate.)1.
Check “HAZARD ANSWER BACK” setting in “WORK
SUPPORT”.
DLK-55
2. Check hazard function.
DLK-112
3. Check Intelligent Key battery inspection.DLK-106
Buzzer reminder does not operate by request switch.
(Hazard reminder operate.)1.
Check “ANS BACK I-KEY LOCK” or “ANS BACK I-KEY
UNLOCK” setting in “WORK SUPPORT”. DLK-55
2. Check Intelligent Key warning buzzer.
DLK-95
3. Check Intermittent incident. GI-38
Revision: April 20092010 QX56