Infiniti QX56 (JA60). Manual - part 260

DOOR LOCK FUNCTION SYMPTOMS

DLK-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 Table

INFOID:0000000005147033

DOOR LOCK/UNLOCK 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)

• “LOCK/UNLOCK BY I-KEY” is ON when setting on CONSULT-III.

• Ignition switch is not depressed.

• All doors are closed.

Symptom

Diagnosis/service procedure

Reference 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-71

2.

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-83

2.

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-83

2.

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

DLK-212

< SYMPTOM DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

DOOR LOCK FUNCTION SYMPTOMS

INTELLIGENT KEY
INTELLIGENT KEY : Symptom Table

INFOID: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 systems 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

Symptom

Diagnosis/service procedure

Reference page

Symptom

Diagnosis/service procedure

Reference 

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

DOOR LOCK FUNCTION SYMPTOMS

DLK-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-123

2.

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” setting in “WORK SUPPORT”.

DLK-55

2.

Intelligent Key battery inspection.

DLK-106

Symptom

Diagnosis/service procedure

Reference 

page

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 Table

INFOID: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 systems

Refer 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-143

Back door close switch system inspection

DLK-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-103

Power window serial link

—

Pinch strip system inspection

DLK-135

Auto closure does not operate.

Half-latch switch system

DLK-137

Cinch latch motor system

DLK-141

Handle switch system

DLK-142

The back door does not open.
(Closure motor rotation is not reversed).

Open switch system

DLK-138

Handle switch system

DLK-142

Warning chime does not sound.

Back door warning chime system

DLK-136

Auto closure operation works, but the back door is not fully closed

Close switch system

DLK-139

Handle switch system

DLK-142

Cinch latch motor system

DLK-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-127

Glass hatch lock actuator check

DLK-92

Replace BCM

BCS-59