Nissan Pathfinder (2008 year). Manual - part 157

 

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Nissan Pathfinder (2008 year). Manual - part 157

 

 

BACK DOOR CONTROL UNIT

DLK-157

< ECU DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

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Fail Safe

INFOID:0000000001563604

Fail-safe operation

The back door system operation will be interrupted if the back door control unit loses power.

ALKIA0997GB

DLK-158

< ECU DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

HOMELINK UNIVERSAL TRANSCEIVER

HOMELINK UNIVERSAL TRANSCEIVER

Wiring Diagram

INFOID:0000000001563605

ALKWA0149GB

HOMELINK UNIVERSAL TRANSCEIVER

DLK-159

< ECU DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

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DLK

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ALKIA0998GB

DLK-160

< SYMPTOM DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

INTELLIGENT KEY SYSTEM SYMPTOMS

SYMPTOM DIAGNOSIS

INTELLIGENT KEY SYSTEM SYMPTOMS

Symptom Table

INFOID:0000000001563606

ALL FUNCTIONS OF INTELLIGENT KEY SYSTEM DO NOT OPERATE

NOTE:
• Before performing the diagnosis in the following table, check “WORK FLOW”. Refer to 

DLK-8, "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)

• “ENGINE START BY I-KEY” and “LOCK/UNLOCK BY I-KEY” are ON when setting on CONSULT-III.
• All doors are closed.

Symptom

Diagnosis/service procedure

Reference page

All doors and ignition switch do not respond to 
Intelligent Key comand.

1.

Check Intelligent Key function and battery inspection.

DLK-87

2.

Check Intelligent Key unit power supply and ground circuit.

DLK-46

3.

Check remote keyless entry receiver.

DLK-84

4.

Check BCM power supply and ground circuit.

DLK-46

5.

Replace Intelligent Key unit.

DLK-87

DOOR LOCK FUNCTION SYMPTOMS

DLK-161

< 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:0000000001563607

DOOR LOCK/UNLOCK FUNCTION MALFUNCTION

NOTE:
• Before performing the diagnosis in the following table, check “WORK FLOW”. Refer to 

DLK-8, "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-32

2.

Check door lock and unlock switch.

DLK-51

3.

Check door lock actuator (driver side)

DLK-64

4.

Check Intermittent Incident.

GI-51

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-55

2.

Replace power window main switch.

PWC-70

Specific door lock actuator does not operate.

1a.

Check driver side door lock actuator.

DLK-64

1b.

Check passenger side door lock actuator.

DLK-65

1c.

Check rear LH side door lock actuator.

DLK-66

1d.

Check rear RH side door lock actuator.

DLK-68

1e.

Check back door lock actuator.

DLK-69

2.

Check Intermittent Incident.

GI-51

Door lock/unlock do not operate by request switch.

1.

Door switch check.

DLK-48

2.

Ignition knob switch check.

DLK-97

3.

Replace Intelligent Key unit.

SEC-93

Door lock/unlock does not operate by request 
switch (LH side).

1.

Front door request switch LH check.

DLK-59

2.

Front outside antenna LH check.

DLK-78

3.

Replace Intelligent Key unit.

SEC-93

Door lock/unlock does not operate by request 
switch (RH side).

1.

Front door request switch RH check.

DLK-59

2.

Front outside antenna RH check.

DLK-78

3.

Replace Intelligent Key unit.

SEC-93

Door lock/unlock does not operate by request 
switch (back door).

1.

Back door request switch check.

DLK-61

2.

Rear bumper antenna check.

DLK-78

3.

Replace Intelligent Key unit.

SEC-93

Rear and back door lock actuators do not operate.

1.

Passenger select unlock relay check.

DLK-71

2.

Check Intermittent Incident.

GI-51

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-30

2.

Replace Intelligent Key unit.

SEC-93

DLK-162

< SYMPTOM DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

DOOR LOCK FUNCTION SYMPTOMS

INTELLIGENT KEY

INTELLIGENT KEY : Symptom Table

INFOID:0000000001563608

REMOTE KEYLESS ENTRY FUNCTION MALFUNCTION

NOTE:
• Before performing the diagnosis in the following table, check “Trouble Diagnosis Procedure”. Refer to 

DLK-

8, "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-30

2.

Key switch check (BCM).

DLK-96

3.

Ignition knob switch check.

DLK-97

4.

Door switch check.

DLK-48

5.

Replace Intelligent Key unit.

SEC-93

Key reminder function does not operate properly.

1.

Check “ANTI KEY LOCK IN FUNCTION” setting in 
“WORK SUPPORT”.

DLK-30

2.

Door switch check.

DLK-48

3a.

Inside key antenna 1 (instrument panel) check.

DLK-40

3b.

Inside key antenna 2 (luggage compartment) check.

DLK-42

3c.

Inside key antenna 3 (center console)  check.

DLK-44

4.

Front door lock actuator LH (door unlock sensor) check.

DLK-57

5.

Intelligent Key battery and function inspection.

DLK-87

6.

Replace Intelligent Key unit.

SEC-93

Symptom

Diagnosis/service procedure

Reference page

Symptom

Diagnosis/service procedure

Reference 

page

All of the remote keyless entry functions do not op-
erate.

1.

Intelligent Key battery and function inspection.

DLK-87

2.

Remote Keyless Entry function check.

DLK-84

3.

Replace Intelligent Key unit.

SEC-93

Selective unlock function does not operate by Intel-
ligent Key remote control button.

1.

Check “SELECT UNLOCK FUNCTION” setting in “WORK 
SUPPORT”.

DLK-30

2.

Intelligent Key battery inspection.

DLK-87

3.

Replace Intelligent Key unit.

SEC-93

Auto lock function does not operate properly.

1.

Check “AUTO RELOCK TIMER” setting in “WORK SUPPORT”.

DLK-30

2.

Key switch check (BCM).

DLK-96

3.

Ignition knob switch check.

DLK-97

4.

Door switch check.

DLK-48

5.

Replace Intelligent Key unit.

SEC-93

DOOR LOCK FUNCTION SYMPTOMS

DLK-163

< SYMPTOM DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

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KEY WARNING LAMP (GREEN) ILLUMINATES

NOTE:
• Before performing the diagnosis in the following table, check “Trouble Diagnosis Procedure”. Refer to 

DLK-

8, "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 “Diagnoses/service procedure” col-

umn in this order.

Conditions of Vehicle (Operating Conditions)

• Intelligent Key is registered.
• Key is not inserted in ignition switch.
• One or more registered Intelligent Keys are in the vehicle.

KEY WARNING LAMP (RED) ILLUMINATES

NOTE:
• Before performing the diagnosis in the following table, check “Trouble Diagnosis Procedure”. Refer to 

DLK-

8, "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 “Diagnoses/service procedure” col-

umn in this order.

Conditions of Vehicle (Operating Conditions)

• Intelligent Key is registered.
• Key is not inserted in ignition switch.
• One or more registered Intelligent Keys are in the vehicle.

Key reminder function does not operate properly.

1.

Check “ANTI KEY LOCK IN FUNCTION” setting in “WORK 
SUPPORT”.

DLK-30

2.

Door switch check.

DLK-48

3a.

Inside key antenna 1 (instrument panel) check.

DLK-40

3b.

Inside key antenna 2 (luggage compartment) check.

DLK-42

3c.

Inside key antenna 3 (center console) check.

DLK-44

4.

Front door lock actuator LH (door unlock sensor) check.

DLK-57

5.

Intelligent Key battery inspection.

DLK-87

6.

Replace Intelligent Key unit.

SEC-93

Panic alarm function does not operate properly.

1.

Check “PANIC ALARM DELAY” setting in “WORK SUPPORT”.

DLK-30

2.

Theft warning operation check.

SEC-17

3.

Intelligent Key battery inspection.

DLK-87

4.

Key switch check (BCM).

DLK-96

5.

Ignition knob switch check.

DLK-97

6.

Replace Intelligent Key unit.

SEC-93

Back door open function does not operate properly.

1.

Back door diagnosis.

DLK-165

Power window down function does not operate.

1.

Check “PW DOWN SET” setting in “WORK SUPPORT”.

DLK-30

2.

Intelligent Key battery inspection.

DLK-87

Symptom

Diagnosis/service procedure

Reference 

page

Symptom

Diagnosis/service procedure

Reference page

Ignition switch does not turn on with Intelligent Key. 
[KEY warning lamp (green) illuminates].

1. Steering lock solenoid check.

DLK-80

2. Replace Intelligent Key unit.

SEC-93

DLK-164

< SYMPTOM DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

DOOR LOCK FUNCTION SYMPTOMS

KEY WARNING LAMP DOES NOT ILLUMINATE

NOTE:
• Before performing the diagnosis in the following table, check “Trouble Diagnosis Procedure”. Refer to 

DLK-

8, "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 “Diagnoses/service procedure” col-

umn in this order.

• Check if ignition switch turns using mechanical key. If it turns, check if “ENGINE START BY I-KEY” in

“WORK SUPPORT” mode is ON.

Conditions of Vehicle (Operating Conditions)

• Intelligent Key is registered.
• Key is not inserted in ignition switch.
• One or more registered Intelligent Keys are in the vehicle.

Symptom

Diagnosis/service procedure

Reference page

Ignition switch does not turn on with Intelligent Key. 
[KEY warning lamp (red) illuminates].

1a. Inside key antenna 1 check.

DLK-40

1b. Inside key antenna 2 check.

DLK-42

1c. Inside key antenna 3 check.

DLK-44

2. Replace Intelligent Key unit.

SEC-93

Symptom

Diagnosis/service procedure

Reference page

Ignition switch does not turn on with Intelligent 
Key. [KEY warning lamp does not illuminate].

1.

Intelligent Key unit power supply and ground circuit check.

DLK-46

2.

Ignition knob switch check.

DLK-97

3.

Key switch check.

DLK-94

4.

Replace Intelligent Key unit.

SEC-93

 

 

 

 

 

 

 

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