Nissan Maxima. Manual - part 339

KEY SLOT

DLK-75

< DTC/CIRCUIT DIAGNOSIS >

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KEY SLOT

Description

INFOID:0000000009471648

Detects whether Intelligent Key is inserted.

Immobilizer antenna amp checks Intelligent Key transponder.

Component Function Check

INFOID:0000000009471649

1.

CHECK FUNCTION

 With CONSULT

Check KEY SW -SLOT in Data Monitor mode with CONSULT.

Is the inspection result normal?

YES

>> Key slot is OK.

NO

>> Refer to 

DLK-75, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000009471650

Regarding Wiring Diagram information, refer to 

DLK-161, "Wiring Diagram"

.

1.

CHECK KEY SLOT POWER SUPPLY CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect key slot connector.

3. Check voltage between key slot connector and ground.

Is the inspection result normal?

YES

>> GO TO 2

NO

>> Repair or replace key slot power supply circuit.

2.

CHECK KEY SLOT GROUND CIRCUIT

Check continuity between key slot connector and ground.

Is the inspection result normal?

YES

>> GO TO 3

NO

>> Repair or replace key slot ground circuit.

3.

CHECK KEY SLOT CIRCUIT

1. Disconnect BCM connector.

Monitor item

Condition

KEY SW-SLOT

Key is inserted in key slot: ON

Key is removed from key slot: OFF

Terminals

Voltage (V)

(Approx.)

(+)

(–)

Key slot connector

Terminal

M40

1

Ground

Battery voltage

5

Key slot connector

Terminal

Ground

Continuity

M40

7

Yes

ALKIA0344ZZ

DLK-76

< DTC/CIRCUIT DIAGNOSIS >

KEY SLOT

2. Check continuity between BCM connector and key slot connec-

tor.

3. Check continuity between BCM connector and ground.

Is the inspection result normal?

YES

>> GO TO 4

NO

>> Repair or replace harness between BCM and key slot.

4.

CHECK KEY SLOT

Refer to 

DLK-76, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 5

NO

>> Replace key slot.

5.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-41, "Intermittent Incident"

.

>> Inspection End.

Component Inspection

INFOID:0000000009471651

1.

CHECK KEY SLOT

Check key slot.

Is the inspection result normal?

YES

>> Inspection End.

NO

>> Replace key slot. 

BCM connector

Terminal

Key slot con-

nector

Terminal

Continuity 

A: M18

29

C: M40

11

Yes

B: M19

68

2

69

3

ALKIA0345ZZ

BCM connector

Terminal

Continuity 

A: M18

29

Ground

No

B: M19

68

69

Terminal

Condition

Continuity

Key slot

1

11

Intelligent Key inserted

Yes

Intelligent Key removed

No

KEY CYLINDER SWITCH

DLK-77

< DTC/CIRCUIT DIAGNOSIS >

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KEY CYLINDER SWITCH

Description

INFOID:0000000009471652

The main power window and door lock/unlock switch detects condition of the door key cylinder switch and

transmits to BCM as the LOCK or UNLOCK signal.

Component Function Check

INFOID:0000000009471653

1.

CHECK DOOR KEY CYLINDER SWITCH INPUT SIGNAL

Check KEY CYL UN-SW, KEY CYL UN-SW in “DATA MONITOR” mode for “POWER DOOR LOCK SYSTEM”

with CONSULT. Refer to 

DLK-53, "DOOR LOCK : CONSULT Function (BCM - DOOR LOCK)"

.

Is the inspection result normal?

YES

>> Key cylinder switch is OK.

NO

>> Refer to 

DLK-77, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000009471654

Regarding Wiring Diagram information, refer to 

DLK-150, "Wiring Diagram"

.

1.

CHECK DOOR KEY CYLINDER SWITCH INPUT SIGNAL

1. Turn ignition switch ON.

2. Check voltage between main power window and door lock/unlock switch connector and ground.

Is the inspection result normal?

YES

>> GO TO 3

NO

>> GO TO 2

2.

CHECK DOOR KEY CYLINDER SIGNAL CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect main power window and door lock/unlock switch connector and front door lock assembly LH

(key cylinder switch) connector.

3. Check continuity between main power window and door lock/unlock switch connector and front door lock

assembly LH (key cylinder switch) connector.

Monitor item

Condition

KEY CYL LK-SW

Lock

: ON

Neutral / Unlock

: OFF

KEY CYL UN-SW

Unlock

: ON

Neutral / Lock

: OFF

Terminals

Key position

Voltage (V)

(Approx.)

(+)

(–)

Main power window and 

door lock/unlock switch 

connector

Terminal 

D7

4

Ground

Lock

0

Neutral / Unlock

5

6

Unlock

0

Neutral / Lock

5

DLK-78

< DTC/CIRCUIT DIAGNOSIS >

KEY CYLINDER SWITCH

4. Check continuity between main power window and door lock/unlock switch connector and ground.

Is the inspection result normal?

YES

>> GO TO 3

NO

>> Repair or replace harness.

3.

CHECK DOOR KEY CYLINDER SWITCH GROUND CIRCUIT

Check continuity between front door lock assembly LH connector and ground.

Is the inspection result normal?

YES

>> GO TO 4

NO

>> Repair or replace harness.

4.

CHECK DOOR KEY CYLINDER SWITCH

Check door key cylinder switch. 

Refer to 

DLK-78, "Component Inspection"

.

Is the inspection result normal?

YES

>> Check intermittent incident. Refer to 

GI-41, "Intermittent Incident"

.

NO

>> Replace front door lock assembly LH (key cylinder switch). Refer to 

DLK-221, "FRONT DOOR

LOCK : Removal and Installation"

. After that,  Refer to 

DLK-79, "Special Repair Requirement"

.

Component Inspection

INFOID:0000000009471655

COMPONENT INSPECTION

1.

CHECK DOOR KEY CYLINDER SWITCH

Check front door lock assembly LH (key cylinder switch).

Is the inspection result normal?

YES

>> Key cylinder switch is OK.

NO

>> Replace front door lock assembly LH (key cylinder switch). Refer to 

DLK-221, "FRONT DOOR

LOCK : Removal and Installation"

. After that, refer to 

DLK-79, "Special Repair Requirement"

.

Main power win-

dow and door 

lock/unlock switch 

connector

Terminal

Front door lock assem-

bly LH (key cylinder 

switch) connector

Terminal

Continuity

D7

4

D10

6

Yes

6

5

Power window main switch connector

Terminal

Ground

Continuity 

D7

4

No

6

Front door lock assembly LH 

connector

Terminal

Ground

Continuity 

D10

4

Yes

Terminal

Key position

Continuity

Front door lock assembly LH (key 

cylinder switch) connector

5 

4

Unlock

Yes

Neutral / Lock

No

6

Lock

Yes

Neutral / Unlock

No