Nissan Qashqai (2007-2010). Manual — part 1212

SEC-48

< COMPONENT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

KEY SWITCH

KEY SWITCH

Description

INFOID:0000000001094466

Key switch detects that mechanical key is inserted into the key cylinder, and then transmits the signal to BCM
and Intelligent Key unit.

Component Function Check

INFOID:0000000001094467

1.

CHECK KEY SWITCH INPUT SIGNAL

Check key switch (“KEY SW”) in “DATA MONITOR” mode with CONSULT-III. Refer to

DLK-62, "DOOR LOCK

: CONSULT-III Function (BCM - DOOR LOCK)"

.

Is the inspection result normal?

YES

>> Key switch is OK.

NO

>> Refer to

SEC-48, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000001094468

1.

CHECK KEY SWITCH INPUT SIGNAL

1.

Turn ignition switch OFF.

2.

Disconnect Intelligent Key unit and BCM connector.

3.

Check voltage between Intelligent Key unit harness connector and ground.

4.

Check voltage between BCM harness connector and ground.

Is the inspection result normal?

YES

>> Check intermittent incident. Refer to

GI-39, "Intermittent Incident"

.

NO

>> GO TO 2.

2.

CHECK KEY SWITCH POWER SUPPLY CIRCUIT

1.

Remove mechanical key from key cylinder.

2.

Disconnect key switch connector.

3.

Check voltage between key switch harness connector and ground.

Monitor item

Condition

KEY SW

Insert mechanical key into key cylinder

: ON

Remove mechanical key from key cylinder

: OFF

Terminals

Condition

Voltage (V)

(Approx.)

(+)

(–)

Intelligent Key unit con-

nector

Terminal

M40

7

Ground

Insert mechanical key into key

cylinder

Battery voltage

Remove mechanical key from

key cylinder

0

Terminals

Condition

Voltage (V)

(Approx.)

(+)

(–)

BCM connector

Terminal

M65

36

Ground

Insert mechanical key into key

cylinder

Battery voltage

Remove mechanical key from

key cylinder

0

KEY SWITCH

SEC-49

< COMPONENT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

C

D

E

F

G

H

I

J

L

M

A

B

SEC

N

O

P

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace harness.

3.

CHECK KEY SWITCH SIGNAL CIRCUIT

1.

Check continuity between Intelligent Key unit harness connector and key switch connector.

2.

Check continuity between BCM harness connector and key switch connector.

3.

Check continuity between key switch connector and ground.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace harness.

4.

CHECK KEY SWITCH

Check key switch function.
Refer to

SEC-49, "Component Inspection"

.

Is the inspection result normal?

YES

>> Check intermittent incident. Refer to

GI-39, "Intermittent Incident"

.

NO

>> Replace key switch.

Component Inspection

INFOID:0000000001094469

COMPONENT INSPECTION

1.

CHECK KEY SWITCH

Check continuity between key switch terminals.

Is the inspection result normal?

YES

>> Key switch is OK.

NO

>> Replace key switch.

Terminals

Voltage (V)

(Approx.)

(+)

(–)

Key switch connector

Terminal

M25

2

Ground

Battery voltage

Intelligent Key unit connector

Terminal

Key switch connector

Terminal

Continuity

M40

7

M25

1

Exists

BCM connector

Terminal

Key switch connector

Terminal

Continuity

M65

36

M25

1

Exists

Key switch connector

Terminal

Ground

Continuity

M25

1

Ground

Does not exist

Terminal

Condition

Continuity

key switch connector

1

2

Insert mechanical key into key cylinder

Exists

Remove mechanical key from key cylinder

Does not exist

SEC-50

< COMPONENT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

IGNITION KNOB SWITCH

IGNITION KNOB SWITCH

Description

INFOID:0000000001094769

Ignition knob switch detects that ignition knob is pressed, and then transmits the signal to Intelligent Key unit.

Component Function Check

INFOID:0000000001094773

1.

CHECK IGNITION KNOB SWITCH INPUT SIGNAL

Check ignition knob switch (“PUSH SW”) in “DATA MONITOR” mode with CONSULT-III. Refer to

DLK-62,

"DOOR LOCK : CONSULT-III Function (BCM - DOOR LOCK)"

.

Is the inspection result normal?

YES

>> Ignition knob switch is OK.

NO

>> Refer to

SEC-48, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000001096673

1.

CHECK IGNITION KNOB SWITCH INPUT SIGNAL

1.

Turn ignition switch OFF.

2.

Disconnect Intelligent Key unit and BCM connector.

3.

Check voltage between Intelligent Key unit harness connector and ground.

Is the inspection result normal?

YES

>> Check intermittent incident. Refer to

GI-39, "Intermittent Incident"

.

NO

>> GO TO 2.

2.

CHECK IGNITION KNOB SWITCH POWER SUPPLY CIRCUIT

1.

Disconnect ignition knob switch connector.

2.

Check voltage between ignition knob switch harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace harness.

3.

CHECK IGNITION KNOB SWITCH SIGNAL CIRCUIT

1.

Check continuity between Intelligent Key unit harness connector and ignition knob switch connector.

Monitor item

Condition

PUSH SW

Ignition knob switch is pressed

: ON

Ignition knob switch is released

: OFF

Terminals

Condition

Voltage (V)

(Approx.)

(+)

(–)

Intelligent Key unit con-

nector

Terminal

M40

27

Ground

Ignition knob switch is pressed

Battery voltage

Ignition knob switch is released

0

Terminals

Voltage (V)

(Approx.)

(+)

(–)

Ignition knob switch connector

Terminal

M25

4

Ground

Battery voltage

Intelligent Key unit connector

Terminal

Ignition knob switch connector

Terminal

Continuity

M40

27

M25

3

Exists

IGNITION KNOB SWITCH

SEC-51

< COMPONENT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

C

D

E

F

G

H

I

J

L

M

A

B

SEC

N

O

P

2.

Check continuity between ignition knob switch connector and ground.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace harness.

4.

CHECK IGNITION KNOB SWITCH

Check ignition knob switch function.
Refer to

SEC-49, "Component Inspection"

.

Is the inspection result normal?

YES

>> Check intermittent incident. Refer to

GI-39, "Intermittent Incident"

.

NO

>> Replace ignition knob switch.

Component Inspection

INFOID:0000000001094772

1.

CHECK IGNITION KNOB SWITCH

1.

Turn ignition switch OFF.

2.

Disconnect ignition knob switch harness connector.

3.

Check continuity between ignition knob switch terminals under the following conditions.

Is the inspection result normal?

YES

>> INSPECTION END.

NO

>> Replace ignition knob switch.

Ignition knob switch connector

Terminal

Ground

Continuity

M25

3

Does not exist

Ignition knob switch

Condition

Continuity

Connector

Terminal

M25

3

4

Ignition knob switch is pressed

Exists

Ignition knob switch is released

Does not exist