Nissan Versa Sedan. Instruction - part 899

WCS-38

< DTC/CIRCUIT DIAGNOSIS >

SEAT BELT BUCKLE SWITCH SIGNAL CIRCUIT

2.

 CHECK SEAT BELT BUCKLE SWITCH LH CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect combination meter and seat belt buckle switch LH.

3. Check continuity between combination meter harness connector M82 terminal 9 and seat belt buckle

switch LH harness connector B13 terminal 1.

4. Check continuity between combination meter harness connector M82 terminal 9 and ground.

Is the inspection result normal?

YES

>> GO TO 3

NO

>> Repair or replace harness.

3.

 CHECK SEAT BELT BUCKLE SWITCH LH GROUND CIRCUIT

Check continuity between seat belt buckle switch LH harness connector B13 terminal 2 and ground.

Is the inspection result normal?

YES

>> Inspection End.

NO

>> Repair or replace harness.

TYPE B : Component Inspection

INFOID:0000000009269306

1.

 CHECK SEAT BELT BUCKLE SWITCH LH

1. Turn ignition switch OFF.

2. Disconnect the seat belt buckle switch LH.

3. Check continuity between the seat belt buckle switch LH terminals 1 and 2.

Is the inspection result normal?

YES

>> Inspection End.

NO

>> Replace the seat belt buckle switch LH.

9 - 1

: Continuity should exist.

9 - Ground

: Continuity should not exist.

2 - Ground

: Continuity should exist.

1– 2
When seat belt is 
fastened

: Continuity should not exist.

When seat belt is 
unfastened

: Continuity should exist.

WCS

KEY SWITCH SIGNAL CIRCUIT (WITHOUT INTELLIGENT KEY)

WCS-39

< DTC/CIRCUIT DIAGNOSIS >

C

D

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F

G

H

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KEY SWITCH SIGNAL CIRCUIT (WITHOUT INTELLIGENT KEY)

Description

INFOID:0000000009269311

Transmits a key switch signal to the BCM.

Component Function Check

INFOID:0000000009269312

1.

 CHECK BCM INPUT SIGNAL

Select “DATA MONITOR” for “BCM” and check the “KEY ON SW” monitor value.

Is the inspection result normal?

YES

>> Inspection End.

NO

>> Refer to 

WCS-39, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000009269313

Regarding Wiring Diagram information, refer to 

WCS-23, "Wiring Diagram"

.

1.

 CHECK FUSE

Check if the key switch 10A fuse [No. 8, located in the fuse block (J/B)] is blown.
Is the fuse blown?

YES

>> Replace the fuse after repairing the affected circuit.

NO

>> GO TO 2

2.

 CHECK BCM INPUT SIGNAL

Check voltage between BCM harness connector M18 terminal 37 and ground.

Is the inspection result normal?

YES

>> Inspection End.

NO

>> GO TO 3

3.

 CHECK KEY SWITCH CIRCUIT 

1. Disconnect BCM connector M18 and key switch.

2. Check continuity between BCM harness connector M18 terminal 37 and key switch harness connector

M27 terminal 1.

3. Check continuity between BCM harness connector M18 terminal 37 and ground.

KEY ON SW
When key is inserted into key cylinder

: ON

When key is removed from key cylinder : OFF

Terminals

Condition

Voltage

(Approx.)

(+)

(

−)

BCM

connector

Terminal

M18

37

Ground

Key is inserted

Battery voltage

Key is removed

0V

BCM

Key switch

Continuity

Connector

Terminal

Connector

Terminal

M18

37

M27

1

Yes

WCS-40

< DTC/CIRCUIT DIAGNOSIS >

KEY SWITCH SIGNAL CIRCUIT (WITHOUT INTELLIGENT KEY)

Is the inspection result normal?

YES

>> GO TO 4

NO

>> Repair or replace harness.

4.

 CHECK KEY SWITCH POWER SUPPLY CIRCUIT

Check voltage between key switch harness connector M27 terminal 2 and ground.

Is the inspection result normal?

YES

>> Replace key switch.

NO

>> Repair or replace harness.

Component Inspection

INFOID:0000000009269314

1.

 CHECK KEY SWITCH

1. Turn ignition switch OFF.

2. Disconnect key switch.

3. Check continuity between key switch terminals 1 and 2.

Is the inspection result normal?

YES

>> Inspection End.

NO

>> Replace key switch.

BCM

Ground

Continuity

Connector

Terminal

M18

37

No

Terminals

Voltage

(Approx.)

(+)

(–)

Key switch 

Terminal

M27

2

Ground

Battery voltage

1 –2
When key is inserted 
into key cylinder

: Continuity should exist.

When key is removed 
from key cylinder

: Continuity should not exist.

WCS

PARKING BRAKE SWITCH SIGNAL CIRCUIT

WCS-41

< DTC/CIRCUIT DIAGNOSIS >

C

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PARKING BRAKE SWITCH SIGNAL CIRCUIT

TYPE A
TYPE A : Description

INFOID:0000000009269319

Transmits the parking brake switch signal to the combination meter.

TYPE A : Component Function Check

INFOID:0000000009269320

1.

COMBINATION METER INPUT SIGNAL

1. Select “METER/M&A” on CONSULT.

2. Monitor “PKB SW” of “DATA MONITOR” while applying and releasing the parking brake.

Is the inspection result normal?

YES

>> Inspection End.

NO

>> Refer to 

WCS-41, "TYPE A : Diagnosis Procedure"

.

TYPE A : Diagnosis Procedure

INFOID:0000000009269321

Regarding Wiring Diagram information, refer to 

WCS-23, "Wiring Diagram"

.

1.

CHECK COMBINATION METER INPUT SIGNAL

1. Turn ignition switch ON.

2. Check the voltage between combination meter harness connector and ground.

Is the inspection result normal?

YES

>> Inspection End.

NO

>> GO TO 2.

2.

CHECK PARKING BRAKE SWITCH SIGNAL CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect combination meter connector and parking brake switch connector. 

3. Check continuity between combination meter harness connector and parking brake switch harness con-

nector.

4. Check continuity between combination meter harness connector and ground.

PKB SW
Parking brake depressed

: ON

Parking brake released

: OFF

(+)

(

−)

Condition

Voltage

(Approx.)

Combination meter

Ground

Connector

Terminal

M24

37

Ignition 
switch ON

When parking brake is applied

0 V

When parking brake is released

12 V

Terminals

Continuity

Combination meter

Parking brake switch

Connector

Terminal

Connector

Terminal

M24

37

M17

1

Yes