Nissan Sentra. Manual - part 652

MWI-54

< DTC/CIRCUIT DIAGNOSIS >

POWER SUPPLY AND GROUND CIRCUIT

NO

>> GO TO 2.

2.

CHECK POWER SUPPLY CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect BCM connectors.

3. Check voltage between BCM connector and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair harness or connector.

3.

CHECK GROUND CIRCUIT

Check continuity between BCM connector and ground.

Is the inspection result normal?

YES

>> Inspection End.

NO

>> Repair harness or connector.

BCM

Ground

Ignition switch position

Connector

Terminal

OFF

ACC

ON

M20

63

Battery voltage

Battery voltage

Battery voltage

70

M21

11

—

0 V

Battery voltage

Battery voltage

BCM

Ground

Continuity

Connector

Terminal

M20

65

—

Yes

MWI

STEERING SWITCH (METER CONTROL SWITCH) SIGNAL CIRCUIT

MWI-55

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

STEERING SWITCH (METER CONTROL SWITCH) SIGNAL CIRCUIT

Diagnosis Procedure

INFOID:0000000009758278

Regarding Wiring Diagram information, refer to 

MWI-28, "Wiring Diagram"

.

1.

CHECK COMBINATION METER INPUT SIGNAL

1. Turn ignition switch ON.

2. Measure voltage between the following terminals of the combination meter.

Is the inspection result normal?

YES

>> Inspection End.

NO

>> GO TO 2.

2.

CHECK STEERING SWITCH SIGNAL CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect combination meter connector M24 and combination switch connector M80.

3. Check continuity between combination meter harness connector and steering switch harness connector.

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

Is the inspection result normal? 

YES

>> Inspection End.

NO

>> Repair or replace harness or connector.

Component Inspection

INFOID:0000000009758279

1.

CHECK STEERING SWITCH 

Check continuity between spiral cable terminals.

Is the inspection result normal?

YES

>> Inspection End.

NO

>> Replace steering switch. Refer to 

ST-10, "Removal and Installation"

.

Terminals

Condition

Voltage

(Approx.)

Combination meter

(

−)

Connector

(+)

Ground

M24

12

When meter control switch is pressed

0 V

Other than the above

5 V

Combination meter

Combination switch

Continuity

Connector

Terminal

Connector

Terminal

M24

12

M80

32

Yes

Combination meter

Ground

Continuity

Connector

Terminal

M24

12

No

Terminals

Condition

Continuity

Steering switch

(with audio steering switches)

17

16

When steering switch is pressed

Yes

Other than the above

No

Steering switch

(without audio steering switches)

13

16

When steering switch is pressed

Yes

Other than the above

No

MWI-56

< DTC/CIRCUIT DIAGNOSIS >

ILLUMINATION CONTROL SWITCH SIGNAL CIRCUIT

ILLUMINATION CONTROL SWITCH SIGNAL CIRCUIT

Diagnosis Procedure

INFOID:0000000009758280

Regarding Wiring Diagram information, refer to 

MWI-28, "Wiring Diagram"

.

1.

CHECK COMBINATION METER INPUT SIGNAL

1. Turn ignition switch ON.

2. Check voltage between the following terminals of the illumination control switch.

Is the inspection result normal?

YES

>> Inspection End.

NO

>> GO TO 2.

2.

CHECK ILLUMINATION CONTROL SWITCH SIGNAL CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect combination meter connector M24 and illumination control switch connector M66.

3. Check continuity between combination meter harness connector and illumination control switch harness

connector.

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

Is the inspection result normal? 

YES

>> Check illumination control switch. Refer to 

MWI-56, "Component Inspection"

.

NO

>> Repair or replace harness or connector.

Component Inspection

INFOID:0000000009758281

1.

CHECK ILLUMINATION CONTROL SWITCH

1. Turn ignition switch OFF.

2. Disconnect illumination control switch connector. 

3. Check illumination control switch.

Illumination control switch

Ground

Condition

Voltage

(Approx.)

Connector

Terminals

M66

1

When illumination control switch (+) is pressed

0 V

Other than the above

5 V

2

When illumination control switch (

−) is pressed

0 V

Other than the above

5 V

Combination meter

Illumination control switch

Continuity

Connector

Terminal

Connector

Terminal

M24

33

M66

1

Yes

34

2

Combination meter

Ground

Continuity

Connector

Terminal

M24

33

No

34

MWI

ILLUMINATION CONTROL SWITCH SIGNAL CIRCUIT

MWI-57

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

Is the inspection result normal?

YES

>> Inspection End.

NO

>> Replace illumination control switch. Refer to 

MWI-80, "Removal and Installation"

.

Terminals

Condition

Continuity

Illumination control switch

1

4

When illumination control switch (+) is pressed

Yes

Other than the above

No

2

When illumination control switch (

−) is pressed

Yes

Other than the above

No