Nissan March K13. Instruction — part 43

BRAKE FLUID LEVEL SWITCH

BRC-3

< DTC/CIRCUIT DIAGNOSIS >

[WITHOUT ABS]

C

D

E

G

H

I

J

K

L

M

A

B

BRC

N

O

P

DTC/CIRCUIT DIAGNOSIS

BRAKE FLUID LEVEL SWITCH

Component Function Check

INFOID:0000000006037678

1.

CHECK BRAKE FLUID LEVEL SWITCH OPERATION

When the brake fluid is full or empty.

Then check that the brake warning lamp in the combination meter turns

ON/OFF correctly.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Proceed to diagnosis procedure. Refer to

BRC-3, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000006034868

1.

CHECK THE BRAKE FLUID LEVEL

Check the brake fluid level. Refer to

BR-9, "Inspection"

.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Refill the brake fluid. Refer to

BR-9, "Refilling"

.

2.

CHECK BRAKE FLUID LEVEL SWITCH CIRCUIT

1.

Check continuity between brake fluid level switch harness connector and combination meter harness con-
nector.

2.

Check continuity between brake fluid level switch harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace error-detected parts.

3.

CHECK BRAKE FLUID LEVEL SWITCH GROUND CIRCUIT

Check continuity between brake fluid level switch harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace error-detected parts.

4.

CHECK BRAKE FLUID LEVEL SWITCH

Condition

Brake warning lamp illumination status

When the brake fluid is empty in the reservoir tank.

ON

When the brake fluid is full in the reservoir tank.

OFF

Brake fluid level switch

Combination meter

Continuity

Connector

Terminal

Connector

Terminal

E37

1

M34

36

Existed

Brake fluid level switch

—

Continuity

Connector

Terminal

E37

1

Ground

Not existed

Brake fluid level switch

—

Continuity

Connector

Terminal

E37

2

Ground

Existed

BRC-4

< DTC/CIRCUIT DIAGNOSIS >

[WITHOUT ABS]

BRAKE FLUID LEVEL SWITCH

Check brake fluid level switch. Refer to

BRC-4, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Replace reservoir tank. Refer to

BR-26, "Disassembly and Assembly"

5.

CHECK TERMINALS AND HARNESS CONNECTORS

1.

Check brake fluid level switch pin terminals for damage or loose connection with harness connector.

2.

Check combination meter pin terminals for damage or loose connection with harness connector.

Is the inspection result normal?

YES

>> Check the combination meter. Refer to

MWI-22, "Reference Value"

.

NO

>> Repair or replace error-detected parts.

Component Inspection

INFOID:0000000006034869

1.

CHECK BRAKE FLUID LEVEL SWITCH

1.

Turn the ignition switch OFF.

2.

Disconnect brake fluid level switch harness connector.

3.

Check continuity between brake fluid level switch harness connector.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace reservoir tank. Refer to

BR-26, "Disassembly and Assembly"

Brake fluid level switch

Condition

Continuity

Terminal

1

−

2

When brake fluid is full in the reservoir tank.

Not existed

When brake fluid is empty in the reservoir tank.

Existed

PARKING BRAKE SWITCH

BRC-5

< DTC/CIRCUIT DIAGNOSIS >

[WITHOUT ABS]

C

D

E

G

H

I

J

K

L

M

A

B

BRC

N

O

P

PARKING BRAKE SWITCH

Component Function Check

INFOID:0000000006037679

1.

CHECK PARKING BRAKE SWITCH OPERATION

Operate the parking brake lever. Then check that the brake warning lamp in the combination meter turns ON/
OFF correctly.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Proceed to diagnosis procedure. Refer to

BRC-5, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000006034870

1.

CHECK PARKING BRAKE SWITCH CIRCUIT

1.

Turn the ignition switch OFF.

2.

Disconnect parking brake switch harness connector.

3.

Disconnect combination meter harness connector.

4.

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

5.

Check continuity between parking brake switch harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace error-detected parts.

2.

CHECK PARKING BRAKE SWITCH

Check the parking brake switch. Refer to

BRC-5, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Replace parking brake switch. Refer to

PB-3, "Removal and Installation"

.

3.

CHECK TERMINALS AND HARNESS CONNECTORS

1.

Check parking brake switch pin terminals for damage or loose connection with harness connector.

2.

Check combination meter pin terminals for damage or loose connection with harness connector.

Is the inspection result normal?

YES

>> Check combination meter. Refer to

MWI-22, "Reference Value"

.

NO

>> Repair or replace error-detected parts.

Component Inspection

INFOID:0000000006034871

1.

CHECK PARKING BRAKE SWITCH

1.

Turn the ignition switch OFF.

Condition

Brake warning lamp illumination status

When the parking brake switch is operation

ON

When the parking brake switch is not operation.

OFF

Parking brake switch

Combination meter

Continuity

Connector

Terminal

Connector

Terminal

M11

1

M34

37

Existed

Parking brake switch

—

Continuity

Connector

Terminal

M97

1

Ground

Not existed

BRC-6

< DTC/CIRCUIT DIAGNOSIS >

[WITHOUT ABS]

PARKING BRAKE SWITCH

2.

Disconnect parking brake switch harness connector.

3.

Check continuity between parking brake switch harness connector.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace parking brake switch. Refer to

PB-3, "Removal and Installation"

.

Parking brake switch

—

Condition

Continuity

Terminal

When the parking brake switch is operated.

Existed

1

Ground

When the parking brake switch is not operated.

Not existed