Nissan Leaf. Manual - part 972

MWI

WASHER FLUID LEVEL SWITCH CIRCUIT

MWI-91

< DTC/CIRCUIT DIAGNOSIS >

C

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WASHER FLUID LEVEL SWITCH CIRCUIT

Diagnosis Procedure

INFOID:0000000010122427

Regarding Wiring Diagram information, refer to 

MWI-68, "Wiring Diagram"

.

1.

CHECK WASHER FLUID LEVEL SWITCH SIGNAL CIRCUIT

1. Power switch OFF.

2. Disconnect combination meter connector and washer fluid level switch connector.

3. Check continuity between combination meter harness connector and washer fluid level switch harness

connector.

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

Is the inspection result normal? 

YES

>> GO TO 2.

NO

>> Repair or replace harness or connector.

2.

CHECK WASHER FLUID LEVEL SWITCH GROUND CIRCUIT

Check continuity between washer fluid level switch connector and ground.

Is the inspection result normal?

YES

>> Inspection End.

NO

>> Repair or replace harness or connector.

Component Inspection

INFOID:0000000010122428

1.

CHECK WASHER FLUID LEVEL SWITCH

1. Power switch OFF.

2. Disconnect washer fluid level switch connector. 

3. Check washer fluid level switch.

Is the inspection result normal?

Terminals

Continuity

Combination meter

Washer fluid level switch

Connector

Terminal

Connector

Terminal

M34

8

E29

1

Yes

Terminals

Continuity

Combination meter

Ground

Connector

Terminal

M34

8

No

Terminals

Continuity

Washer fluid level switch

Ground

Connector

Terminal

E29

2

Yes

Terminals

Condition

Continuity

Washer fluid level switch

1

2

Washer fluid level switch ON

Yes

Washer fluid level switch OFF

No

MWI-92

< DTC/CIRCUIT DIAGNOSIS >

WASHER FLUID LEVEL SWITCH CIRCUIT

YES

>> Inspection End.

NO

>> Replace washer fluid level switch. Refer to 

WW-45, "Removal and Installation"

.

MWI

PARKING BRAKE SWITCH SIGNAL CIRCUIT

MWI-93

< DTC/CIRCUIT DIAGNOSIS >

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PARKING BRAKE SWITCH SIGNAL CIRCUIT

Diagnosis Procedure

INFOID:0000000010122429

Regarding Wiring Diagram information, refer to 

MWI-68, "Wiring Diagram"

.

1.

CHECK COMBINATION METER INPUT SIGNAL

1. Power switch ON.

2. Check 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. Power 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.

Is the inspection result normal?

YES

>> Inspection End. 

NO

>> Repair or replace harness or connector.

Component Inspection

INFOID:0000000010122430

1.

CHECK PARKING BRAKE SWITCH

Check continuity between parking brake switch terminal 1 and switch case ground.

Is the inspection result normal? 

YES

>> Inspection End.

(+)

(

−)

Condition

Voltage

(Approx.)

Combination meter

Ground

Connector

Terminal

M34

24

Power switch ON

When parking brake is applied

0 V

When parking brake is released

Battery voltage

Terminals

Continuity

Combination meter

Parking brake switch

Connector

Terminal

Connector

Terminal

M34

24

E4

1

Yes

Terminals

Continuity

Combination meter

Ground

Connector

Terminal

M34

24

No

Component

Terminal

Condition

Continuity

Parking brake switch

1

Parking brake applied

Yes

Parking brake released

No

MWI-94

< DTC/CIRCUIT DIAGNOSIS >

PARKING BRAKE SWITCH SIGNAL CIRCUIT

NO

>> Replace parking brake switch. Refer to 

PB-8, "Exploded View"

.