Nissan Pathfinder. Manual — part 873
MWI-64
< DTC/CIRCUIT DIAGNOSIS >
TRIP RESET SWITCH SIGNAL CIRCUIT
Is the inspection result normal?
YES
>> Inspection End.
NO
>> Replace trip reset switch. Refer to
MWI-83, "Removal and Installation"
3
4
When trip reset switch is pressed
Yes
Other than the above
No
MWI
FUEL LEVEL SENSOR SIGNAL CIRCUIT
MWI-65
< DTC/CIRCUIT DIAGNOSIS >
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FUEL LEVEL SENSOR SIGNAL CIRCUIT
Description
INFOID:0000000009174269
The fuel level sensor unit and fuel pump detects the approximate fuel level in the fuel tank and transmits the
fuel level signal to the combination meter.
Component Function Check
INFOID:0000000009174270
1.
COMBINATION METER INPUT SIGNAL
1. Select METER/M&A on CONSULT.
2. Using FUEL METER of DATA MONITOR, compare the value of DATA MONITOR with fuel gauge pointer
of combination meter.
Does the data monitor value approximately match the fuel gauge indication?
YES
>> Inspection End.
NO
>> Replace combination meter. Refer to
MWI-82, "Removal and Installation"
Diagnosis Procedure
INFOID:0000000009174271
Regarding Wiring Diagram information, refer to
.
1.
CHECK HARNESS CONNECTOR
1. Turn ignition switch OFF.
2. Check combination meter and fuel level sensor unit terminals (meter-side and harness-side) for poor con-
nection.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair or replace terminals or connectors.
2.
CHECK FUEL LEVEL SENSOR UNIT CIRCUIT
1. Disconnect combination meter harness connector M24 and fuel level sensor unit harness connector B72.
2. Check continuity between combination meter harness connector M24 and fuel level sensor unit and fuel
pump harness connector B72.
3. Check continuity between fuel level sensor unit and fuel pump harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
Fuel gauge pointer
Fuel tank volume [L]
(Approx.)
Full
70.6
3/4
54.1
1/2
36.4
1/4
20
Empty
0
Fuel level sensor unit and fuel pump
Combination meter
Continuity
Connector
Terminal
Connector
Terminal
B72
5
M24
27
Yes
Connector
Terminal
Ground
Continuity
B72
5
No
MWI-66
< DTC/CIRCUIT DIAGNOSIS >
FUEL LEVEL SENSOR SIGNAL CIRCUIT
NO
>> Repair or replace harness or connectors.
3.
CHECK FUEL LEVEL SENSOR UNIT GROUND CIRCUIT
1. Check continuity between combination meter harness connector M24 and fuel level sensor unit and fuel
pump harness connector B72.
2. Check continuity between fuel level sensor unit and fuel pump harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair or replace harness or connectors.
4.
CHECK INSTALLATION CONDITION
Check fuel level sensor unit installation, and check whether the float arm interferes or binds with any of the
internal components in the fuel tank.
Is the inspection result normal?
YES
>> Inspection End.
NO
>> Install the fuel level sensor unit properly. Refer to
FL-6, "Removal and Installation"
Component Inspection
INFOID:0000000009174272
1.
REMOVE FUEL LEVEL SENSOR UNIT
Remove the fuel level sensor unit. Refer to
FL-6, "Removal and Installation"
.
>> GO TO 2.
2.
CHECK FUEL LEVEL SENSOR UNIT AND FUEL PUMP
Check the resistance between terminals 2 and 5.
*1 and *2: When float arm is in contact with stopper.
Is inspection result OK?
YES
>> Inspection End.
NO
>> Replace fuel level sensor unit and fuel pump. Refer to
FL-6, "Removal and Installation"
.
Connector
Terminal
Connector
Terminal
Continuity
B72
2
M24
26
Yes
Connector
Terminal
Ground
Continuity
B72
2
No
Terminal
Float position
mm (in)
Resistance value
(Approx.)
2
5
*1
Empty
15.7 (0.6)
283
Ω
*2
Full
133 (5.2)
51
Ω
AWNIA2549ZZ
MWI
WASHER FLUID LEVEL SWITCH CIRCUIT
MWI-67
< DTC/CIRCUIT DIAGNOSIS >
C
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WASHER FLUID LEVEL SWITCH CIRCUIT
Description
INFOID:0000000009174273
Transmits the washer fluid level switch signal to the combination meter.
Diagnosis Procedure
INFOID:0000000009174274
Regarding Wiring Diagram information, refer to
.
1.
CHECK WASHER FLUID LEVEL SWITCH SIGNAL CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect combination meter harness connector M24 and washer fluid level switch harness connector
E208.
3. Check continuity between combination meter harness connector M24 and washer fluid level switch har-
ness connector E208.
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 connectors.
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 connectors.
Component Inspection
INFOID:0000000009174275
1.
CHECK WASHER FLUID LEVEL SWITCH
1. Turn ignition switch OFF.
2. Disconnect washer fluid level switch connector.
3. Check washer fluid level switch.
Is the inspection result normal?
Combination meter
Washer fluid level switch
Continuity
Connector
Terminal
Connector
Terminal
M24
49
E208
1
Yes
Combination meter
Ground
Continuity
Connector
Terminal
M24
49
No
Washer fluid level switch
Ground
Continuity
Connector
Terminal
E208
2
Yes
Washer fluid level switch
Condition
Continuity
Terminals
1
2
Washer fluid level switch ON
Yes
Washer fluid level switch OFF
No
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