Nissan Sentra Service Manual: The fuel gauge indicator does not operate
Description
Fuel gauge will not indicate from a certain position.
Diagnosis procedure
1.CHECK FUEL LEVEL SENSOR SIGNAL CIRCUIT
Check the fuel level sensor signal circuit. Refer to MWI-58, "Diagnosis Procedure".
Is the inspection result normal? YES >> GO TO 2.
NO >> Repair or replace harness or connector.
2.Component inspection
Perform components inspection for the fuel level sensor unit and combination meter. Refer to mwi-59, "component inspection".
Is the inspection result normal? Yes >> go to 3.
No >> repair or replace malfunctioning parts.
3.Check float interference
Check that the float arm interferes with or binds to other components in the fuel tank.
Is the inspection result normal? Yes >> replace fuel level sensor unit. Refer to fl-6, "removal and installation".
No >> repair or replace malfunctioning parts.
The steering switch (meter control switch) is inoperative
Description
If any of the following malfunctions is found for the steering switch (meter
control switch) operation.
All switches are inoperative
The specified switch cannot be operated
Di ...
Other materials:
A-bag branch line circuit
Diagnosis procedure
Warning:
Always observe the following items for preventing accidental
activation.
Before servicing, turn ignition switch off, disconnect battery
negative terminal, and wait 3 minutes
or more. (To discharge backup capacitor.)
Never use unspecified tester or other me ...
P0171 Fuel injection system function
DTC Logic
DTC DETECTION LOGIC
With the Air/Fuel Mixture Ratio Self-Learning Control, the actual mixture
ratio can be brought closely to the
theoretical mixture ratio based on the mixture ratio feedback signal from the
A/F sensors 1. The ECM calculates
the necessary compensation to correct th ...
B terminal circuit
Description
“B” terminal circuit supplies power to charge the battery and to operate the
vehicles electrical system.
Diagnosis procedure
Regarding wiring diagram information. Refer to chg-9, "wiring diagram".
1.Check “b” terminal connection
Turn ignition switc ...
