Description
The fuel tank temperature sensor is used to detect the fuel temperature inside the fuel tank. The sensor modifies a voltage signal from the ECM. The modified signal returns to the ECM as the fuel temperature input. The sensor uses a thermistor which is sensitive to the change in temperature. The electrical resistance of the thermistor decreases as temperature increases.
<Reference data>
*: These data are reference values and are measured between ECM terminals 95 (Fuel tank temperature sensor) and 104 (sensor ground).
DTC Logic
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always perform the following before conducting the next test.
2.PERFORM DTC CONFIRMATION PROCEDURE
Diagnosis Procedure
1.CHECK GROUND CONNECTION
2.CHECK FUEL TANK TEMPERATURE SENSOR POWER SUPPLY CIRCUIT
3.DETECT MALFUNCTIONING PART
Check the following.
4.CHECK FUEL TANK TEMPERATURE SENSOR GROUND CIRCUIT FOR OPEN AND SHORT
5.DETECT MALFUNCTIONING PART
Check the following.
6.CHECK FUEL TANK TEMPERATURE SENSOR
7.CHECK INTERMITTENT INCIDENT
Component Inspection
1.CHECK FUEL TANK TEMPERATURE SENSOR
Under the hood and vehicle
The maintenance items listed here should be
checked periodically (for example, each time you
check the engine oil or refuel).
Battery*: Check the fluid level in each cell. The
fluid should be at the bottom of the filler opening.
Vehicles operated in high temperatures or under
severe condit ...
Variable induction air system
System Diagram
System Description
INPUT/OUTPUT SIGNAL CHART
*: ECM determines the start signal status by the signals of engine speed and
battery voltage.
SYSTEM DESCRIPTION
In the medium speed range, the power valves are closed. Under this condition,
the pressure waves of the
...
The fuel gauge pointer does not move
Description
Fuel gauge needle will not move from a certain position.
Diagnosis Procedure
1.CHECK COMBINATION METER INPUT SIGNAL
Select "METER/M&A" on CONSULT.
Using "FUEL METER" of "DATA MONITOR", compare
the monitor value with the fuel gauge reading on
the co ...