P0181
P0181 FTT SENSORDescription
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.
CAUTION: Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in damage to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.
DTC Logic
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
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Step 4:
Diagnosis Procedure
Step 1-5:
Step 5 (Continued)-8:
Component Inspection
Step 1:
