P0181

P0181 FTT SENSOR




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.

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

Step 1-4:

Step 4 (Continued):

DTC Confirmation Procedure

Step 1-5:

Step 5 (Continued)-7:

Diagnostic Procedure

Step 1:

Component Inspection