P0180

Reference Data:

COMPONENT 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.

ON BOARD DIAGNOSIS LOGIC:

DIAGNOSTIC TROUBLE CODE CONFIRMATION PROCEDURE

NOTE: If "DIAGNOSTIC TROUBLE CODE CONFIRMATION PROCEDURE" has been previously conducted, always turn ignition switch "OFF" and wait at least 5 seconds before conducting the next test.

With Consult
1. Turn ignition switch "ON".




2. Select "DATA MONITOR" mode with CONSULT-II.
3. Wait at least 10 seconds.
If the result is NG, go to "DIAGNOSTIC PROCEDURE".
If the result is OK, go to following step.

NOTE:
If "COOLAN TEMP/S" is already less than 90 °C (194 °F) before step 4), the result will be OK.
If "COOLAN TEMP/S" is above 90 °C (194 °F), go to the following step.

4. Cool engine down until "COOLAN TEMP/S" is less than 90 °C (194 °F).
5.Wait at least 10 seconds.
6. If 1st trip DTC is detected, go to "DIAGNOSTIC PROCEDURE".

OR

With Generic Scan Tool
Follow the procedure "With CONSULT-II" above.

EC-TFTS-01:

EC-TFTS-01 Connector View:

WIRING DIAGRAM

M12,M4,M6,E66,B3,N1,M11,M48,D1,D21 Connector Views:

M3,B4,M50,B101,M49,F63,E70,E81 Connector Views:

DIAGNOSTIC PROCEDURE







COMPONENT INSPECTION
Check resistance by heating with hot water or heat gun as shown in the figure.
If NG, replace fuel tank temperature sensor.