P1464

Component Description
The fuel level sensor is mounted in the fuel level sensor unit. The sensor detects a fuel level in the fuel tank and transmits a signal to the ECM.
It consists of two parts, one is mechanical float and the other side is variable resistor. Fuel level sensor output voltage changes depending on the movement of the fuel mechanical float.




ECM Terminals and Reference Value
Specification data are reference values and are measured between each terminal and 48 (ECM ground).

On Board Diagnostic Logic
ECM receives two signals from the fuel level sensor.
One is fuel level sensor power supply circuit, and the other is fuel level sensor ground circuit.
This diagnosis indicates the latter to detect open circuit malfunction. Malfunction is detected when a high voltage from the sensor is sent to ECM.

Possible Cause
- Fuel level sensor circuit
(The fuel level sensor circuit is open or shorted.)

DTC CONFIRMATION PROCEDURE

NOTE: If "DTC Confirmation Procedure" has been previously conducted, always turn ignition switch "OFF" and wait at least 5 seconds before conducting the next test.




With CONSULT-II
1. Turn ignition switch "ON".
2. Select "DATA MONITOR" mode with CONSULT-II.
3. Wait at least 5 seconds.
4. It 1st trip DTC is detected, go to "Diagnostic Procedure".

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

EC-FLS3-01:

EC-FLS3-01 - Connector Views:

WIRING DIAGRAM

M1,M2,M3,M4,M5,B1,E71,E72,E73 Connector Views:

Step 1:

Step 2:

Step 3:

Step 4:

DIAGNOSTIC PROCEDURE