P0462

DTC P0462, P0463 FUEL LEVEL SENSOR CIRCUIT





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 "unified meter and A/C amp.". The "unified meter and A/C amp." sends the fuel level sensor signal to the ECM via the CAN communication line.
It consists of two parts, one is mechanical float and the other is variable resistor. Fuel level sensor output voltage changes depending on the movement of the fuel mechanical float.
- Fuel level sensor unit and fuel pump (1)
- Fuel pressure regulator (2)
- Fuel tank temperature sensor (3)




On Board Diagnosis Logic

NOTE:
- If DTC P0462 or P0463 is displayed with DTC UXXXX, first perform the trouble diagnosis for DTC
UXXXX.
- If DTC P0462 or P0463 is displayed with DTC P0607, first perform the trouble diagnosis for DTC
P0607. P0607.
This diagnosis detects open or short circuit malfunction.









DTC Confirmation Procedure

NOTE:
If DTC Confirmation Procedure has been previously conducted, always perform the following procedure before conducting the next test.
1. Turn ignition switch OFF and wait at least 10 seconds.
2. Turn ignition switch ON.
3. Turn ignition switch OFF and wait at least 10 seconds.
TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is more than 11 V at ignition switch ON.
1. Turn ignition switch ON and wait at least 5 seconds.
2. Check 1st trip DTC.
3. If 1st trip DTC is detected, go to P0462.




Diagnosis Procedure
1.CHECK DTC WITH "UNIFIED METER AND A/C AMP."
.
OK or NG
OK - GO TO 2.
NG - Go to Fuel Level Sensor Signal Inspection.
2.CHECK INTERMITTENT INCIDENT
Diagnosis Procedure.
- INSPECTION END




Removal and Installation

FUEL LEVEL SENSOR
Component.