Nissan Frontier D22. Manual - part 320
DTC P0462, P0463 FUEL LEVEL SENSOR
EC-383
[KA24DE]
C
D
E
F
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K
L
M
A
EC
DTC P0462, P0463 FUEL LEVEL SENSOR
PFP:25060
Component Description
UBS00D8K
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 is vari-
able resistor. Fuel level sensor output voltage changes depending on
the movement of the fuel mechanical float.
On Board Diagnostic Logic
UBS00D8L
ECM receives two signals from the fuel level sensor circuit.
One is fuel level sensor power supply circuit, and the other is fuel level sensor ground circuit.
This diagnosis indicates the former, to detect open or short circuit malfunction.
Malfunction is detected when an excessively low (P0462) or high (P0463) voltage is sent from the sensor is
sent to ECM.
DTC Confirmation Procedure
UBS00D8M
NOTE:
If “DTC Confirmation Procedure” has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is more than 11V at ignition
switch “ON”.
WITH CONSULT-II
1.
Turn ignition switch ON.
2.
Select “DATA MONITOR” mode with CONSULT-II.
3.
Wait at least 5 seconds.
4.
If 1st trip DTC is detected, go to
EC-385, "Diagnostic Procedure"
.
WITH GST
Follow the procedure “WITH CONSULT-II” above.
SEF725Z
DTC No.
Trouble diagnosis name
DTC detecting condition
Possible cause
P0462
Fuel level sensor circuit
low input
An excessively low voltage is sent from the
sensor is sent to ECM.
●
Fuel level sensor circuit
(The sensor circuit is open or shorted)
●
Fuel level sensor
P0463
Fuel level sensor circuit
high input
An excessively high voltage is sent from the
sensor is sent to ECM.
SEF195Y