DTC Troubleshooting: P0462
DTC P0462: Fuel Level Sensor (Fuel Gauge Sending Unit) Circuit Low Voltage
NOTE: Before you troubleshoot, review the general troubleshooting information.

DTC Description
Confirmed DTC
Pending DTC
P0462 Fuel Level Sensor (Fuel Gauge Sending Unit) Circuit Low Voltage
   

1.
Problem verification:

Problem verification
?1.
Press the engine start/stop button to select the ON mode.

?2.


?3.
Wait 5 seconds.

?4.
Check for Pending or Confirmed DTCs with the HDS.
DTC Description
Confirmed DTC
Pending DTC
P0462 Fuel Level Sensor (Fuel Gauge Sending Unit) Circuit Low Voltage
   

Is DTC P0462 indicated?

     
YES
     
     
     
Failure is duplicated. Go to step 2.
     
NO
     
     
     
Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at the gauge control module and the fuel gauge sending unit. If the on-board snapshot of this DTC is recorded, try to reproduce the failure under the same conditions with the on-board snapshot.?
2.
Shorted wire check (FUEL GAGE+ line):

Shorted wire check (FUEL GAGE+ line)
?1.
Press the engine start/stop button to select the OFF mode.

?2.

?3.
Disconnect the following connectors.

?4.
Check for continuity between test points 1 and 2.
Test condition
OFF mode
Fuel tank unit 4P connector: disconnected
Gauge control module connector A (32P): disconnected
Test circuit
FUEL GAGE+
Test point 1
Fuel tank unit 4P connector No. 2 (GRY)
Test point 2
Body ground


Is there continuity?

     
YES
     
     
     
Repair a short in the FUEL GAGE+ wire between the gauge control module and the fuel tank unit.?
     
NO
     
     
     
Go to step 3.
3.
Fuel gauge sending unit check:

Fuel gauge sending unit check
?1.

Is the fuel gauge sending unit OK?

     
YES
     
     
     
     
NO