DTC P0462: Fuel Level Sensor "A" Circuit Low; DTC P0463: Fuel Level Sensor "A" Circuit High [07/2020 - ]: Procedure

1. Disconnect the fuel suction tube with pump and gauge assembly connector.
2. Disconnect the combination meter assembly connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   X17-1 (FV) - P25-14 (FV)	Always	Below 1 Ω
   X17-3 (FR) - P25-12 (FR)	Always	Below 1 Ω
   X17-2 (FE) - P25-13 (FE&B)	Always	Below 1 Ω
   X17-1 (FV) or P25-14 (FV) - Body ground and other terminals	Always	10 kΩ or higher
   X17-3 (FR) or P25-12 (FR) - Body ground and other terminals	Always	10 kΩ or higher

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  2

1. Remove the fuel sender gauge assembly.

   Refer to REMOVAL [07/2020 - 05/2023] , or refer to REMOVAL [05/2023 - ]

2. Inspect the fuel sender gauge assembly.

   Refer to INSPECTION [07/2020 - ]

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPLACE FUEL SENDER GAGE ASSEMBLY. Refer to  REMOVAL [07/2020 - 05/2023]  , or refer to  REMOVAL [05/2023 - ] 

Result: 

OK 

See step  3

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Remove the fuel suction tube with pump and gauge sub-assembly.

   Refer to REMOVAL [07/2020 - 05/2023] , or refer to REMOVAL [05/2023 - ]

2. Disconnect the fuel sender gauge assembly connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   X17-1 (FV) - A-3	Always	Below 1 Ω
   X17-2 (FE) - A-2	Always	Below 1 Ω
   X17-3 (FR) - A-1	Always	Below 1 Ω
   X17-1 (FV) or A-3 - Other terminals	Always	10 kΩ or higher
   X17-2 (FE) or A-2 - Other terminals	Always	10 kΩ or higher
   X17-3 (FR) or A-1 - Other terminals	Always	10 kΩ or higher

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE COMBINATION METER ASSEMBLY. Refer to  REMOVAL [07/2020 - ] 

Result: 

NG 

REPLACE FUEL SUCTION TUBE WITH PUMP AND GAUGE ASSEMBLY. Refer to  REMOVAL [07/2020 - 05/2023]  , or refer to  REMOVAL [05/2023 - ]