Fuel Gauge Malfunction [09/2014 - 10/2015]: Procedure

1. Use the Active Test to check the operation of the fuel receiver gauge (Refer to DATA LIST / ACTIVE TEST [09/2014 - 10/2015] ).
   COMBINATION METER
   
   

   Tester Display	Test Part	Control Range	Diagnostic Note
   Fuel Meter Operation	Fuel receiver gauge	EMPTY, 1/2, FULL	Confirm that the vehicle is stopped with the engine idling.

   OK

   Fuel receiver gauge indication is normal.

Result: 

NG 

REPLACE COMBINATION METER ASSEMBLY 

(Refer to REMOVAL [09/2014 - ] )

Result: 

OK 

See step  2

1. Use the Data List to check if the fuel receiver gauge is operating properly (Refer to DATA LIST / ACTIVE TEST [09/2014 - 10/2015] ).
   COMBINATION METER
   
   

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   Fuel Input	Fuel input signal/Min.: 0, Max.: 127.5	Current fuel level displayed	Unit: Liters.

   OK

   Fuel level signal displayed on the Techstream is almost the same as fuel receiver gauge indication.

Result: 

NG 

REPLACE COMBINATION METER ASSEMBLY 

(Refer to REMOVAL [09/2014 - ] )

Result: 

OK 

See step  3

1. Disconnect the N40 combination meter assembly connector.
2. Disconnect the U11 fuel suction plate sub-assembly connector.
3. Disconnect the T16 fuel tank vent tube assembly connector.
4. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   N40-26 (FR) - U11-2	Always	Below 1 Ω
   N40-27 (FE) - T16-3
   U11-3 - T16-2
   N40-30 (ES) - Body ground
   N40-26 (FR) - Body ground	Always	10 kΩ or higher
   N40-27 (FE) - Body ground
   U11-3 - Body ground

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  4

1. Remove the fuel sender gauge assembly (Refer to REMOVAL [09/2014 - 10/2015] ).
2. Inspect the fuel sender gauge assembly (Refer to INSPECTION [09/2014 - 10/2015] ).

Result: 

NG 

REPLACE FUEL SENDER GAUGE ASSEMBLY 

(Refer to REMOVAL [09/2014 - 10/2015] )

Result: 

OK 

See step  5

1. Remove the fuel suction plate sub-assembly (Refer to REMOVAL [09/2014 - 10/2015] ).

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

2. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   A-2 - B-2	Always	Below 1 Ω
   A-3 - B-1

Result: 

NG 

REPLACE FUEL SUCTION PLATE SUB-ASSEMBLY 

(Refer to REMOVAL [09/2014 - 10/2015] )

Result: 

OK 

See step  6

1. Remove the No. 2 fuel sender gauge assembly (Refer to REMOVAL [09/2014 - 10/2015] ).
2. Inspect the No. 2 fuel sender gauge assembly (Refer to INSPECTION [09/2014 - 10/2015] ).

Result: 

NG 

REPLACE NO. 2 FUEL SENDER GAUGE ASSEMBLY 

(Refer to REMOVAL [09/2014 - 10/2015] )

Result: 

OK 

See step  7

1. Remove the fuel tank vent tube assembly (Refer to REMOVAL [09/2014 - 10/2015] ).

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

2. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   A-2 - B-2	Always	Below 1 Ω
   A-3 - B-1

Result: 

OK 

REPLACE COMBINATION METER ASSEMBLY 

(Refer to REMOVAL [09/2014 - ] )

Result: 

NG 

REPLACE FUEL TANK VENT TUBE ASSEMBLY 

(Refer to REMOVAL [09/2014 - 10/2015] )