DTC B1500: Fuel Sender Open Detected (08/2011 - ): Procedure

1. Operate the Techstream according to the display and select the Data List. Refer to DATA LIST / ACTIVE TEST .
   COMBINATION METER
   
   

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   Fuel Input	Fuel sender gauge (main) input signal/Min.: 0, Max.: 127.5	Fuel sender input value	Unit: L

   OK

   Fuel amount value displayed on the Techstream is almost the same as needle indication.

NG → See step   2 

OK → See step   5 

1. Disconnect the E77 combination meter assembly connector.
2. Disconnect the N1 fuel suction with pump and gauge tube assembly connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   E77-15 (L) - N1-2 (FS)	Always	Below 1 Ω
   E77-14 (E) - N1-3 (FE)	Always	Below 1 Ω
   E77-26 (ET) - Body ground	Always	Below 1 Ω
   E77-15 (L) or N1-2 (FS) - Body ground	Always	10 kΩ or higher

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. Remove the fuel sender gauge assembly. Refer to REMOVAL .
   Fig 1: Identifying Fuel Sender Gauge Assembly Connector Terminals

   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 (FS) - B-2 (FS)	Always	Below 1 Ω
   A-3 (FE) - B-1 (FE)	Always	Below 1 Ω

   TEXT IN ILLUSTRATION
   
   

   *1	Component without harness connected (Fuel Suction with Pump and Gauge Tube Assembly)
   *2	Connector A
   *3	Connector B

NG → See step   6 

OK: Go to next step 

1. Remove the fuel sender gauge assembly. Refer to REMOVAL .
   Fig 2: Measuring Resistance Of Fuel Sender Gauge Assembly

   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
   2 (FS) - 1 (FE)	Float level is F (upper)	13.5 to 16.5 Ω
   	Float level is E (lower)	405.5 to 414.5 Ω

   TEXT IN ILLUSTRATION
   
   

   *1	Component without harness connected (Fuel Sender Gauge Assembly)

NG → See step   7 

OK → See step   8