DTC B1500: Fuel Sender Open Detected: 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   5 

OK: Go to next step 

Fig 1: Identifying E77 And N1 Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Disconnect the E77 meter connector.
2. Disconnect the N1 gauge 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)
   E77-26 (ET) - Body ground
   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. Refer to REMOVAL .
   Fig 2: Identifying Fuel Sender Gauge 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)

NG → See step   6 

OK: Go to next step 

Fig 3: Identifying Fuel Sender Gauge Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Remove the fuel sender gauge. Refer to REMOVAL .
2. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   2 (FS) - 3 (FE)	Float level is F (upper)	12 to 18 Ω
   	Float level is E (lower)	405 to 415 Ω

NG → See step   7 

OK → See step   5