DTC B1500: Fuel Sender Open Detected: Procedure

1. Use the Data List to check if the fuel receiver gauge is operating properly. Refer to DATA LIST / ACTIVE TEST .
   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: Liter

   OK

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

   RESULT
   
   

   Result	Proceed to
   NG	A
   OK	B

B → See step   7 

A: Go to next step 

1. Disconnect the F14 meter connector.
2. Disconnect the Q5 gauge connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   F14-40 (L) - Q5-2 (FS)	Always	Below 1 Ω
   F14-19 (E3) - Q5-3 (FE)
   F14-20 (E1) - Body ground
   F14-40 (L) or Q5-2 (FS) - Body ground	Always	10 kΩ or higher

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. Remove the fuel suction with pump and gauge tube assembly. Refer to REMOVAL .
   Fig 1: Identifying Fuel Pump Assembly And 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	Always	Below 1 Ω
   A-3 (FE) - B-3

   TEXT IN ILLUSTRATION
   
   

   *a	Upper Side
   *b	Lower Side (to Fuel Sender Gauge Assembly)
   *c	Connector A
   *d	Connector B

NG → See step   6 

OK: Go to next step 

1. Remove the fuel sender gauge. Refer to REMOVAL .
   Fig 2: 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
   2 - 3	Float level F (upper)	12 to 18 Ω
   	Float level E (lower)	405 to 415 Ω

   TEXT IN ILLUSTRATION
   
   

   *a	Front view of wire harness connector (to Fuel Sender Gauge Assembly)
   *b	Float level F (upper)
   *c	Float level E (lower)

NG → See step   8 

OK → See step   5