DTC B1500: Fuel Sender Open Detected: Procedure

1. Disconnect the E55 connector.
   Fig 1: Identifying Combination Meter Connector Terminal

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   E55-10 (E) - E55-25 (L)	Always	13.5 to 414.5 Ω

NG → See step   2 

OK → See step   5 

1. Check the harness and connector (for 2WD).
   Fig 2: Identifying Combination Meter Connector Terminal

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   1. Disconnect the L13 connector.
   2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection	Condition	Specified Condition
      E55-25 (L) - L13-2 (FS)	Always	Below 1 Ω
      E55-25 (L) - Body ground	Always	10 kΩ or higher
      E55-10 (E) - L13-3 (FE)	Always	Below 1 Ω
      E55-10 (E) - Body ground	Always	10 kΩ or higher

2. Check the harness and connector (for 4WD).
   Fig 3: Identifying Fuel Sender Gauge Assembly Connector Terminal

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   1. Disconnect the L12 and L13 connectors.
   2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection	Condition	Specified Condition
      E55-25 (L) - L13-2 (FS)	Always	Below 1 Ω
      E55-25 (L) - Body ground	Always	10 kΩ or higher
      L13-3 (FE) - L12-1 (FS)	Always	Below 1 Ω
      L13-3 (FE) - Body ground	Always	10 kΩ or higher
      E55-10 (E) - L12-2 (E)	Always	Below 1 Ω
      E55-10 (E) - Body ground	Always	10 kΩ or higher

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. Remove the fuel suction pump and gauge.
   Fig 4: Identifying Fuel Suction Pump And Gauge Connector Terminal

   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) - 2 (S)	Always	Below 1 Ω
   3 (FE) - 1 (FE)	Always	Below 1 Ω

NG → REPLACE FUEL SUCTION PUMP AND GAUGE 

OK: Go to next step 

1. Inspect the fuel sender gauge assembly (for 2WD).
   Fig 5: Identifying Fuel Sender Gauge Assembly Connector Terminal

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   1. Remove the fuel sender gauge assembly.
   2. Check that the float moves smoothly between E and F.
   3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection	Condition	Specified Condition
      1 (FE) - 2 (S)	Float level is F (upper)	13.5 to 16.5 Ω
      1 (FE) - 2 (S)	Float level is between F (upper) and E (lower)	13.5 to 414.5 Ω (Gradually changes)
      1 (FE) - 2 (S)	Float level is E (lower)	405.5 to 414.5 Ω

2. Inspect the fuel sender gauge assembly (for 4WD).
   Fig 6: Identifying Fuel Sender Gauge Assembly (Main And Sub)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   1. Remove the fuel sender gauge assembly.
   2. Check that the float moves smoothly between E and F.
   3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance (Main)

      Tester Connection	Condition	Specified Condition
      1 (FE) - 2 (S)	Float level is F (upper)	6.5 to 8.5 Ω
      1 (FE) - 2 (S)	Float level is between F (upper) and E (lower)	6.5 to 245.7 Ω (Gradually changes)
      1 (FE) - 2 (S)	Float level is E (lower)	240.7 to 245.7 Ω

      Standard Resistance (Sub)

      Tester Connection	Condition	Specified Condition
      1 (FS) - 2 (E)	Float level is F (upper)	6.5 to 8.5 Ω
      1 (FS) - 2 (E)	Float level is between F (upper) and E (lower)	6.5 to 168.8 Ω (Gradually changes)
      1 (FS) - 2 (E)	Float level is E (lower)	164.8 to 168.8 Ω

      Result

      Result	Proceed to
      OK	A
      NG (for 2AZ-FE)	B
      NG (for 2ZR-FE)	C

B → See step   6 

C → See step   7 

A → See step   5