Toyota Tacoma manuals

Toyota Tacoma 2015-2018 Service Manual: Fuel Sender Open Detected (B1500)

DESCRIPTION

This DTC is output when the combination meter assembly detects a fuel sender gauge assembly malfunction.

DTC No.

DTC Detection Condition

Trouble Area

B1500

When either of the following conditions is detected:

  • IG voltage is 9.5 V or more
  • Fuel sender gauge operation malfunction
  • Harness or connector
  • Combination meter assembly
  • Fuel sender gauge assembly
  • Fuel suction with pump and gauge tube assembly

WIRING DIAGRAM

PROCEDURE

PROCEDURE

1.

READ VALUE USING TECHSTREAM (FUEL INPUT)

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON.

(c) Turn the Techstream on.

(d) Enter the following menus: Body Electrical / Combination Meter / Data List.

(e) According to the display on the Techstream, read the Data List.

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

Result

Result

Proceed to

Fuel level data can be displayed on the Techstream and DTC B1500 is output

A

Fuel level data cannot be displayed on the Techstream

B

A

REPLACE COMBINATION METER ASSEMBLY

B

2.

INSPECT FUEL SENDER GAUGE ASSEMBLY

(a) Disconnect the combination meter assembly connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

C9-21 (L) - C9-23 (E3)

Always

13.5 to 414.5 Ω

Text in Illustration

*a

Front view of wire harness connector

(to Combination Meter Assembly)

OK

REPLACE COMBINATION METER ASSEMBLY

NG

3.

CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - FUEL SUCTION WITH PUMP AND GAUGE TUBE ASSEMBLY)

(a) Disconnect the C9 combination meter assembly connector.

(b) Disconnect the F19 (for 2TR-FE) or F44 (2GR-FKS) fuel suction with pump and gauge tube assembly connector.

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

Standard Resistance (for 2TR-FE):

Tester Connection

Condition

Specified Condition

C9-21 (L) - F19-2

Always

Below 1 Ω

C9-21 (L) or F19-2 - Body ground

Always

10 kΩ or higher

C9-23 (E3) - F19-3

Always

Below 1 Ω

C9-23 (E3) or F19-3 - Body ground

Always

10 kΩ or higher

Standard Resistance (for 2GR-FKS):

Tester Connection

Condition

Specified Condition

C9-21 (L) - F44-2

Always

Below 1 Ω

C9-21 (L) or F44-2 - Body ground

Always

10 kΩ or higher

C9-23 (E3) - F44-3

Always

Below 1 Ω

C9-23 (E3) or F44-3 - Body ground

Always

10 kΩ or higher

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

4.

INSPECT FUEL SENDER GAUGE ASSEMBLY

(a) Remove the fuel sender gauge assembly.

  • for 2TR-FE: (See page ) for 2GR-FKS: (See page  ) )
  • for 2GR-FKS: (See page )

(b) Inspect the fuel sender gauge assembly.

Text in Illustration

*a

Component without harness connected

(Fuel Sender Gauge Assembly)

-

-

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

Standard Resistance:

for: 2TR-FE

Tester Connection

Float Level

Float Position (mm (in.))

Specified Condition

1 - 2

F

181.9 to 193.9 (7.161 to 7.633)

3.0 to 5.0 Ω

1/2

90.9 to 102.9 (3.578 to 4.051)

55.6 to 62.4 Ω

E

0 (0)

109.0 to 111.0 Ω

for: 2GR-FKS

Tester Connection

Float Level

Float Position (mm (in.))

Specified Condition

1 - 2

F

181.9 to 193.9 (7.161 to 7.633)

13.5 to 16.5 Ω

1/2

90.9 to 102.9 (3.578 to 4.051)

201.0 to 224.0 Ω

E

0 (0)

405.5 to 414.5 Ω

Result

Result

Proceed to

OK

A

NG (for 2TR-FE)

B

NG (for 2GR-FKS)

C

B

REPLACE FUEL SENDER GAUGE ASSEMBLY (for 2TR-FE)

C

REPLACE FUEL SENDER GAUGE ASSEMBLY (for 2GR-FKS)

A

5.

INSPECT FUEL SUCTION PUMP AND GAUGE TUBE ASSEMBLY

(a) Remove the fuel suction pump and gauge tube assembly.

  • for 2TR-FE: (See page ) for 2GR-FKS: (See page )
  • for 2GR-FKS: (See page ) )

(b) 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

Text in Illustration

*a

Component without harness connected

(Fuel Suction with Pump and Gauge Tube Assembly)

Result

Result

Proceed to

OK

A

NG (for 2TR-FE)

B

NG (for 2GR-FKS)

C

A

REPLACE COMBINATION METER ASSEMBLY

B

REPLACE FUEL SUCTION WITH PUMP AND GAUGE TUBE ASSEMBLY (for 2TR-FE)

C

REPLACE FUEL SUCTION W/PUMP & GAUGE TUBE ASSEMBLY (for 2GR-FKS)

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