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

Toyota Tacoma (2015-2018) Service Manual / Meter / Gauge / Display / Meter / Gauge System / 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

1.	READ VALUE USING TECHSTREAM (FUEL INPUT)

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to 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

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

REPLACE COMBINATION METER ASSEMBLY

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)

REPLACE COMBINATION METER ASSEMBLY

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.

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

REPAIR OR REPLACE HARNESS OR CONNECTOR

4.	INSPECT FUEL SENDER GAUGE ASSEMBLY

(a) Remove the fuel sender gauge assembly.

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

(b) Inspect the fuel sender gauge assembly.

Text in Illustration

Component without harness connected

(Fuel Sender Gauge Assembly)

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

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

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

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 )

(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	Always	Below 1 Ω

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

REPLACE COMBINATION METER ASSEMBLY

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

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

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