Toyota CH-R Service Manual: Fuel Sender Open Detected (B1500)

DESCRIPTION

This DTC is stored when the combination meter assembly detects a fuel sender gauge assembly malfunction via a direct line.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

Memory

B1500

Fuel Sender Open Detected

When IG voltage is 9.5 V or more and the following condition is detected:

  • Average input signal of fuel sender gauge assembly is 630 Ω or more 3 times consecutively
  • Harness or connector
  • Fuel suction tube with pump and gauge assembly
  • Fuel sender gauge assembly
  • Combination meter assembly

-

WIRING DIAGRAM

CAUTION / NOTICE / HINT

NOTICE:

When replacing the combination meter assembly, always replace it with a new one. If a combination meter assembly which was installed to another vehicle is used, the information stored in it will not match the information from the vehicle and a DTC may be stored.

PROCEDURE

1.

READ VALUE USING TECHSTREAM (FUEL INPUT)

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch ON.

(c) Turn the Techstream on.

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

(e) Read the Data List according to the display on the Techstream.

Body Electrical > Combination Meter > Data List

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

Fuel Input

Fuel input

Min.: 0 L, Max.: 127.5 L

  • Fuel receiver gauge indicates

    F: 45.0 L

  • Fuel receiver gauge indicates

    3/4: 35.4 L

  • Fuel receiver gauge indicates

    1/2: 25.0 L

  • Fuel receiver gauge indicates

    1/4: 14.6 L

  • Fuel receiver gauge indicates

    E: 5.0 L

-

Body Electrical > Combination Meter > Data List

Tester Display

Fuel Input

Result

Proceed to

Fuel level data can be displayed on the Techstream

A

Fuel level data cannot be displayed on the Techstream

B

A

REPLACE COMBINATION METER ASSEMBLY

B

2.

INSPECT FUEL SENDER GAUGE ASSEMBLY (POWER SOURCE)

*a

Component with harness connected

(Combination Meter Assembly)

(a) Measure the voltage according to the value(s) in the table below.

Standard Voltage:

Tester Connection

Switch Condition

Specified Condition

F4-16 (FV) - Body ground

Ignition switch ON

4.5 to 5.5 V

NG

REPLACE COMBINATION METER ASSEMBLY

OK

3.

INSPECT FUEL SENDER GAUGE ASSEMBLY

*a

Component with harness connected

(Combination Meter Assembly)

(a) Measure the voltage according to the value(s) in the table below.

Standard Voltage:

Tester Connection

Switch Condition

Specified Condition

F4-23 (FR) - F4-15 (FE&B)

Ignition switch ON

0.2 to 4.7 V

OK

REPLACE COMBINATION METER ASSEMBLY

NG

4.

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

(a) Disconnect the M14 fuel suction tube with pump and gauge assembly connector.

(b) Disconnect the F4 combination meter assembly connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

M14-3 (FR) - F4-23 (FR)

Always

Below 1 Ω

M14-2 (FE) - F4-15 (FE&B)

Always

Below 1 Ω

M14-1 (FV) - F4-16 (FV)

Always

Below 1 Ω

F4-23 (FR) - Body ground

Always

10 kΩ or higher

F4-15 (FE&B) - Body ground

Always

10 kΩ or higher

F4-16 (FV) - Body ground

Always

10 kΩ or higher

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

5.

INSPECT FUEL SENDER GAUGE ASSEMBLY

(a) Remove the fuel sender gauge assembly.

Click here

(b) Inspect the fuel sender gauge assembly.

Click here

NG

REPLACE FUEL SENDER GAUGE ASSEMBLY

OK

6.

INSPECT FUEL SUCTION TUBE WITH PUMP AND GAUGE ASSEMBLY

*a

Component without harness connected

(Fuel Suction Tube with Pump and Gauge Assembly)

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

M14-1 (FV) - A-3

Always

Below 1 Ω

M14-2 (FE) - A-2

Always

Below 1 Ω

M14-3 (FR) - A-1

Always

Below 1 Ω

Result

Proceed to

OK

A

NG (w/o Canister Pump Module)

B

NG (w/ Canister Pump Module)

C

A

REPLACE COMBINATION METER ASSEMBLY

B

REPLACE FUEL SUCTION TUBE WITH PUMP AND GAUGE ASSEMBLY

C

REPLACE FUEL SUCTION TUBE WITH PUMP AND GAUGE ASSEMBLY

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