DTC B1500: Fuel Sender Open Detected [10/2024 - ]: Procedure

1. Check for DTCs.

   Body Electrical > Combination Meter > Trouble Codes 

   OK

   DTC B1500 (current code) is not output.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

See step  4

Result: 

OK 

See step  2

1. Disconnect the M17 fuel sender gauge assembly connector.
2. Disconnect the M9 No. 2 fuel sender gauge assembly connector.
3. Disconnect the F11 combination meter assembly connector.
4. Check the condition of each connector.

   OK

   Each connector is normal.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPAIR OR REPLACE THE POOR CONTACT OF CONNECTOR. 

Result: 

OK 

See step  3

1. Read the Data List according to the display on the GTS.

   Body Electrical > Combination Meter > Data List 

   Tester Display	Measurement Item	Range	Diagnostic Note
   Fuel level resistance [ohm]	Fuel sensor value display	0 to 511.5 ohm	-

   Body Electrical > Combination Meter > Data List 

   Tester Display
   Fuel level resistance [ohm]

   OK

   The value of 0 to 480 ohm is displayed in the Data List item.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

USE SIMULATION METHOD TO CHECK 

HINT: 

• Even if DTC is displayed, the circuit has returned to a normal condition at this time. Reproduce the failure, and then perform the diagnosis again.

  Refer to HOW TO PROCEED WITH TROUBLESHOOTING [11/2021 - ]

• In this case, temporary poor contact of connector, temporary open or short circuit of harness may be the cause.

Result: 

NG 

REPLACE COMBINATION METER ASSEMBLY 

Refer to REMOVAL [11/2021 - ]

1. Perform the Active Test according to the display on the GTS.

   Body Electrical > Combination Meter > Active Test 

   Tester Display	Measurement Item	Diagnostic Note
   E-Lock	Fuel receiver gauge	-
   E dial	Fuel receiver gauge	-
   Low fuel warning indicate point	Fuel receiver gauge	-
   1/4 dial	Fuel receiver gauge	-
   1/2 dial	Fuel receiver gauge	-
   3/4 dial	Fuel receiver gauge	-
   F dial	Fuel receiver gauge	-
   F-Lock	Fuel receiver gauge	-
   Remaining fuel	Fuel receiver gauge	-

   Body Electrical > Combination Meter > Active Test 

   Tester Display
   E-Lock

   Body Electrical > Combination Meter > Active Test 

   Tester Display
   E dial

   Body Electrical > Combination Meter > Active Test 

   Tester Display
   Low fuel warning indicate point

   Body Electrical > Combination Meter > Active Test 

   Tester Display
   1/4 dial

   Body Electrical > Combination Meter > Active Test 

   Tester Display
   1/2 dial

   Body Electrical > Combination Meter > Active Test 

   Tester Display
   3/4 dial

   Body Electrical > Combination Meter > Active Test 

   Tester Display
   F dial

   Body Electrical > Combination Meter > Active Test 

   Tester Display
   F-Lock

   Body Electrical > Combination Meter > Active Test 

   Tester Display
   Remaining fuel

   OK

   Active Test can be performed correctly.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPLACE COMBINATION METER ASSEMBLY 

Refer to REMOVAL [11/2021 - ]

Result: 

OK 

See step  5

Refer to INSPECTION [12/2023 - ]

Result

Result: 

NG 

REPLACE FUEL SENDER GAUGE ASSEMBLY 

Refer to REMOVAL [12/2023 - ]

Result: 

OK 

See step  6

Refer to INSPECTION [12/2023 - ]

Result

Result: 

NG 

REPLACE FUEL SENDER GAUGE ASSEMBLY NO. 2 

Refer to REMOVAL [12/2023 - ]

Result: 

OK 

See step  7

1. Disconnect the M17 fuel sender gauge assembly connector.
2. Disconnect the M9 No. 2 fuel sender gauge assembly connector.
3. Disconnect the F11 combination meter assembly connector.
4. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   M17-1 - F11-25(FUEL SENSOR+)	Always	Below 10 Ω
   M9-2 - F11-26(FUEL SENSOR GND)	Always	Below 10 Ω
   M17-4 - M9-1	Always	Below 10 Ω
   M17-1 or F11-25(FUEL SENSOR+) - Body ground	Always	10 kΩ or higher
   M17-4 or M9-1 - Body ground	Always	10 kΩ or higher

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE COMBINATION METER ASSEMBLY 

Refer to REMOVAL [11/2021 - ]

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR