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 | Note |
---|---|---|---|---|---|
B1500 | Fuel Sender Open Detected | When IG voltage is 9.5 V or more and the following condition is detected:
|
| - | - |
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 engine switch on (IG).
(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: 64.8 L Fuel receiver gauge indicates 3/4: 54.0 L Fuel receiver gauge indicates 1/2: 36.0 L Fuel receiver gauge indicates 1/4: 18.0 L Fuel receiver gauge indicates E: 7.2 L | Unit: Liter |
Tester Display |
---|
Fuel Input |
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 |
|
2. | INSPECT FUEL SENDER GAUGE ASSEMBLY (POWER SOURCE) |
(a) Measure the voltage according to the value(s) in the table below. Standard Voltage:
|
|
NG | ![]() | REPLACE COMBINATION METER ASSEMBLY |
|
3. | INSPECT FUEL SENDER GAUGE ASSEMBLY |
(a) Measure the voltage according to the value(s) in the table below. Standard Voltage:
|
|
OK | ![]() | REPLACE COMBINATION METER ASSEMBLY |
|
4. | CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - FUEL SUCTION TUBE WITH PUMP AND GAUGE ASSEMBLY) |
(a) Disconnect the J10 combination meter assembly connector.
(b) Disconnect the S10 fuel suction tube with pump and gauge assembly connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection | Condition | Specified Condition |
---|---|---|
J10-27 (FR) - S10-3 (S) | Always | Below 1 Ω |
J10-28 (FE) - S10-2 (FE) | Always | Below 1 Ω |
J10-18 (FV) - S10-1 (FV) | Always | Below 1 Ω |
J10-27 (FR) or S10-3 (S) - Body ground | Always | 10 kΩ or higher |
J10-28 (FE) or S10-2 (FE) - Body ground | Always | 10 kΩ or higher |
J10-18 (FV) or S10-1 (FV) - Body ground | Always | 10 kΩ or higher |
NG | ![]() | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
5. | INSPECT FUEL SENDER GAUGE ASSEMBLY |
(a) Remove the fuel sender gauge assembly.
Click here
(b) Inspect the fuel sender gauge assembly.
Click here
OK:
Fuel sender gauge assembly is normal.
NG | ![]() | REPLACE FUEL SENDER GAUGE ASSEMBLY |
|
6. | INSPECT FUEL SUCTION TUBE WITH PUMP AND GAUGE ASSEMBLY |
(a) Measure the resistance according to the value(s) in the table below. Standard Resistance:
|
|
OK | ![]() | REPLACE COMBINATION METER ASSEMBLY |
NG | ![]() | REPLACE FUEL SUCTION TUBE WITH PUMP AND GAUGE ASSEMBLY |
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Power Mirror Control System (w/o Memory): AUTO Power Retract Mirrors do not operate
DESCRIPTION The multiplex network master switch assembly sends the auto retractable outer mirror switch signal to the main body ECU (multiplex network body ECU) via LIN communication. The main body ECU (multiplex network body ECU) sends the auto retract/return signal to the outer mirror control ECU ...
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Power Back Door System (w/ Outside Door Control Switch): Back Door Closer does not Operate
DESCRIPTION If the back door closer does not operate, one of the following may be the cause: 1) improper fit of the back door or a foreign object stuck in the back door, 2) a malfunction in the multiplex network door ECU power source circuit, 3) a malfunction in the back door lock assembly circuit, ...