Lexus NX: Fuel Sender Open Detected (B1500)
DESCRIPTION
This DTC is stored when the combination meter detects a fuel sender gauge malfunction.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| B1500 | Fuel Sender Open Detected | Both conditions are met:
|
|
WIRING DIAGRAM
CAUTION / NOTICE / HINT
CAUTION:
Be careful of flames.
NOTICE:
When replacing the combination meter assembly, make sure to replace it with a new one.
PROCEDURE
| 1. | READ VALUE USING TECHSTREAM (FUEL INPUT) |
(a) Using the Techstream, read the Data List.
Click here .gif)
| Tester Display | Measurement Item | Range | Normal Condition | Diagnostic Note |
|---|---|---|---|---|
| Fuel Input | Fuel input | Min.: 0, Max.: 127.5 | Current fuel level displayed | Unit: Liter |
| Tester Display |
|---|
| Fuel Input |
OK:
Fuel amount value displayed on the Techstream is almost the same as the needle indication.
| OK | .gif) | REPLACE COMBINATION METER ASSEMBLY |
|
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| 2. | 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 |
|
| 3. | CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - FUEL SENDER GAUGE ASSEMBLY AND BODY GROUND) |
(a) Disconnect the I10 combination meter assembly connector.
(b) Disconnect the b2 fuel sender gauge assembly connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| I10-27 (FR) - b2-1 (FS) | Always | Below 1 Ω |
| I10-28 (FE) - b2-2 (FE) | Always | Below 1 Ω |
| I10-31 (ES) - Body ground | Always | Below 1 Ω |
| I10-27 (FR) or b2-1 (FS) - Body ground | Always | 10 kΩ or higher |
| I10-28 (FE) or b2-2 (FE) - Body ground | Always | 10 kΩ or higher |
| OK | | REPLACE COMBINATION METER ASSEMBLY |
| NG | | REPAIR OR REPLACE HARNESS OR CONNECTOR |
READ NEXT:
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DESCRIPTION These DTCs are stored when the combination meter assembly detects an open in a turn signal light circuit, a short in a turn signal light circuit, or a short in the hazard warning light cir
Lost Communication with EV ECU (U0100,U0129,U0131,U0142,U0151,U0163,U0182,U023A)
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IG voltage is 10.5 V or higher.
No communica
Speedometer Malfunction
DESCRIPTION The combination meter assembly receives vehicle speed signals from the brake booster with master cylinder assembly (skid control ECU) via the CAN communication line. The wheel speed sensor
SEE MORE:
How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT HINT: *: Use the Techstream. PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP
NEXT 2. CUSTOMER PROBLEM ANALYSIS (a) Interview the customer and confirm the problem. Click here
NEXT 3. INSPECT AUXILIARY BATTERY VOLTAGE
LTA (Lane Tracing Assist)
When driving on highways and
freeways with white (yellow) lane
lines, this function alerts the driver
when the vehicle might depart
from its lane or course* and provides
assistance by operating the
steering wheel to keep the vehicle
in its lane or course*. Furthermore,
the system provides st
