AutoCodes – Lexus – B1500 Lexus

B1500 Lexus Code - Fuel Sender Open Detected

Quick Answer

The combination meter assembly (meter circuit plate) uses the fuel sender gauge assembly to detect the amount of fuel remaining in the fuel tank assembly. Common causes include Faulty Fuel Sender Gauge Assembly, Fuel Sender Gauge Assembly harness is open or shorted, Fuel Sender Gauge Assembly circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: B1500 Lexus indicates Fuel Sender Open Detected.
Common causes: Common causes include Faulty Fuel Sender Gauge Assembly, Fuel Sender Gauge Assembly harness is open or shorted, Fuel Sender Gauge Assembly circuit poor electrical connection.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 2,834

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Apr 29, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1500 Lexus Description

The combination meter assembly (meter circuit plate) uses the fuel sender gauge assembly to detect the amount of fuel remaining in the fuel tank assembly. The Hall IC built into the fuel sender gauge assembly changes the output voltage according to the amount of fuel remaining. The combination meter assembly (meter circuit plate) detects the voltage output from the fuel sender gauge assembly and operates the fuel receiver gauge. During normal driving: As the fuel level in the fuel tank assembly changes when driving on a hill or applying the brakes, the fuel receiver gauge reading is updated according to the fuel injection volume during normal driving. However, as the fuel injection volume measurement has a margin of error, the value is indicated after correction by input values from the fuel sender gauge assembly. This Diagnostic Trouble Code (DTC) is stored when the Combination Meter Assembly (meter circuit plate) detects a Fuel Sender Gauge Assembly malfunction via a direct line.

OBDII Code B1500 Lexus - Fuel Sender Open Detected - AutoCodes.com — B1500 Lexus Code - Fuel Sender Open Detected

What does this mean?

What are the Possible Causes of the DTC B1500 Lexus?

Faulty Fuel Sender Gauge Assembly
Fuel Sender Gauge Assembly harness is open or shorted
Fuel Sender Gauge Assembly circuit poor electrical connection
Faulty Combination Meter Assembly

How to Fix the DTC B1500 Lexus?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B1500 Lexus code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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Need more information on how to fix the B1500 Lexus code? Get Access to Factory Service Manuals

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about B1500 Lexus Code

1. What are the common symptoms of OBDII code B1500 in a Lexus, indicating a Fuel Sender Open Detected issue?

- Common symptoms include inaccurate fuel gauge readings, fluctuating fuel gauge readings, or a fuel gauge that remains at empty regardless of fuel level.

2. What are the possible causes of OBDII code B1500 in a Lexus related to Fuel Sender Open Detected?

- The code B1500 may be triggered by a faulty fuel level sender, a poor electrical connection to the fuel sender, or a damaged wiring harness.

3. How can I diagnose the OBDII code B1500 in a Lexus for a Fuel Sender Open Detected problem?

- Diagnose the issue by checking the fuel level sender's electrical connection, testing the resistance of the sender, and inspecting the wiring for any visible damage.

4. Can I still drive my Lexus with OBDII code B1500 indicating a Fuel Sender Open Detected issue?

- While the vehicle may still be driven, it is not recommended as inaccurate fuel readings can lead to running out of fuel unexpectedly. It is best to address the issue promptly.

5. How can I repair OBDII code B1500 in a Lexus for a Fuel Sender Open Detected problem?

- Repair typically involves replacing the faulty fuel level sender, repairing the electrical connection, or fixing any damaged wiring harness related to the fuel sender.

6. Are there any DIY tips for addressing OBDII code B1500 in a Lexus with a Fuel Sender Open Detected issue?

- DIY tips include carefully inspecting the fuel sender and its connections for any visible issues, ensuring a secure electrical connection, and testing the sender's resistance.

7. Will resetting the OBDII code B1500 in a Lexus fix the Fuel Sender Open Detected problem?

- Resetting the code may temporarily clear the warning light, but it will not fix the underlying issue causing the Fuel Sender Open Detected problem.

8. How much does it cost to repair OBDII code B1500 in a Lexus for a Fuel Sender Open Detected issue?

- The cost of repair can vary depending on the exact cause of the problem, but it typically ranges from $150 to $300 for parts and labor.

9. Can a Lexus dealership service department help diagnose and repair OBDII code B1500 for a Fuel Sender Open Detected issue?

- Yes, the dealership's service department is equipped to diagnose and repair OBDII code B1500 related to a Fuel Sender Open Detected problem using specialized tools and expertise.

10. Is OBDII code B1500 specific to Lexus vehicles, or can it occur in other car makes and models?

- While OBDII code B1500 may be specific to Lexus vehicles, similar fuel sender open detected issues can occur in other car makes and models with OBDII systems.