AutoCodes – Lexus – B2624 Lexus

B2624 Lexus Code - Vehicles Speed Malfunction

Quick Answer

The Multiplex Tilt and Telescopic ECU forms a network with the ECUs of other systems through the communication bus. Common causes include Faulty Multiplex Tilt and Telescopic ECU, Multiplex Tilt and Telescopic ECU harness is open or shorted, Multiplex Tilt and Telescopic ECU 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: B2624 Lexus indicates Vehicles Speed Malfunction.
Common causes: Common causes include Faulty Multiplex Tilt and Telescopic ECU, Multiplex Tilt and Telescopic ECU harness is open or shorted, Multiplex Tilt and Telescopic ECU 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 2,533

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 Jan 09, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B2624 Lexus Description

The Multiplex Tilt and Telescopic ECU forms a network with the ECUs of other systems through the communication bus. Each ECU informs the other ECUs that it is connected to the network by outputting a specified signal (periodic signal) to the communication bus on a regular schedule. The Multiplex Tilt and Telescopic ECU receives vehicle speed signals from the combination meter via the communication bus to prevent improper operation of the auto away/return function during driving. The Diagnostic Trouble Code (DTC) sets when the auto away function is disabled with the last vehicle speed signal* at 10 km/h (6 mph) or more or the vehicle speed signal is lost for 5 seconds or more and the auto away/return function is disabled.

OBDII Code B2624 Lexus - Vehicles Speed Malfunction - AutoCodes.com — B2624 Lexus Code - Vehicles Speed Malfunction

What does this mean?

What are the Possible Causes of the DTC B2624 Lexus?

Faulty Multiplex Tilt and Telescopic ECU
Multiplex Tilt and Telescopic ECU harness is open or shorted
Multiplex Tilt and Telescopic ECU circuit poor electrical connection
Faulty Meter/Gauge System

How to Fix the DTC B2624 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 B2624 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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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 B2624 Lexus Code

1. What are the common symptoms of OBDII code B2624 in a Lexus vehicle?

- Common symptoms include erratic speedometer readings, speedometer failure, and issues with cruise control functionality.

2. What are some possible causes of OBDII code B2624 in a Lexus?

- Potential causes include a faulty vehicle speed sensor, damaged wiring or connectors related to the speed sensor, or a malfunctioning instrument cluster.

3. How can I diagnose the source of the OBDII code B2624 in my Lexus vehicle?

- To diagnose the issue, you can use a diagnostic scanner to retrieve the trouble codes, inspect the vehicle speed sensor and its connections, and perform a visual inspection of the wiring harness for any damage.

4. Can I continue driving my Lexus with OBDII code B2624 triggered?

- It is not recommended to drive your vehicle with this code active, as it can affect the accuracy of your speedometer and potentially lead to other issues with vehicle operation.

5. How can I repair OBDII code B2624 in my Lexus?

- Repair options include replacing the faulty vehicle speed sensor, repairing or replacing damaged wiring or connectors, or addressing any issues with the instrument cluster.

6. Are there any DIY tips for addressing OBDII code B2624 in a Lexus?

- DIY enthusiasts can start by checking the vehicle speed sensor and its connections for any obvious issues, such as loose connections or physical damage, before considering more complex repairs.

7. Can a mechanic help me reset OBDII code B2624 in my Lexus?

- A mechanic can diagnose the issue, perform the necessary repairs, and reset the code using a diagnostic scanner to clear the error code from the vehicle's system.

8. What other problems can OBDII code B2624 cause in a Lexus vehicle?

- In addition to speedometer and cruise control issues, this code can potentially impact the vehicle's transmission shifting behavior and overall drivability.

9. Is OBDII code B2624 a common issue in Lexus vehicles?

- While not extremely common, issues related to the vehicle speed sensor and speedometer malfunctions can trigger this code in Lexus vehicles, especially in older models.

10. How much does it typically cost to repair OBDII code B2624 in a Lexus?

- The cost of repairs can vary depending on the exact cause of the issue, but it may involve parts and labor expenses ranging from $100 to $500 or more, depending on the extent of the repairs needed.