B2059 Toyota Code - Vehicle Speed Malfunction
Quick Answer
The seat belt control ECU receives vehicle speed information from the ECM and master cylinder solenoid (skid control ECU) via CAN communication. Common causes include Faulty Combination meter ECM, Faulty Master cylinder solenoid (skid control ECU), Faulty Seat belt control ECU. 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
- B2059 Toyota indicates Vehicle Speed Malfunction.
- Common causes
- Common causes include Faulty Combination meter ECM, Faulty Master cylinder solenoid (skid control ECU), Faulty Seat belt control ECU.
- 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.
Code B2059 Toyota Description
What are the Possible Causes of the DTC B2059 Toyota?
- Faulty Combination meter ECM
- Faulty Master cylinder solenoid (skid control ECU)
- Faulty Seat belt control ECU
- Faulty Distance control ECU
How to Fix the DTC B2059 Toyota?
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 B2059 Toyota 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.
Need more information about the B2059 Toyota code?
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Need Help with the Code?
Get the B2059 Toyota code diagnosed by a professional: Find a repair shop in your area
Precautions for SRS “AIR BAG” and “SEAT BELT PRE-TENSIONER” Service
- Never probe the electrical connectors on air bag, side air curtain modules or seat belts.
- Never disassemble or tamper with safety belt buckle/retractor pretensioners, adaptive load limiting retractors, safety belt inflators, or probe the electrical connectors.
- Do not use electrical test equipment to check SRS circuits unless instructed to in this Service Manual.
- Before servicing the SRS, turn ignition switch OFF, disconnect both battery cables and wait at least 3 minutes. For approximately 3 minutes after the cables are removed, it is still possible for the air bag and seat belt pre-tensioner to deploy. Therefore, do not work on any SRS connectors or wires until at least 3 minutes have passed.
Failure to follow this instruction may result in the accidental deployment of these modules, which increases the risk of serious personal injury or death.
Frequently Asked Questions about B2059 Toyota Code
1. What are the common symptoms of OBDII code B2059 Toyota (Vehicle Speed Malfunction)?
- Common symptoms include erratic speedometer readings, cruise control not working properly, and the vehicle going into "limp mode."
2. What are the possible causes of OBDII code B2059 Toyota?
- The code B2059 Toyota can be caused by issues with the vehicle speed sensor, wiring or connector problems, or a malfunction in the instrument cluster.
3. How can I diagnose the cause of OBDII code B2059 Toyota?
- Diagnosing the code typically involves checking the vehicle speed sensor for proper operation, inspecting the wiring and connectors for damage, and using a scan tool to retrieve additional diagnostic information.
4. Can I still drive my vehicle with OBDII code B2059 Toyota?
- It is not recommended to drive the vehicle with this code, as it may affect the speedometer accuracy and other safety features like cruise control.
5. How can I repair OBDII code B2059 Toyota?
- Repairing the code may involve replacing the faulty vehicle speed sensor, repairing damaged wiring or connectors, or recalibrating the instrument cluster.
6. Are there any DIY tips for fixing OBDII code B2059 Toyota?
- DIY tips include checking for loose or damaged wiring, ensuring the vehicle speed sensor is securely connected, and following manufacturer repair procedures.
7. Will OBDII code B2059 Toyota cause engine performance issues?
- While the code itself may not directly affect engine performance, it can lead to issues with the vehicle speed control systems and overall driving experience.
8. Can a mechanic reset OBDII code B2059 Toyota without fixing the underlying issue?
- While a mechanic can clear the code temporarily, it is essential to address the root cause to prevent the code from reoccurring.
9. How long does it typically take to repair OBDII code B2059 Toyota?
- The repair time can vary depending on the exact cause of the code, but it may take anywhere from a few hours to a full day to diagnose and fix the issue.
10. Is OBDII code B2059 Toyota a common problem in Toyota vehicles?
- The code B2059 Toyota related to vehicle speed malfunction can occur in various Toyota models, especially those equipped with electronic speed sensors and instrument clusters.
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