AutoCodes – Lexus – P0B83 Lexus

P0B83 Lexus Code - Hybrid Battery Voltage Sense 'O' Circuit Low

Quick Answer

The HV battery uses nickel metal-hydride batteries and does not require external charging. Common causes include Faulty Battery smart unit, Faulty HV battery assembly. 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: P0B83 Lexus indicates Hybrid Battery Voltage Sense 'O' Circuit Low.
Common causes: Common causes include Faulty Battery smart unit, Faulty HV battery assembly.
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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 1,442

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 Mar 08, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code P0B83 Lexus Description

The HV battery uses nickel metal-hydride batteries and does not require external charging. The power management control ECU controls the SOC (state of charge) of the HV battery at a constant level during driving. The HV battery is composed of 28 modules, and each module consists of eight 1.2 V cells in series. The battery smart unit monitors battery block voltage at 14 locations. Each battery block is composed of 2 modules in a set. The battery smart unit, which monitors the voltage of the battery blocks, determines that malfunction has occurred if a voltage difference between the battery blocks exceeds the standard. When the malfunction detection condition is satisfied, the power management control ECU (HV CPU) will illuminates the Malfunction Indicator Lamp (MIL) and set a Diagnostic Trouble Code (DTC).

OBDII Code P0B83 Lexus - Hybrid Battery Voltage Sense 'O' Circuit Low - AutoCodes.com — P0B83 Lexus Code - Hybrid Battery Voltage Sense 'O' Circuit Low

What does this mean?

What are the Possible Causes of the DTC P0B83 Lexus?

Faulty Battery smart unit
Faulty HV battery assembly

How to Fix the DTC P0B83 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 P0B83 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.

Need more information about the P0B83 Lexus code?

Need more information on how to fix the P0B83 Lexus code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0B83 Lexus code diagnosed by a professional: Find a repair shop in your area

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 P0B83 Lexus Code

1. What are the common symptoms of OBDII code P0B83 in a Lexus Hybrid?

- Common symptoms include the check engine light illuminating, decreased fuel efficiency, and potential issues with the hybrid system performance.

2. What can cause the Hybrid Battery Voltage Sense 'O' Circuit Low error in a Lexus?

- The error code P0B83 in a Lexus Hybrid may be caused by a faulty hybrid battery voltage sensor, damaged wiring, or a problem with the hybrid battery itself.

3. How can I diagnose the Hybrid Battery Voltage Sense 'O' Circuit Low issue in my Lexus?

- Diagnosing the P0B83 code involves using an OBDII scanner to retrieve the error code, checking the hybrid battery voltage sensor and related wiring for any visible damage, and performing a voltage test on the hybrid battery.

4. Can I continue driving my Lexus with the Hybrid Battery Voltage Sense 'O' Circuit Low code?

- It is not recommended to continue driving your Lexus with the P0B83 code as it can lead to further damage to the hybrid system and potentially affect the vehicle's performance.

5. Is it possible to repair the Hybrid Battery Voltage Sense 'O' Circuit Low issue on my own?

- While it is possible to troubleshoot and repair some causes of the P0B83 code on your own, it is recommended to seek professional help, especially when dealing with the hybrid system components.

6. How much does it typically cost to repair the Hybrid Battery Voltage Sense 'O' Circuit Low problem in a Lexus?

- The cost of repairing the P0B83 code in a Lexus can vary depending on the underlying cause, but it may range from a few hundred to a couple thousand dollars, including parts and labor.

7. Can resetting the error codes clear the Hybrid Battery Voltage Sense 'O' Circuit Low code?

- Resetting the error codes may temporarily clear the P0B83 code, but if the underlying issue is not addressed, the code is likely to reappear once the system detects the problem again.

8. Will driving my Lexus with the Hybrid Battery Voltage Sense 'O' Circuit Low code damage other components?

- Continuing to drive with the P0B83 code may put additional strain on the hybrid system components and potentially lead to further damage if the issue is not resolved promptly.

9. Are there any preventive maintenance measures to avoid the Hybrid Battery Voltage Sense 'O' Circuit Low error in a Lexus?

- Regular maintenance of the hybrid system, including checking the battery voltage sensor and related wiring, can help prevent issues like the P0B83 code from occurring.

10. How long does it typically take to repair the Hybrid Battery Voltage Sense 'O' Circuit Low issue in a Lexus?

- The repair time for the P0B83 code can vary depending on the exact cause and complexity of the repair, but it may take a few hours to a day to diagnose and fix the issue.