AutoCodes – Generic – P1B62

P1B62 Code - Hybrid/Electric Vehicle Battery 42 Circuit High Voltage

Quick Answer

The Hybrid/Electric Vehicle battery pack contains 288 cells. Common causes include Faulty Hybrid/Electric Vehicle Battery Pack, Faulty Hybrid/Electric Vehicle Battery Interface Control Module. 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: P1B62 indicates Hybrid/Electric Vehicle Battery 42 Circuit High Voltage.
Common causes: Common causes include Faulty Hybrid/Electric Vehicle Battery Pack, Faulty Hybrid/Electric Vehicle Battery Interface Control Module.
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 4,448

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 12, 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 P1B62 Description

The Hybrid/Electric Vehicle battery pack contains 288 cells. Groups of three cells are welded together in parallel. There are a total of 96 cell groups in the hybrid/EV battery pack assembly. These cell groups are electrically connected in-series. Each individual cell group is rated at 3.7 V, for a nominal system voltage of 355 V direct current. The battery cells are also grouped together into three sections. The first 90 cells/30 cell groups make up battery section one. This section is adjacent to the cowl and contains batteries 67 through to 96. Battery section two is located behind section one. It is made up of 72 cells/24 cell groups and contains batteries 43 through to 66. The transverse battery section is section number three, it is made up of the remaining 126 cells/42 cell groups and contains batteries 1 through to 42. The three battery sections are individually serviceable components.
The battery energy control module monitors the voltage of the 96 battery cell groups through the four hybrid/EV battery interface control modules. Voltage sense circuits are attached to each individual cell group, and these sense circuits terminate at a connector located on the top surface of the battery section. A serviceable auxiliary battery wiring harness joins this connector to a hybrid/EV battery interface control module, also located on the top surface of the battery section. The hybrid/EV battery interface control module encodes the voltage reading and transmits it to the battery energy control module through the battery control harness. There is one hybrid/EV battery interface control module located on battery sections one and two, and two hybrid/EV battery interface control modules associated with battery section three. The hybrid/EV battery interface control module, battery energy control module wiring harness, auxiliary battery wiring harness, and battery energy control module are all considered serviceable components.
The battery energy control module will determine when a fault condition is present. Diagnostics and system status are communicated from the battery energy control module to hybrid/EV powertrain control module 2 through serial data. The hybrid/EV powertrain control module 2 is the host controller for diagnostic trouble code information.

OBDII Code P1B62 - Hybrid/Electric Vehicle Battery 42 Circuit High Voltage - AutoCodes.com — P1B62 Code - Hybrid/Electric Vehicle Battery 42 Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P1B62?

Faulty Hybrid/Electric Vehicle Battery Pack
Faulty Hybrid/Electric Vehicle Battery Interface Control Module

How to Fix the DTC P1B62?

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 P1B62 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 P1B62 code?

Need more information on how to fix the P1B62 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1B62 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

P1B62 Buick — Hybrid/Electric Vehicle Battery 42 Circuit High Voltage
P1B62 Cadillac — Hybrid/Electric Vehicle Battery 42 Circuit High Voltage
P1B62 Chevrolet — Hybrid/Electric Vehicle Battery 42 Circuit High Voltage
P1B62 GMC — Hybrid/Electric Vehicle Battery 42 Circuit High Voltage
P1B62 Saturn — Hybrid/Electric Vehicle Battery 42 Circuit High Voltage

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 P1B62 Code

1. What are common symptoms of OBDII code P1B62 (Hybrid/Electric Vehicle Battery 42 Circuit High Voltage)?

The common symptoms of this code may include the illumination of the check engine light, reduced hybrid system performance, and potential issues with the high voltage battery system.

2. What are the possible causes of OBDII code P1B62?

Possible causes of this code include a faulty high voltage battery pack, damaged battery cables or connections, issues with the battery management system, or a problem with the high voltage circuit 42.

3. How can I diagnose the source of OBDII code P1B62?

Diagnosing the source of this code typically involves using a professional OBDII scanner to read the code and identify the specific area of the high voltage battery system that is experiencing issues. Additionally, a thorough inspection of the battery pack, cables, and connections is recommended.

4. Is it safe to drive with OBDII code P1B62 present?

It is not recommended to drive your vehicle with this code present, as it can indicate potential issues with the high voltage battery system in hybrid or electric vehicles. Continuing to drive with this code may lead to further damage or safety hazards.

5. How can I repair OBDII code P1B62?

Repairing this code may involve replacing a faulty high voltage battery pack, repairing damaged battery cables or connections, resetting the battery management system, or addressing issues with the high voltage circuit 42. It is recommended to consult a professional mechanic for proper diagnosis and repair.

6. Can I reset OBDII code P1B62 on my own?

While you can attempt to clear the code using an OBDII scanner, it is important to address the underlying issue causing the code before clearing it. Simply resetting the code without resolving the root cause may lead to its reoccurrence.

7. Are there any safety precautions to take when dealing with OBDII code P1B62?

When dealing with issues related to high voltage battery systems in hybrid or electric vehicles, it is crucial to take proper safety precautions. Ensure that the vehicle is powered off, and consider consulting a professional technician with experience in handling high voltage systems.

8. How do I prevent OBDII code P1B62 from occurring in the future?

Regular maintenance of the high voltage battery system, including checking and cleaning battery connections, monitoring battery health, and addressing any warning signs promptly, can help prevent the recurrence of this code in the future.

9. Can OBDII code P1B62 affect the overall performance of my hybrid or electric vehicle?

Yes, this code can impact the overall performance of your vehicle, particularly in terms of hybrid system functionality and battery performance. Addressing the underlying issue promptly is essential to maintaining the optimal operation of your vehicle.

10. Is it necessary to take my vehicle to a dealership for OBDII code P1B62 repairs?

While you can seek repairs at a dealership, you may also consult independent automotive technicians or shops specializing in hybrid and electric vehicles for diagnostics and repairs related to OBDII code P1B62. Be sure to choose a reputable service provider with experience in handling high voltage systems.