AutoCodes – GMC – P1B62 GMC

P1B62 GMC 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 GMC 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.

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Code Popularity 862

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

What does this mean?

What are the Possible Causes of the DTC P1B62 GMC?

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

How to Fix the DTC P1B62 GMC?

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 GMC 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 P1B62 GMC Code

1. What are the common symptoms of OBDII code P1B62 GMC related to Hybrid/Electric Vehicle Battery 42 Circuit High Voltage?

- Common symptoms include check engine light illumination, reduced hybrid/electric vehicle performance, and potential loss of power.

2. What are the possible causes of OBDII code P1B62 GMC indicating Hybrid/Electric Vehicle Battery 42 Circuit High Voltage?

- Possible causes may include a malfunctioning high voltage battery pack, faulty battery management system, wiring issues, or a damaged battery cell.

3. How can I diagnose the OBDII code P1B62 GMC for Hybrid/Electric Vehicle Battery 42 Circuit High Voltage?

- Diagnosis typically involves using a scan tool to read the code, checking the high voltage battery system for any visible damage, and performing voltage tests on the battery cells.

4. Is it safe to continue driving with OBDII code P1B62 GMC triggered for Hybrid/Electric Vehicle Battery 42 Circuit High Voltage?

- It is not recommended to continue driving with this code active, as it could lead to further damage to the high voltage battery system and potentially pose a safety risk.

5. What are some repair tips for addressing OBDII code P1B62 GMC related to Hybrid/Electric Vehicle Battery 42 Circuit High Voltage?

- Repair tips may include inspecting and repairing any damaged wiring, testing and replacing faulty battery components, resetting the fault code, and ensuring proper battery system connections.

6. Can I reset the OBDII code P1B62 GMC myself for Hybrid/Electric Vehicle Battery 42 Circuit High Voltage?

- You can attempt to reset the code using an OBDII scanner, but it is important to address the underlying issue causing the fault code to prevent it from reoccurring.

7. How much does it cost to repair OBDII code P1B62 GMC for Hybrid/Electric Vehicle Battery 42 Circuit High Voltage?

- The cost of repair can vary depending on the specific cause of the code, but it may involve expenses for parts replacement, labor, and potential diagnostic fees.

8. Are there any safety precautions to consider when working on the high voltage system related to OBDII code P1B62 GMC?

- It is crucial to follow proper safety procedures when working on high voltage systems, including wearing insulated gloves, de-energizing the system, and avoiding contact with exposed electrical components.

9. Will OBDII code P1B62 GMC for Hybrid/Electric Vehicle Battery 42 Circuit High Voltage affect the overall drivability of the vehicle?

- Yes, this code can affect the drivability of the vehicle, potentially leading to reduced performance, power loss, or the vehicle going into a failsafe mode to protect the high voltage system.

10. How often does OBDII code P1B62 GMC occur in Hybrid/Electric vehicles, and is it a common issue?

- This specific code may not be extremely common, but issues related to high voltage systems in Hybrid/Electric vehicles can occur and should be addressed promptly to ensure vehicle safety and performance.