AutoCodes – Chevrolet – P1B53 Chevrolet

P1B53 Chevrolet Code - Hybrid/Electric Vehicle Battery 37 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: P1B53 Chevrolet indicates Hybrid/Electric Vehicle Battery 37 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 844

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 09, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1B53 Chevrolet 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 P1B53 Chevrolet - Hybrid/Electric Vehicle Battery 37 Circuit High Voltage - AutoCodes.com — P1B53 Chevrolet Code - Hybrid/Electric Vehicle Battery 37 Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P1B53 Chevrolet?

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

How to Fix the DTC P1B53 Chevrolet?

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 P1B53 Chevrolet 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 P1B53 Chevrolet Code

1. What does the OBDII code P1B53 Chevrolet indicate?

The code P1B53 for a Chevrolet hybrid/electric vehicle refers to an issue with the Battery 37 Circuit High Voltage.

2. What are common symptoms of the P1B53 code in a Chevrolet hybrid/electric vehicle?

Common symptoms include the check engine light coming on, reduced hybrid/electric vehicle performance, and potential inability to start the vehicle.

3. What are possible causes of the P1B53 code in a Chevrolet hybrid/electric vehicle?

Causes may include a faulty battery pack, damaged high voltage wiring, issues with the battery management system, or a malfunctioning battery control module.

4. How can I diagnose the P1B53 code in a Chevrolet hybrid/electric vehicle?

Diagnosis typically involves using a diagnostic scanner to retrieve the specific fault codes, testing the battery pack and related components, and inspecting the high voltage wiring for any visible damage.

5. Can I still drive my Chevrolet hybrid/electric vehicle with the P1B53 code present?

It is not recommended to drive the vehicle with the P1B53 code active, as it can lead to further damage and potential safety hazards due to the high voltage nature of the system.

6. How can I repair the P1B53 code in my Chevrolet hybrid/electric vehicle?

Repair options may include replacing the faulty battery pack, repairing or replacing damaged wiring, resetting the battery management system, or reprogramming the battery control module.

7. Is it safe to attempt repairs on the high voltage system related to the P1B53 code in a Chevrolet hybrid/electric vehicle?

Working on high voltage systems should only be done by trained professionals with the proper equipment and knowledge to ensure safety and prevent accidents.

8. Will resetting the check engine light clear the P1B53 code in a Chevrolet hybrid/electric vehicle?

Resetting the check engine light may temporarily clear the code, but it is essential to diagnose and address the underlying issue to prevent it from reoccurring.

9. How much does it typically cost to repair the P1B53 code in a Chevrolet hybrid/electric vehicle?

Repair costs can vary depending on the specific issue, but they may range from a few hundred to a few thousand dollars, especially if components like the battery pack need replacement.

10. Can regular maintenance help prevent the occurrence of the P1B53 code in a Chevrolet hybrid/electric vehicle?

Regular maintenance, such as checking the battery health and ensuring proper cooling of the high voltage system, can help prevent issues that may trigger the P1B53 code.